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Title: A20-SOM with Li-Ion without BMS protection?
Post by: mavstuff on June 29, 2024, 11:48:54 PM

Hi guys!
Can one use Olimex A20-SOM board with bare Li-Ion battery without BMS protection board?
I believe AXP209 onboard controller is kind of BMS protection by itself.
Any thoughts about this? Thank you

Title: Re: A20-SOM with Li-Ion without BMS protection?
Post by: LubOlimex on July 01, 2024, 08:52:09 AM

It is not a good idea. My experience shows that it is dangerous. Most Li-Po batteries should have some sort of undervoltage or overvoltage protection (unless you stripped it). Here is a battery controller (stripped from one of our Li-Po batteries):

(https://i.imgur.com/jvNybJa.jpeg)

When picking a battery consider something like these (in some of the pictures you can see the controller):

https://www.olimex.com/Products/Power/Lipo-battery/

Title: Re: A20-SOM with Li-Ion without BMS protection?
Post by: mavstuff on July 01, 2024, 06:05:58 PM

Thanks for the information. I am using external 7A BMS curcuit currently

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OLinuXino Android / Linux boards and System On Modules => A20 => Topic started by: mavstuff on June 29, 2024, 11:48:54 PM