How does the Vita check battery levels?

[Deleted member 42501]

Looking at those battery mods and they seem great apart from the fact that the Vita will under report the charge level. That makes it all kind of pointless as you've got to turn it on and off to make it read the level again correctly as its expecting standard amperage levels.

Remember a similar glitch on PS3 controller battery mods and was wondering if there is a way to fix this using a plugin or similar? Theoretically it should be quite a simple fix as its just a case of editing the to and from variable range it uses to check remaining voltage. Anyone looked into it?

Maybe then we can download some more RAM and get that PS5 emulator thats in private Beta working properly as well.

 

[godreborn]

I don't know for sure, but the back of the battery compartment for a 360 controller has six slits, 2 are for charging, 2 are for depleting, and 2 measure battery levels. I don't know if that's the way most things are or not or something similar.

 

[Deleted member 42501]

Its got to be software based because its looking for certain levels its expects to find. When there is a larger battery it just turns it off, irrespective of fill level. If you turn the Vita off and back on however it forces a recheck that re-calibrates the battery level.

Must be software based going off that and something that can possibly be remotely triggered to get a more accurate read? I really like the Switch Lite battery mod above.

 

[godreborn]

Its got to be software based because its looking for certain levels its expects to find. When there is a larger battery it just turns it off, irrespective of fill level. If you turn the Vita off and back on however it forces a recheck that re-calibrates the battery level.

Must be software based going off that and something that can possibly be remotely triggered to get a more accurate read? I really like the Switch Lite battery mod above.

well, if it is, it's almost certainly in the os0, which I wouldn't mess with.

 

[Deleted member 42501]

Yeah, os0 can be an easy way to get to Brick City.

What I was thinking was making that new app (name escapes me) that sits in the Home menu with extra features to call the function from os0. Other idea was calling an edited version of whichever skprx from the MS but unsure how feasible that is. Has it been fully decrypted?

Potentially great mod once this software glitch is corrected.

 

[godreborn]

another option, if it's calibrated somehow, is the registry in vd0. I don't know if it's in there, but there's a registry editor you can install, just be careful. though, I don't think you can do anything to brick with it, because the registry should just be rebuilt if it's corrupted.

 

[Deleted member 42501]

Thanks, I'll check that. Theoretically it should be possible and would make the battery mod much more feasible.

The fact it checks on powering off and on again along with the charger being plugged in offers hints about how to proceed.

Vita is a SP65M Li-ion 2210mAh 3.7V 8.2Wh and Switch Lite is HDH-003 Li-ion 3570mAh 3.8V 13.6Wh. Great upgrade and plus only an additional 10 grams weight. Also battery quality and durability is assured as its Nintendo and not those cheapo Lipos.

More info for those who don't know about this mod:

 

[godreborn]

Thanks, I'll check that. Theoretically it should be possible and would make the battery mod much more feasible.

The fact it checks on powering off and on again along with the charger being plugged in offers hints about how to proceed.

Vita is a SP65M Li-ion 2210mAh 3.7V 8.2Wh and Switch Lite is HDH-003 Li-ion 3570mAh 3.8V 13.6Wh. Great upgrade and plus only an additional 10 grams weight. Also battery quality and durability is assured as its Nintendo and not those cheapo Lipos.

More info for those who don't know about this mod:

Never opened either console, been playing dragon quest Xi, but the bonus final boss kicks my ass even with everyone on level 99. :-/

 

[Deleted member 42501]

Looking at this:

https://github.com/SKGleba/PSP2-batteryFixer

and it may be an interesting resource to use for someone looking into this.