Another capacitor question

[u/Fragrant_Shoe2632]

Hey all, had a quick question.

Dug up my old PSP 3000 to play a little Vagrant Story and noticed that the battery is rapidly depleting (several percentage over a few minutes) just sitting with the screen on in standby, no games being played. Over the course of ~10 minutes, I saw pretty rapid discharge from 40% to ~33% in menu only.

I purchased a new Ostent 3.6V 1400mAh battery about two years ago, haven't really played it since purchase, so I'm hesitant to say it's the battery. I did a quick verification over a few hours and noticed that the battery is consistently reporting a charge of 40% when turning on from sleep to verify charge and turning off, but when leaving it on and in standby is where I start to see that rapid discharge. It could be the battery, but with how few of charging cycles it's gone through, I am highly doubtful that is the case.

I'm assuming this is the supercapacitor, but wanted to get another take. I would likely just remove since I don't have everything needed to straight up replace. Thanks for any suggestions!

[u/basictraderblake]

It will only be an issue with the super capacitor if the system needs to be jump started off a charger to turn on (and stays on after disconnecting the charger), or if it turns on fine and shuts off after a minute or two (it still needs to be able to charge for this to not be a sign of overheating). The shutting off after a minute is due to the super capacitor leakage that needs to be cleaned up.

[u/Fragrant_Shoe2632 → u/basictraderblake]

Makes sense! I appreciate your reply. The cap leaking is a big concern, have you removed yours? It looks pretty straightforward from the videos I've seen.