WeTech WTC644 User manual

© WEMPE Elektronic GmbH, Revision date: 05.01.2021 Made in Germany
USER MANUAL
WTC644
Article number: 600044
Thank you for purchasing a WeTech® product. This user manual contains important safety
and operating instructions for your Passiv charger. Before using your charger, read this
manual and all warning instructions with care in order to avoid possible danger.
This product is suitable for the charging of MOTOROLA GP344, GP388 and DP3441 radio
units with PMNN4074A, PMNN4073A, JMNN4023A, PMNN4440AR, PMNN4202AR and
PMNN4502A rechargeable batteries.

2 Made in Germany
Safety instructions
1. Installation and the first start of the system should only be carried out by qualified
technicians. When installed in a vehicle, the installation specifications of the vehicle
manufacturer apply. Fasten the unit only in the interior of the vehicle.
2. The fastening material included in delivery is recommended for proper installation.
3. The use of rechargeable batteries not explicitly listed in this document may lead to fire.
4. The contacts of the product should be cleaned at regular intervals with a dry cloth.
Under no circumstances should you use water or other liquids.
Scope of delivery
The following items are included in the scope of delivery:
1. Passiv-Charger WTC644
1. Holding bracket for WTC644
2. Passive accessory set
Start of the system
Passive accessory set
1. Connect the strands (1) of the DC cable provided to mains power. Be sure that the
approved working voltage and polarity are used.
2. Mount the included holding bracket in a suitable place in the vehicle. Mounting screws
for the holding bracket are not included in the scope of delivery and must be purchased
separately.
3. Fasten the charger to the holding bracket using the four knurled screws (4).
4. Insert the hollow plug (3) of the DC cable into socket (C) of the charger.
5. Secure the connection using the cable tie (5)
Instructions: The DC cable includes a fuse holder (2) whose fuse will be destroyed in case
of excess current. You can find information about replacement fuses in the technical data.

© WEMPE Elektronic GmbH 3
Functions
The charging bracket is used for quick charging and maintaining charge. The table below
provides information about the function of the displays and the connections of the unit.
Pos.
Designation
Status
Description
A
Green LED
on
Battery detected.
off
Battery not detected. Contact with the radio unit
may not have been established properly.
B
Red LED
on
Quick charging active. Battery capacity under
80%
off
Quick charging inactive. Battery capacity over
80%
C
DC socket
DC socket for power supply voltage in
accordance with the technical data.
Schematic drawing WTC644

4 Made in Germany
Technical data
Designation
Value
Working voltage
10,8V ... 31,2V
Output voltage
8,4V / 9,1V
Output current
max. 800mA
Fuse
Littelfuse, 0297002, 2A, 32V
Degree of
protection
IP20
Measurements
65 x 112 x 42 mm
Weight
239g
Additional instructions
e1 type approval
The e1 type approval from the German Federal Motor Vehicle and Transport Authority confirms that this
product is in compliance with the EMC regulations for motor vehicles. Devices with this type approval may
therefore be mounted in vehicles without affecting the vehicle's operational permit.
CE conformity declaration
For this product, we confirm that it meets the requirements set forth in the Directive of the Council for
Conformity of Legal Regulations of Member States regarding Electromagnetic Compatibility. This declaration
applies to all units manufactured in accordance with the production drawings included as a component of this
declaration.
WEEE (this symbol applies only in the European Union)
This symbol indicates that the product so labelled may not be disposed of with normal household waste. If you
want to dispose of this product, obey the corresponding national laws and regulations in your country or
community. The correct disposal of this product supports environmental protection and prevents possible
damage to the environment and human health.
Contact
This product was manufactured in Germany by:
WEMPE Elektronic GmbH phone: [phone]
Leinenweberstr. 6 fax: [phone]
DE-36251 Bad Hersfeld website: www.wetech.de
e-mail: [email protected]