UDS-KPM-094-01B-2
17
Hole for Voltage
Measurement
Figure 9. Placement of Batteries (Cells) in Module
The battery voltage will decrease gradually during storage. Perform auxiliary charging as
necessary to maintain the module voltage at 2.75 V.
WARNING: If the battery voltage lowers to 2.75 V or less, the battery is being
over-discharged. Charging an over-discharged battery could cause the module to
heat-up, ignite and/or explode. Stop using the battery module and contact us once
it is over discharged.
Auxiliary Charging Method of Battery Module
(1) For auxiliary charging, use the charger
with “constant current/constant voltage (CCCV)”
function and
“Over Voltage Protection (OVP)” function.
(2) Set the Over Voltage Protection (OVP) to 49.2 V (4.10 V / battery).
(3) Set the constant current (current drooping) to 50 A or less.
(4) Set the output voltage to 45.6 V (3.80 V / battery).
(5) When the value still remains within the constant
current value (CC) even after charged for the time
shown in the table below, stop charging and contact us.
* Put a higher priority on the specified auxiliary charging
method for the system at the delivery destination, if any.
Figure 8. Battery Voltage Measurement Method
Charging
current
Approx.
charging time
50 A
1 hour
25 A
2 hours
10 A
5 hours
cell1
cell2
cell3
cell6
cell5
cell4
cell7
cell12
cell8
cell9
cell10
cell11