Charger Troubleshooting or Replacement

If your battery is fine but won't charge, the charger itself may be the problem. We test the charger's output and replace it with the correct voltage and connector when it's faulty.

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Common causes

Charger with no output despite power
Wrong voltage or amperage charger used
Damaged charger cable or DC plug
Overheating charger shutting down
Fan or internal component failure
Charger light stuck on green or off

Frequently asked questions

How can I tell if my charger or my battery is bad?

We measure the charger's output voltage. If it's low or zero with the battery known good, the charger needs replacing.

Can I use any charger with the same plug?

No - the voltage and current must match your battery and BMS. The wrong charger can damage the pack or be unsafe.

How it works

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