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| + | [title] What battery? |
|---|---|
| + | [* black] Most, if not all of these kind of devices are powered by 1s LiPo battery, with 3.7v nominal voltage.So the safest replacement would be power source outputting 3.5-4.2V range. ~25mA power draw requirements is estimated from the original battery life. |
| + | [* black] I've chosen 14500 LiIon (LiMn flavor for more safety) for the upgrade. 3x AAA would also be an option if NiMH is your thing, but make sure not to use the internal charging mechanism if you choose the latter option! |
| + | [* black] A 14500 or AA battery holder will work for this, but some modifications may be needed as described in the following points: |
| + | [* black] (A) Add a blob of solder here, this will ensure it works with flat top 14500 batteries. |
| + | [* black] (B) Cover the top, bottom, and holes with epoxy glue, for more piece of safety. |
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