# Battery Not Charging — What to Check First

> Work from the wall socket forward: outlet, charger, charge port, pack. Stop when you find the break.
>
> **Applies to:** D-series and eBikes

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<sub>*CEMOTO Battery Not Charging? What Would You Check First?* — if the player does not load, [open the video on YouTube](https://www.youtube.com/watch?v=gJNUfzxegNM).</sub>

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## Check in this order

**Work from the wall outward.** Each step rules out one link in the chain.

1. **The wall socket.** Test it with something else. Obvious, and regularly the answer.
2. **The charger.** Does its indicator light come on? Feel whether it warms up. A charger that stays completely cold is a suspect. Confirm the price and voltage on [Spare Parts](https://help.cemotoride.com/link/382) before ordering.
3. **The charge port on the bike.** Look for bent pins, corrosion, debris or water ingress. Reseat the plug firmly and check it is fully home.
4. **The charge fuse.** Many packs have an inline fuse on the charge circuit. Check it before condemning anything.
5. **The pack's own connector.** Reseat the main battery connector and look for heat discoloration — a high-resistance connection prevents charge current reaching the cells.
6. **Try a slow charge and watch.** If the pack is deeply discharged, some chargers will not start a normal charge cycle.
7. **Temperature.** Charging a very cold pack can be blocked by the BMS. Let it come to room temperature before retrying.
8. **Only then suspect the pack.** See [Battery Care & Charging](https://help.cemotoride.com/link/321).

> ⚠ **Never use a charger that is not rated for your pack's voltage.** A 72V charger on a 48V pack will damage it. Confirm voltage before ordering a replacement.

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## Decision guide

| Finding | Action |
| --- | --- |
| Socket dead | Use another outlet |
| Charger cold and dark | Replace the charger — confirm voltage first |
| Charge port damaged or wet | Clean and dry; replace if pins are bent |
| Charge fuse blown | Replace the fuse and investigate why it blew |
| Pack cold | Allow it to reach room temperature |
| Everything checks out | Contact [Support](https://help.cemotoride.com/link/378) before replacing the pack |

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## Related

- [Charging Faults](https://help.cemotoride.com/link/329)
- [Battery Care & Charging](https://help.cemotoride.com/link/321)
- [Low Voltage Error E06](https://help.cemotoride.com/link/359)
- [Spare Parts & Compatibility](https://help.cemotoride.com/link/382)
- [Tutorials Index](https://help.cemotoride.com/link/393)