Modify expected battery capacity (charge larger capacity then original)

opeller

Member
Nov 19, 2012
45
5
28
(TL;DR at end)
Hello,
I have been comparing aftermarket batteries with larger capacitys then the original battery (findings will be shared when finished testing).
I have come across a problem where the phone shows 100% charge on a larger capacity battery, when not actually full (does charge till actually full, but shows 100% for large part of it).

Looking for -
help to somehow fix this. Show actual larger battery charge precentege. I'm hoping this is something we can change, as in expected battery capacity, software.

Avidance -
1. Charging while off, indication of fully charged (screen changes from 100% & charging icon to ✓ icon), only after around another 1.25 hours of charging [for the original battery, this takes around 25 minutes].
2. When off and showing charging 100% icon - larger capacity battery at 3.87V. Reaching ✓ icon - battery at 4.2V (measuring with physical externel tools).

Etc.
[Seems larger capacity is being used when discharging truly fully charged larger battery (lasted in test up to 1.3 hours more then original).]
3T, OOS 9.0.6, rooted, Xposed
Example from different phone (needed file to mod not on 3T) - https://forum.xda-developers.com/s7-edge/help/mod-aftermarket-misreading-battery-t3510597


I'd really appriciate some help on the matter.
When finished with my research, I'll post my findings (looks promising - found up to 30% increase in battery life!)

TL;DR - Testing larger capacity batteries. Problem of them reaching 100% when there is more charging to do. Phone charges what's left, but shows 100% all the while. Looking for a fix.
 
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