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shepgoba/yeet.c

Last active July 13, 2023 14:06
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actual battery health algorithm as of ios 13.3
Raw
yeet.c
//requires: com.apple.private.iokit.batterydata entitlement
extern "C"
CFArrayRef IOPSCopyPowerSourcesByType(int type);
int healthPercent;
NSArray *sources = (__bridge NSArray *)IOPSCopyPowerSourcesByType(1);
NSDictionary *batteryDict = sources[0];
if (sources && sources.count && batteryDict[@"Maximum Capacity Percent"]) {
healthPercent = [batteryDict[@"Maximum Capacity Percent"] intValue];
} else {
healthPercent = -1;
}
double constraintedHealthPercent = fmax(fmin(healthPercent / 100.0, 1.0), 0.0) * 100;
int finalPercent = (int)constraintedHealthPercent;
NSLog(@"correctedHealthPercent: %i", finalPercent);
@RedenticDev
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returns '0 %' for me, iOS 13.7

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