Hardware How to properly calibrate replacement 3DS battery?

[SimonDaDigger]

I swapped my old N3DS battery with a new one from Ifixit since the old on was swelling pretty noticeably, and it's working great, lasts a good long while (I'd say 5 hours doing intensive things), but there's one small annoyance, at about the ~hour and a half mark give or take I get the flashing red indicator, but the battery keeps chugging on like there's no issue. I'm assuming I need to calibrate it, but what's the proper way to do that? Letting it go until it died once hasn't fixed it (It may not have been fully dead, just shut off once. I know sometimes it can turn back in for a few seconds). Do I just gotta keep at it?

Worst case I can manage, I'm getting the expected times. It's just annoying lol

EDIT: I FORGOT TO FINISH THE DANG TITLE.

EDIT 2: Thank you mods for fixing the title

 

[KleinesSinchen]

As far as I know the 3DS has no "smart battery", or "energy meter" or "coulomb counter" but estimates charge level from voltage. Slightly different chemistry will result in slightly different discharge curve.

Please do not regularly discharge li-ion to 0% -- it puts great stress on the cell.

I've encountered the problem once that a fully charged know good battery resulted in red blinking after playing a few minutes. Removing the battery for a minute fixed it. I never found out what happened.

 

[master801]

https://www.cameronsino.com/usermanual.html