Thingy91X battery over discharge, can't recharge

RE: Thingy91X battery over discharge, can't recharge

Jayant Tang — Mon, 01 Jul 2024 07:24:34 GMT

Hi,

I don't have the source code of this firmware, so I couldn't know the register value...

But now I can charge the battery by nPM1300EK.

Thanks for your information.'

Best regards,

Jayant

RE: Thingy91X battery over discharge, can't recharge

Jared — Mon, 24 Jun 2024 11:21:06 GMT

Hi,

Are you able to connect a debugger to the Thingy 91 and read out the BCHGENABLESET register?

regards

Jared

RE: Thingy91X battery over discharge, can't recharge

Jayant Tang — Mon, 24 Jun 2024 09:43:07 GMT

Hi,

I modified the firmware. The firmware is from Wirepas for DECT NR+.

Is there anyway to let me charge them again?

Regards,

Jayant

RE: Thingy91X battery over discharge, can't recharge

Jared — Mon, 24 Jun 2024 09:10:23 GMT

Hi there,

Have you modified the fw on the Thingy91X?

For the Thingy to charge, the BCHGENABLESET register on the nPM1300 has to be set. If the modified fw does not set this register, then it would explain why it doesn't charge. Can you double check that the ENABLECHARGING bit in the BCHGENABLESET register has been set?

regards

Jared