Charging - Varta CoinPower CP 1654 A4 Technical Handbook

COINPOWER | CHARGING AND DISCHARGING

3.1 Charging

Applicable for CP1654, CP1454, CP1254,
CP1240, CP1250
The CoinPower A4-Version can be charged with
different charging rates and procedures. In order to find
the best solution for the various applications please see
the different options below. For more information please
consult your Key Account Manager.
Standard Charging
The CoinPower A4-Version can be standard charged
with a maximum C-Rate of 0.5C over the entire
temperature range between 0 º C and 45 º C. The charging
procedure must be Constant-Current Constant-Voltage
(CCCV).
Fast Charging
The CoinPower A4-Version can be fast charged with
a maximum C-Rate of 1C over the entire temperature
range between 0 º C and 45 º C. The charging procedure
must be Constant-Current Constant-Voltage (CCCV).
For this charging procedure the performance stated
in the datasheet regarding capacity and cycle life
may decrease.
Charging Procedures Comparison
An overview about the different charging procedures with the related
time and charged capacity can be found in the table below.
Charged Capacity
Standard Charge (0.5C)
Fast Charge (1C)
Rapid Charge (2C // 4.0 V - 0.5C // 4.3 V)
Data may vary due to temperature, age of cell and accuracy of voltage and current.
Rapid Charging
Furthermore the A4-Version can be rapid charged with
a two-step procedure: A charging rate of 2C can be
applied up to max. 4.0 V, then continue with standard
rate of 0.5C or fast rate of 1C until 4.3 V. The charging
voltages should be controlled within tolerances of ± 50
mV. The charging procedure must be Constant-Current
Constant-Voltage (CCCV) as well. The temperature
range for the CC phase at 2C rate must be between
20 ° C and 45 ° C. For this charging procedure the
performance stated in the datasheet regarding capacity
and cycle life may decrease.
25 % 50 % 75 %
35 min 60 min 90 min
15 min 30 min 45 min
8 min 12 min 45 min
100 %
166 min
135 min
130 min
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