4. Periodic Maintenance
4.1 Periodic Cable Check
Periodically perform a cable check:
1. Ensure that the cables have not loosened. Use a wrench or socket to tighten any connections or
terminals that have come loose.
2. Ensure that no wires have pinched or frayed; especially the balance wires.
4.2. Periodic Voltage Check
If the battery pack has gone unused for more than 6-12 months, it is recommended to check the cell voltages
with a multimeter. If they are low, charge the battery pack until the voltages are around 50-80%.
Use the iPhone / Android app and the bluetooth module to ensure that the cell voltages are not different by
more than XXXX millivolts when fully charged. If the cells are off by more than a few millivolts, first verify with
an external voltmeter. If the voltmeter doesn’t agree, then the BMS may need calibration (follow the steps in
Section 4). Otherwise, a top-balance might be necessary to bring them closer together. See Section 2.3 for
the top-balancing procedure.
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