questions regarding dell xx327 laptop battery

[ipatch]

hello, i stumbled upon this repo from reading your blog post about hacking your laptop battery. i have a dell latitude e4300 laptop. the laptop will no longer run on battery power, and if i remove the power cord the laptop will die (shutdown/hibernate).

i disassembled the xx327 battery pack in hopes of replacing the 6 six 18650 cells inside the battery pack to prolong the life of the laptop.

however, if replace the cells with new samsung cells i purchased, will i have to use this software to reset any of the info in the BMS attached to the pack? or should i be good to go in just replacing the cells? (please forgive my ignorance, i just started reading about this a couple of hours ago).

also the circuit board in my battery is a bit different than the one shown in your blog post. however i believe it contains the same ICs.

as i was able to read some of the letters on one of the larger ICs on the BMS.

29330

attached below is a picture of the cells inside my battery pack and a crude picture of the BMS.

thanks for all your work, and making it publicly available. 🙏

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[laszlodaniel]

The hack on the BQ8050 wasn't finished entirely. Some parameters need changing in the controller after replacing the cells but I couldn't pass through its security with the conventional methods. I think it's better if you just buy a new aftermarket battery pack. I did the same after a while. It's a fun project to have but don't take it too seriously.