L5 USB Car Chargers

[fralb5]

The USB 2.0 specs limit to 500ma, but if your charger can do more, the Librem 5 internal charger can go up to a 3.25A limit

But you will have to set up manually, with the following command line

[MyL5] Received my Librem 5 (Evergreen)

Yes, you could do that already before as well: sudo i2cset -f -y 3 0x6a 0x00 <VALUE> where <VALUE> is between 0x00 (100mA) and 0x3f (3.25A). See https://www.ti.com/lit/ds/symlink/bq25895.pdf page 32. You can verify the currently set value with cat /sys/class/power_supply/bq25890-charger/input_current_limit This is also useful to set input current limit to a higher value than the default 500mA when using USB-A chargers.

But be extra careful with this command, you can break your stuff with it, here some recommandations

[MyL5] Received my Librem 5 (Evergreen)

I would issue a WARNING here for anyone tempted: BE extra careful with this kind of command, before using it : if it’s connected to a charger or powerbank, check its capabilities (ex: 5V ⎓ 2A) if it’s connected to a device USB port, what kind is it ? [image] Double, triple check the command line before validation It’s safe to put a lower value than the one already set if you want to put a higher value you have to understand what you are doing /!\ Do not use if you are not sure of what you…

I suggest you to go check this thread, there some others interesting stuff about it

Also remember that the optimization of power consumption is a work in progress, it will get better with time (and updates)