Panasonic KX-TGP700 User manual

Base Unit for SIP Cordless Phone
Model No. KX-TGP700
Model No.
SIP Cordless Handset
KX-TPA70/KX-TPA73
Operating Instructions
KX-TGP700 KX-TPA70/KX-TPA73
Thank you for purchasing this Panasonic product. Please read this manual carefully before
using this product and save this manual for future use.
Please use the batteries provided and charge the batteries for about 6 hours (KX-TPA70)/3
hours (KX-TPA73) before using the handset for the first time. For details, see 9.2.3 Charging
the Batteries, page 114 in this manual.
Note
• In this manual, the suffix of each model number is omitted unless necessary.
• The illustrations such as some keys may differ from the appearance of the actual product.
• Certain products and features described in this document may not be available in your
country or area. Contact your phone system dealer/service provider.
• The contents and design of the software are subject to change without notice.
Document Version: 2020-07

Introduction
Outline
This manual describes information about the installation and operation of Panasonic
base unit, KX-TPA70, and KX-TPA73. If you need information for the other desk phone
or handset, refer to the corresponding manual.
Related Documentation
•Quick Start Guide
Describes basic information about the installation and safety precautions to prevent
personal injury and/or damage to property.
•Administrator Guide
Describes detailed information about the configuration and management of this unit.
This guide describes information about the KX-TGP700 only.
Manuals and supporting information are provided on the Panasonic Web site at:
https://panasonic.net/cns/pcc/support/sipphone/
Font Information
The font information for KX-TPA70 and KX-TPA73 is available on the Panasonic Web
site at:
https://panasonic.net/cns/pcc/support/sipphone/
For Future Reference
Record the information in the space below for future reference.
Note
• The serial number of this product may be found on the labels affixed to the following
places:
–Base unit (KX-TGP700): the bottom of the unit
–Handset (KX-TPA70/KX-TPA73): the inside of the battery compartment on the back
of the handset
–Charger (KX-TPA70/KX-TPA73): the bottom of the charger
You should note the serial numbers of these units in the space provided and retain
this manual as a permanent record of your purchase to aid in identification in the
event of theft.
• Copyright for Roboto
Copyright 2015 Google Inc. All Rights Reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
Introduction
2

http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under
the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and limitations
under the License.
• Some optional accessories are not available in some country/areas. For details,
contact your dealer.
MODEL NO.
SERIAL NO.
DATE OF PURCHASE
NAME OF DEALER
DEALER’S ADDRESS
DEALER’S TEL. NO.
Introduction
3

Introduction
4

Table of Contents
1 Important Information .......................................................... 9
1.1 Important Information ................................................................................. 10
1.1.1 Data Security ............................................................................................. 10
1.2 For Users in European Countries .............................................................. 11
1.3 For Users in the United Kingdom .............................................................. 11
1.4 For Users in Australia and the United Kingdom ...................................... 12
1.5 For Users in New Zealand .......................................................................... 12
1.6 For Users in the United States ................................................................... 13
1.7 For Users in Canada ................................................................................... 15
1.8 For Best Performance ................................................................................. 17
1.9 Battery Information (KX-TPA70/KX-TPA73) .............................................. 19
2 Before Operating the Telephones ..................................... 23
2.1 Before Operating the Telephones .............................................................. 24
2.1.1 System Overview ....................................................................................... 24
2.2 Accessory Information ............................................................................... 26
2.2.1 Included Accessories ................................................................................. 26
2.3 Location of Controls ................................................................................... 28
2.3.1 Base Unit (KX-TGP700) ............................................................................ 28
2.3.2 Handset (KX-TPA70/KX-TPA73) ................................................................ 31
2.4 The Display and Icons ................................................................................ 35
2.4.1 Display (KX-TPA70/KX-TPA73) ................................................................. 35
2.4.2 Display (KX-TPA68) ................................................................................... 37
2.4.3 Soft Keys (KX-TPA70/KX-TPA73) .............................................................. 38
2.4.4 LINE Key .................................................................................................... 42
2.4.5 Operation Outline ....................................................................................... 46
2.4.6 Menu List (KX-TPA70/KX-TPA73) ............................................................. 47
2.4.7 Function Keys (KX-TPA70/KX-TPA73) ...................................................... 48
2.5 Adjusting the Volume ................................................................................. 49
2.6 Call History .................................................................................................. 50
2.7 Parallel Mode (KX-TPA65/KX-TPA68) ........................................................ 53
2.8 Setting the Password .................................................................................. 54
2.9 Key Lock ...................................................................................................... 54
2.10 Selecting the Display Language ................................................................ 55
2.11 Entering Characters .................................................................................... 55
2.12 Power On/Off (KX-TPA70/KX-TPA73 only) ................................................ 57
2.13 Power Save Mode (KX-TPA70/KX-TPA73 only) ......................................... 57
3 Making Calls ........................................................................ 59
3.1 Making Calls ................................................................................................ 60
3.2 Basic Calling ................................................................................................ 60
3.2.1 Calling by Dialing ....................................................................................... 60
3.2.2 Making an Intercom Call ............................................................................ 61
3.3 Easy Dialing ................................................................................................. 61
3.3.1 Making a Call Using the Redial List ........................................................... 61
3.3.2 Hot Key Dialing .......................................................................................... 61
3.3.3 Using the Hot Line ..................................................................................... 62
Table of Contents
5

3.3.4 Using the Incoming/Outgoing Call History ................................................. 62
3.3.5 Using the Contacts .................................................................................... 62
3.4 Making a Multicast Voice Paging Call ....................................................... 64
4 Receiving Calls ................................................................... 67
4.1 Receiving Calls ............................................................................................ 68
4.1.1 Caller ID ..................................................................................................... 68
4.2 Answering Calls .......................................................................................... 68
4.3 Hands-free Mode ......................................................................................... 69
4.4 Answering an Intercom Call ....................................................................... 70
4.5 Silent Mode .................................................................................................. 70
4.6 Noise Reduction/Voice Clarity (KX-TPA70/KX-TPA73) ............................. 71
5 During a Conversation ....................................................... 73
5.1 During a Conversation ................................................................................ 74
5.1.1 Transferring a Call (Call Transfer) ............................................................. 74
5.1.2 Holding a Call ............................................................................................ 75
5.1.3 Three-party Conference ............................................................................. 76
5.1.4 Mute ........................................................................................................... 77
5.1.5 Call Waiting ................................................................................................ 77
6 Before Leaving Your Desk ................................................. 79
6.1 Call Forwarding/Do Not Disturb ................................................................. 80
6.2 Listening to Voice Mail Messages (when connected to the Panasonic
base unit only) ............................................................................................. 81
7 Using the Contacts ............................................................. 83
7.1 Using the Contacts ..................................................................................... 84
7.2 Using the Local Contacts ........................................................................... 86
7.2.1 Private Ring ............................................................................................... 86
7.2.2 Storing an Item in the Local Contacts ........................................................ 86
7.2.3 Editing a Stored Item in the Local Contacts ............................................... 89
7.2.4 Deleting a Stored Item in the Local Contacts ............................................ 90
7.2.5 Searching for an Item in the Local Contacts .............................................. 91
7.2.6 Locking the Local Contacts ........................................................................ 92
7.3 Using the Base Unit Contacts (when connected to a base unit other than
the Panasonic base unit only) ................................................................... 94
7.3.1 Storing an Item in the Base Unit Contacts ................................................. 94
7.3.2 Editing Stored Items in the Base Unit Contacts ......................................... 95
7.3.3 Deleting Stored Items in the Base Unit Contacts ....................................... 95
7.3.4 Searching for an Item in the Base Unit Contacts ....................................... 95
7.4 Using the Remote Contacts (when connected to the KX-TGP600 only) .....
97
7.4.1 Searching for an Item in the Remote Contacts .......................................... 97
7.5 Using the Shared Contacts (when connected to the KX-TGP700 only) ......
98
7.5.1 Searching for an Item in the Shared Contacts ........................................... 98
8 Customizing the Telephone ............................................... 99
Table of Contents
6

8.1 Customizing the Telephone ..................................................................... 100
8.1.1 Changing the Handset Number and Name Display ................................. 100
8.1.2 Hot Keys .................................................................................................. 100
8.1.3 Memo Alarm Setting ................................................................................ 102
8.1.4 Changing the Function Keys/Program Keys ............................................ 103
8.1.5 Changing the Handset Default Settings ................................................... 104
8.1.6 Changing the System Default Settings .................................................... 105
8.1.7 Referring the Status ................................................................................. 106
8.1.8 Changing the Call Service Default Settings ............................................. 106
8.1.9 Block Anonymous Calls (when connected to the Panasonic base unit only)
.................................................................................................................. 107
8.1.10 Incoming Call Barring (Caller ID service users only) ............................... 107
8.1.11 Making an Anonymous Call (when connected to the Panasonic base unit
only) ......................................................................................................... 108
8.1.12 Web User Interface Programming ........................................................... 108
9 Installation and Setup ....................................................... 111
9.1 Installation and Setup ............................................................................... 112
9.2 Connections ............................................................................................... 112
9.2.1 Battery Installation ................................................................................... 113
9.2.2 Attaching the Belt Clip .............................................................................. 114
9.2.3 Charging the Batteries ............................................................................. 114
9.2.4 Wall Mounting .......................................................................................... 115
9.3 Updating the Software .............................................................................. 116
9.3.1 Updating the Handset/Desk Phone Software .......................................... 116
9.4 Registering/Deregistering a Handset/Desk Phone to the Panasonic base
unit .............................................................................................................. 117
9.4.1 Registering a Handset/Desk Phone to the Panasonic base unit ............. 117
9.4.2 Deregistering a Handset/Desk Phone ...................................................... 118
9.4.3 Registering/Deregistering the Handset/Desk Phone to a Base Unit Other
than the Panasonic base unit ................................................................... 119
10 Appendix ........................................................................... 121
10.1 Appendix .................................................................................................... 122
10.1.1 Character Mode Table ............................................................................. 122
10.1.2 Character Table for Administrator Password ........................................... 124
10.1.3 Status Menu Layout (when connected to the Panasonic base unit) ........ 127
10.1.4 Phone Setting Menu Layout .................................................................... 129
10.1.5 System Setting Menu Layout (when connected to the Panasonic base unit)
.................................................................................................................. 144
10.1.6 System Setting Menu Layout (when connected to a base unit other than the
Panasonic base unit) ............................................................................... 150
10.1.7 Specifications ........................................................................................... 151
10.1.8 RF Specifications ..................................................................................... 152
10.1.9 Troubleshooting ....................................................................................... 154
10.1.10 Error Messages ....................................................................................... 158
Table of Contents
7

Table of Contents
8

Section 1
Important Information
9

1.1 Important Information
1.1.1 Data Security
• This telephone communicates using digital signals that are difficult to intercept.
However, it is possible that the signals could be intercepted by a third party.
• To avoid unauthorized access to this product:
–Keep the password (e.g., PIN for registration) secret.
–Change the default password.
–Set a password that is random and cannot be easily guessed.
–Change the password regularly.
• This product can store your private/confidential information. To protect your privacy/
confidentiality, we recommend that you erase the information such as the contacts or
call history from the memory before you dispose of, transfer or return the product, or
have the product repaired.
• Set the password when you register the handset/desk phone to the base unit.
• It is recommended that you lock the contacts or call history to prevent stored
information from being leaked when you carry the handset or if the handset is lost.
1.1 Important Information
10

1.2 For Users in European Countries
The following declaration is applicable to KX-TGP700CE/KX-TGP700UK/
KX-TPA70CE/KX-TPA70UK/KX-TPA73CE/KX-TPA73UK only
The DECT is abbreviation of the Digital Enhanced Cordless Telecommunications.
This device is a DECT operating in the frequency band of 1880 MHz to 1900 MHz.
The usage of this device is generally allowed in all EU countries.
Hereby, Panasonic Corporation declares that the radio equipment described in this
manual is in compliance with Directive 2014/53/EU.
The full text of the EU declaration of conformity is available at the following internet
address:
https://www.ptc.panasonic.eu/compliance-documents
Contact to Authorized Representative:
Panasonic Testing Center
Panasonic Marketing Europe GmbH
Winsbergring 15, 22525 Hamburg, Germany
Ecodesign information
Ecodesign information under EU Regulation (EC) No.1275/2008 amended by (EU)
Regulation No.801/2013.
The text of the ErP Free Web Product Information is available at the following internet
address:
https://www.ptc.panasonic.eu/compliance-documents
Power consumption in networked standby and guidance are mentioned in the web site
above.
1.3 For Users in the United Kingdom
• This unit is designed to be installed under controlled conditions of ambient temperature
and a relative humidity.
• Avoid installing the unit in damp or humid environments, such as bathrooms or
swimming pools.
• 999 can be dialed on the product after accessing the outside line for the purpose of
making outgoing calls to the BT emergency (999) service.
The method for accessing an outside line differs depending on the SIP server. For
details, confirm the features of the SIP server.
1.2 For Users in European Countries
11

1.4 For Users in Australia and the United Kingdom
• This unit is capable of being used in conjunction with hearing aids fitted
with inductive coil pick-ups. The handset should be held as for normal
conversation. For operation, the hearing aid should be set to its "T"
position or as directed in the operating instructions for the hearing aid.
• This unit is designed to aid the visually handicapped to locate dial keys
and buttons.
1.5 For Users in New Zealand
• This equipment shall not be set to make automatic calls to the Telecom ‘111’
Emergency Service.
PTC General Warning
• The grant of a Telepermit for any item of terminal equipment indicates only that
Telecom has accepted that the item complies with minimum conditions for connection
to its network. It indicates no endorsement of the product by Telecom, nor does it
provide any sort of warranty. Above all, it provides no assurance that any item will work
correctly in all respects with another item of Telepermitted equipment of a different
make or model, nor does it imply that any product is compatible with all of Telecom’s
network services.
The Use of IP Networks through the PSTN
• Internet Protocol (IP) by its nature introduces delay into speech signals as each data
packet is formulated and addressed. Telecom Access Standards recommends that
suppliers, designers and installers using this technology for calls to or from the PSTN
refer to ITU E Model requirements in the design of their networks. The overall aim is to
minimize delay, distortion and other transmission impairments, particularly for those
calls involving cellular and international networks, which already suffer extensive delay.
Echo cancellation
• Echo cancelers are not normally required in the Telecom PSTN because geographic
delays are acceptable where CPE return loss is maintained within Telepermit limits.
However, those private networks making use of Voice over IP technology are required
to provide echo cancellation for all voice calls. The combined effect of audio/VoIP
conversion delay and IP routing delay can cause the echo cancellation time of ≥ 64 ms
to be required.
Important Notice
• Under power failure conditions this appliance may not operate. Please ensure that a
separate telephone, not dependent on local power, is available for emergency use.
• No “111” or other calls can be made from this device during a mains power failure.
1.4 For Users in Australia and the United Kingdom
12

1.6 For Users in the United States
FCC Note
• This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following
measures:
–Reorient or relocate the receiving antenna.
–Increase the separation between the equipment and receiver.
–Connect the equipment to an outlet on a circuit different from that to which the
receiver is connected.
–Consult the dealer or an experienced radio/TV technician for help.
FCC CAUTION
Any changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate this product.
FCC RF Exposure Warning:
• This product complies with FCC radiation exposure limits set forth for an uncontrolled
environment.
• To comply with FCC RF exposure requirements, KX-TGP700 must be installed and
operated 20 cm (8 inches) or more between the product and persons' bodies.
• This product may not be collocated or operated in conjunction with any other antenna
or transmitter.
• The handset may be carried and operated with only the specific provided belt-clip.
Other non-tested belt-clips or similar conbody-worn accessories may not comply and
must be avoided.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions:
(1) this device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation.
1.6 For Users in the United States
13

FCC ID can be found inside the battery compartment (KX-TPA70/KX-TPA73) or on the
bottom of the units (KX-TGP700).
Privacy of communications may not be ensured when using this phone.
Hearing Aid Compatibility
This telephone provides magnetic coupling for hearing aids as defined by the FCC in 47
CFR Section 68.316. Use only handsets or other acoustic devices with this equipment
that are compliant with the hearing aid compatibility requirements of FCC Part 68.
When you hold the phone to your ear, noise might be heard in your Hearing Aid. Some
Hearing Aids are not adequately shielded from external RF (radio frequency) energy. If
noise occurs, use an optional headset accessory or the speakerphone option (if
applicable) when using this phone. Consult your audiologist or Hearing Aid manufacturer
about the availability of Hearing Aids which provide adequate shielding to RF energy
commonly emitted by digital devices.
Compliance with TIA-1083 standard:
T
Compatible with
Hearing Aid T-Coil
TIA-1083
Telephone handsets identified with this logo have reduced noise
and interference when used with T-Coil equipped hearing aids
and cochlear implants.
WHEN PROGRAMMING EMERGENCY NUMBERS AND/OR MAKING TEST CALLS
TO EMERGENCY NUMBERS:
1. Remain on the line and briefly explain to the dispatcher the reason for the call
before hanging up.
2. Perform such activities during off-peak hours, such as early morning or late
evening.
For Product Service
• Call 1 [phone] for the location of your nearest authorized service center.
• Panasonic’s e-mail address for customer inquiries:
[email protected]
For customers in the USA and Puerto Rico ONLY.
1.6 For Users in the United States
14

1.7 For Users in Canada
Innovation, Science and Economic Development Canada Notices and Other
Information
This product meets the applicable Innovation, Science and Economic Development
Canada technical specifications.
Note
• This device complies with Innovation, Science and Economic Development Canada
license-exempt RSS standard(s). Operation is subject to the following two conditions:
(1) this device may not cause interference, and (2) this device must accept any
interference, including interference that may cause undesired operation of the device.
• Privacy of communications may not be ensured when using this phone.
• Some wireless telephones operate at frequencies that may cause interference to
nearby TVs and VCRs. To minimize or prevent such interference, the wireless
telephone should not be placed near, or on top of, a TV or VCR. If interference is
experienced, move the wireless telephone farther away from the TV or VCR. This will
often reduce, or eliminate, interference.
• This transmitter must not be co-located or operated in conjunction with any other
antenna or transmitter.
• This Class B digital apparatus complies with Canadian ICES-003.
CAUTION
Any changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate this product.
1.7 For Users in Canada
15

RF Exposure Warning:
• This product complies with ISED radiation exposure limits set forth for an uncontrolled
environment.
• To comply with ISED RF exposure requirements, KX-TGP700 must be installed and
operated 20 cm (8 inches) or more between the product and persons’ bodies.
• This product may not be collocated or operated in conjunction with any other antenna
or transmitter.
• The handset may be carried and operated with only the specific provided belt-clip.
Other non-tested belt-clips or similar body-worn accessories may not comply and must
be avoided.
Compliance with TIA-1083 standard:
T
Compatible with
Hearing Aid T-Coil
TIA-1083
Telephone handsets identified with this logo have reduced noise
and interference when used with T-Coil equipped hearing aids
and cochlear implants.
1.7 For Users in Canada
16

1.8 For Best Performance
Operating Range
• The range of operation depends on the topography of your office, weather, or usage
conditions, because signals are transmitted between the base unit and the handset/
desk phone by radio waves.
• Normally, you get greater range outdoors than indoors. If there are obstacles such as
walls, noise may interfere with your telephone calls. In particular, high metal shelves or
reinforced concrete walls will restrict your operating range.
• A handset/desk phone may not work when it is too far from the base unit depending on
the structure of the building.
• We strongly suggest you hold the bottom half of the handset to ensure better call
quality. Because, the antenna is located in the upper half of the handset.
Noise
Occasional noise or interference may occur due to electromagnetic radiation from
objects such as refrigerators, microwave ovens, faxes, TVs, radios, or personal
computers. If noise disturbs your telephone calls, keep the handset/desk phone away
from these electrical appliances.
Environment
• Keep the product away from heating appliances and devices that generate electrical
noise, such as fluorescent lamps and motors. These noise sources can interfere with
performance of the product.
• Do not use the product in rooms where the temperature is less than 0 ℃ (32 ℉) or
greater than 40 ℃ (104 ℉).
• To avoid damage, charge the battery only in temperatures ranging from 5 ℃ (41 ℉) to
40 ℃ (104 ℉).
• Allow 10 cm (3–15/16 in) clearance around the product for proper ventilation.
• Avoid environments with excessive smoke, dust, moisture, mechanical vibration, shock,
or direct sunlight.
• The apparatus is designed to be installed and operated under controlled conditions of
ambient temperature and a relative humidity.
Routine Care
• Unplug the AC adaptor from the AC outlet and disconnect the Ethernet cable before
cleaning.
• Wipe the product with a soft cloth.
• Do not clean the product with abrasive powder or with chemical agents such as
benzine or thinner.
• Do not use liquid cleaners or aerosol cleaners.
1.8 For Best Performance
17

• Clean the terminal of the charger periodically.
Placement
• Do not place heavy objects on top of the product.
• Care should be taken so that objects do not fall onto, and liquids are not spilled into,
the product.
• Place the charger on a flat surface.
1.8 For Best Performance
18

1.9 Battery Information (KX-TPA70/KX-TPA73)
After batteries are fully charged (at 25 ℃ [77 ℉]):
Operation Operating Time
KX-TPA70 KX-TPA73
While Talking (Backlight off*1,
Narrowband Mode) Up to about 11 h Up to about 20 h
While Talking (Backlight on*2, Wideband
Mode) Up to about 8 h Up to about 7 h
While not in use (Standby) Up to about 200 h Up to about 400 h
*1 When the "Talking" setting of "Backlight" is set to "Off". For details, see Display Option,
page 138.
*2 When the "Talking" setting of "Backlight" is set to "On". For details, see Display Option,
page 138.
• Operating time may be shorter than listed above depending on usage conditions and
ambient temperature.
• The batteries will drain slowly even while the handset is turned off.
• The handset can receive calls while charging.
•Battery consumption increases when the handset is out of range (if " " flashes, turn
the handset off).
IMPORTANT
•Clean the handset and the charger contacts with a soft, dry cloth once a
month. Clean more often if the unit is subject to grease, dust or high humidity.
Otherwise the batteries may not charge properly.
Low Battery Warning
The batteries need to be charged in the following situations:
• The battery level indicator displays as empty (" ") and the alarm sounds*1.
• "Charge Battery" is displayed. In this situation, the handset cannot be operated.
*1 If the low battery warning occurs during a conversation, after 1 minute, the
conversation will be disconnected, and after 1 more minute, the handset will turn off.
Replacing the Batteries
If the battery level indicator displays as empty (" ") after using the phone for a short
time, even when the batteries have been fully charged, the batteries should be replaced.
1.9 Battery Information (KX-TPA70/KX-TPA73)
19

Before replacing the batteries, make sure the low battery warning is displayed, then turn
off the power to prevent memory loss. Replace the batteries and charge the new
batteries for about 6 hours (KX-TPA70)/3 hours (KX-TPA73).
If you replace the batteries before the low battery warning appears, the battery strength
icon may display an incorrect reading. In this case, use the handset as normal with the
new batteries installed.
When the low battery warning is displayed, charge the batteries for about 6 hours
(KX-TPA70)/3 hours (KX-TPA73). The battery strength icon will then display the correct
reading. To install the batteries, see 9.2.1 Battery Installation, page 113.
Note
• When replacing the batteries with fully charged batteries, turn on the handset once
with the power key ( ) before charging. If you don't turn on the power once before
charging, the battery indicator will not display correctly.
• There is a danger of explosion if the batteries are incorrectly replaced.
(For the United States and Canada only)
Nickel metal hydride batteries that are recyclable power the
product you have purchased. Please call 1-800-8-BATTERY for
information on how to recycle these batteries.
Important Notice Concerning the Correct Use and Charging of Ni-MH Batteries
(KX-TPA70 only)
Batteries, due to their construction, undergo some wear and tear. The lifetime of
batteries also depends on correct maintenance. Charging and discharging are the most
important factors. You should take notice of the following to maintain the life of the
batteries as long as possible.
Ni-MH batteries have a kind of memory, the "memory effect". If fully charged batteries
are used several times only for 15 minutes in the handset and then recharged, the
capacity of the batteries will be reduced to 15 minutes due to the memory effect.
Therefore you should discharge the batteries completely, i.e. use them in the handset
until the battery level indicator displays as empty (" "). Then recharge them as
described in the manual. After the memory effect has occurred, it is possible to achieve
almost complete capacity of the Ni-MH batteries by charging and discharging several
times one after another.
Ni-MH batteries can also self-discharge. This self-discharge depends on the ambient
temperature. At temperatures under 0 ℃ (32 ℉), the self-discharge will be the lowest.
High humidity and high temperatures support the self-discharge. Also long-term storage
will lead to self-discharge.
1.9 Battery Information (KX-TPA70/KX-TPA73)
20