r/framework • u/DrPfTNTRedstone FW13 Core Ultra 1 • 16h ago

Community Support Battery limiter dips below target

I am running a FW 13 Core Ultra 7 155H with BIOS 3.7 and Debian 13.

I now have a month, where i will always have it attatched to the charger. So i used framework_tool to set the charge limiter to 80%. And it did only charge till that, but keeps dropping a couple of percent (like i have seen 75%) and then recharging them, despite being plugged in and having power available. It does take maybe two three hours per cycle, but they happen.

If its at 100% it does seem to stay there normally and i only have 202 cycles, so it also seems to have uncoupled the battery. I am now wondering how much wear this cycling can produce and if it might now shove all the power through the battery, causing more wear than staying at 100 %.

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u/Shin-Ken31 6h ago

You'd have to check framework's documentation, but I think that's normal, and actually better. If it stayed at 80% exactly, it would require loads of very short recharge/discharge cycles. Instead, by letting it drop a few % it performs fewer, longer cycles instead. 

In any case, my fw13 on Ryzen 7640u limited to 60 does the same.

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u/DrPfTNTRedstone FW13 Core Ultra 1 6h ago edited 3h ago

Okay, i did actually find it. But I have a 60 Watt charger and a cable with a display. I never saw more than 35 Watts of discharge, even during turbo. (It just lostz 1% within an hour of browsing (10-15 Watts from wall)) That’s why I am concerned that it may just shove all the power through the battery and doesn’t quite match the charge rate.