LiFePO4 Troubleshooting FAQ

The faults owners actually hit, and what each one points to.

Ask a technical question

The faults owners actually hit, and what each one points to.

Charging faults and BMS cut-offs

Most cut-offs are cell imbalance, temperature, or a charger set outside the pack window. Read the log before replacing anything.

Capacity loss, swelling and warranty claims

Gradual capacity loss is ageing; swelling is a failure. Stop using a swollen pack and start a claim.

Questions

Short answers to the ones that come up most.

Why does my battery stop charging early?

Usually a cell imbalance, a temperature limit or a charger set below the pack voltage. The BMS log names the reason.

Why has my capacity dropped?

Normal ageing, or a habit: sitting at 100% in the heat. Check the delivered capacity against the specification.

What should I do with a swollen battery?

Stop using and charging it, isolate it, and replace it — swelling means gas inside the case.

LiFePO4 battery knowledge · All Redway guides

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