A doodle of a battery that says ‘My headphones announcing the battery level:’ with a tiny sliver of battery colored green and labeled ‘battery high’, the vast majority of it colored yellow and labeled ‘battery medium’, and another tiny portion colored red and labeled ‘battery low’
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[–] 10 points 4 months ago (1 child)

Are you using a rechargeable battery?

AA batteries are typically 1.5V, but some rechargeable ones are only 1.2V. This leads to the product thinking the battery is always low even when it's fully charged.

If you have a Li-ion rechargeable, you get the opposite problem. The battery is actually around 2.7V, and has a converter internally to step it down to 1.5V. You will keep getting 1.5V until the battery goes flat with no warning.

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