Battery life on Roller Shade Driver E1 not as good anymore – can it be replaced successfully?

Hi everyone,
I’ve had the Aqara Roller Shade Driver E1 for some years now, and when it was new the battery lasted much longer. Recently I’ve noticed that I need to charge it much more often.

I tried a spare battery with the same specs, but it doesn’t seem to charge.

Has anyone been successful in finding a working replacement battery, or is keeping it plugged in via USB-C the only option once the original battery gets weak?
Thanks in advance!

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Hi , unfortunately the E1 roller shade driver is not built to replace the battery :confused:
But sure it will be possible for an advanced electrician to replace it - but getting the right battery might be difficult. But at all I would avoid this