Endura TWC1M User manual

User Manual
MODEL TWC1M
FOR IN-VEHICLE USE
Single Unit Rapid Charger

1
Introduction
Thank you for purchasing an ENDURA™ TWC1M, Single Unit Rapid Charger.
This high quality product is designed for charging two-way radio batteries in
a vehicle. With the appropriate charging pod installed, it can charge these
types of batteries: lithium ion (Li-Ion), lithium polymer (LiPo), nickel-metal
hydride (NiMH), or nickel cadmium (NiCd).
For a complete list of charging pods available for this charger, contact your
Power Products dealer or call customer service at 800-529-1618.
ENDURA™ TWC1M Features
1. Mounting bracket.
2. Adjustable tie-down strap.
3. Charge status LED.
4. Charge status LED
reference chart.
5. Removable charging pod.
6. Vehicle power adapter –
supplies power from a
12V – 24V outlet in
your vehicle.
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5
1
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6

2
Important
1. Read all Caution statements below and this User Manual before attempting
to charge a battery.
2. Check to make sure a charging pod compatible with your battery is properly
installed on charger before placing battery in pod.
3. Always charge new batteries completely before initial use. Recycle batteries
when they can no longer be used. Do not discard unwanted batteries in the
trash or incinerate. Batteries exposed to fire or excessive heat may explode
4. For best battery performance, charge NiCd and NiMH batteries when they
are fully discharged.
Caution
1. Never charge alkaline or dry cell batteries with this charger. They may
burst and cause damage or personal injury.
2. Do not charge Li-Ion, LiPo, NiMH, or NiCd batteries unless they are designed
with overcharge protection.
3. Use charger inside a vehicle only. Do not expose the charger to rain, any
liquids, or excessive moisture.
4. Do not attempt to charge a battery without first installing the appropriate charg-
ing pod. Use only charging pods designed for the TWC1M. Disconnect charger
from power before installing, adjusting, or removing the charging pod.
5. Make sure contacts in charging pod and battery are clean. Do not allow
wire or metal objects to touch contacts in charging pod or any internal
part of the charger.
6. Do not remove the charger’s housing or make any modification to the charger.
7. Use only the vehicle power adapter supplied with the TWC1M charger.
If a replacement is required, order part number TWC1-VPA (standard) or
TWC6M-VPA (heavy duty). Use of other vehicle power adapters may damage
the charger or batteries you attempt to charge.

3
Installing ENDURA TWC1M
1. Install TWC1M in an area of the vehicle that is in close proximity to a
12V or 24V outlet. The location selected should allow the vehicle power
adapter to be connected without excessive stretching of the cable.
2. Select a flat vertical surface in the vehicle for attaching the mounting
bracket. Use the 4 sheet metal screws provided to fasten the smaller sec-
tion of the bracket to the vehicle. Install the mounting bracket securely
and in a manner that allows the larger section of the bracket to be level.
(Width of smaller section is about 2.6” and width of larger section is 4.2”).
3. After the mounting bracket is installed, fasten TWC1M to the bracket us-
ing the 4 brass thumb screws provided. If required, install the charging
pod in TWC1M before attaching the charger to the mounting bracket. See
section Replacing A Charging Pod below.
4. An elastic type tie-down strap is included with TWC1M. The strap is ad-
justable to hold radios of different heights securely in the charger.
5. To adjust the tie-down strap, place the radio in the charger, bring
the strap over the top of the radio, and insert the plastic clip into
the metal clip holder on the front of the charger. A clicking sound
confirms the clip is properly connected. At the back of the char-
ger, compress the black retaining clip and pull the end of the tie-
down strap through the retaining clip until it is snug over the radio.
Note: It may be easier to adjust the tie-down strap before the TWC1M is
installed on the mounting bracket.
6. To remove a radio secured with the tie-down strap, press the sides of
the plastic clip with your thumb and forefinger and lift the tie-down strap.

4
Replacing A Charging Pod
The charging pod is made from quality materials and designed to provide
years of service when properly used. In most cases, the charging pod will
only be replaced when you want to use the charger with a different battery.
Follow these steps to change the charging pod:
1. Obtain a charging pod made specifically for the TWC1M. Confirm that the
charging pod is compatible with the battery you want to charge.
2. Unplug the vehicle power adaptor (DC power supply) from TWC1M and
remove the radio from the charging pod.
3. Turn the locking screw on the bottom of the charging pod counter-clock-
wise several rotations. Lift the charging pod from the charging base.
4. Insert the replacement charging pod into the charging base and secure
with the locking screw. Do not over tighten the screw.
5. Inspect the charging contacts to ensure they are clean and unobstructed.
6. Connect the vehicle power adapter to TWC1M. You are now ready to
charge a battery compatible with the charging pod.
Charging A Battery
Before charging a battery confirm that the charging pod installed in TWC1M
and the battery you want to charge are compatible.
1. Connect the large plug end of the vehicle power adapter to the 12V or 24V
DC outlet in your vehicle and the small end to the connection point on the
right side of the charger.
2. Place battery to be charged in the charging pod. The battery may also be
charged while attached to the radio.
3. When a battery is placed in the charging pod, the charge status LED will
illuminate ORANGE for a short period while the charger performs a bat-
tery diagnostic. If the LED does not illuminate, check to make sure the