66.235.15.173: Migrated reply #5485

2025-01-21T11:06:57Z

Migrated reply #5485

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On my x1202, driving GPIO16 high, the charging LED stops blinking (so the pogo pin is making contact with HW pin 36), but the actual charging doesn't stop.

I have tried with the pin set as input with both "pull up" and "pull down", and with the pin set as output and driving it high vs low. Pulled high or driven high, the CHG LED stops blinking, but ... battery volts continue increasing until ~4.15V.

Overall, I'm not sure if turning the charger on and off to zig-zag near a lower voltage is actually less hard on the batteries than hovering near 4.15V without the zig-zag. The former option puts cycles on the battery, while the latter doesn't. So at this point I'm not really sure if I would use this CHG disable feature, but I'm still wondering if it can be made to work, in case I or anyone else needs it.

If anyone has found a solution that actually stops charging the batteries under control of the pi 5 (even if weird / soldering iron involved / fly wire involved), please post.

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66.235.15.173: Migrated reply #5485