3ds turns on abruptly

[Skilony]

I replaced the battery with my old Nintendo 3ds and now when that it's down to 39% +/- it goes sharply to 1%, and after a couple of seconds the fullness turns off.
Can someone help please?

 

[Superboom12s]

I would just say your problem is just that the battery is nearly dead or in a very bad condition.

This is really common with cheap chinese batteries from sites like Aliexpress or Temu, those are usually used batteries that otherwise would be trashed, but instead vendors make this scam to sell batteries.

You should buy another (better) battery, but if you have any doubts, you could try another working battery to see how it performs (if possible).

You could also share a log of the battery benchmark program.

 

[k66]

Try changing the battery.
These ‘second-hand’ or 'new' batteries were manufactured over ten years, as old as your 3DS, and are probably bad.

 

[splaca]

I replaced the battery with my old Nintendo 3ds and now when that it's down to 39% +/- it goes sharply to 1%, and after a couple of seconds the fullness turns off.
Can someone help please?

How many recharge cycles have you used it for? Sometimes new batteries behave weirdly in the first few uses. You could run Battery Mark to check some stats. Likely it's simply a bad/old battery as others have said, though.

 

[Skilony]

How many recharge cycles have you used it for? Sometimes new batteries behave weirdly in the first few uses. You could run Battery Mark to check some stats. Likely it's simply a bad/old battery as others have said, though.

No more than 10 times on a new battery, but I think yes, the problem is in the battery itself

Post automatically merged: Jan 29, 2026

I would just say your problem is just that the battery is nearly dead or in a very bad condition.

This is really common with cheap chinese batteries from sites like Aliexpress or Temu, those are usually used batteries that otherwise would be trashed, but instead vendors make this scam to sell batteries.

You should buy another (better) battery, but if you have any doubts, you could try another working battery to see how it performs (if possible).

You could also share a log of the battery benchmark program.

Thank you