Lidl Parkside 12V Power Tool Battery Stripdown - Very Revealing

JLCPCB Prototype for $2(Any Color): https://jlcpcb.com

Stripdown of some cheap Lidl Parkside 12V power tool batteries (with 30% off the marked price). The 2Ah contains three 2,000mAh cells and the 4Ah has 6 cells. These batteries are fully protected against over temperature, over charge and over discharge, but there's something important missing.

Battery Protector Datasheet:
http://www.ti.com/lit/ds/symlink/bq77905.pdf

Видео Lidl Parkside 12V Power Tool Battery Stripdown - Very Revealing канала Julian Ilett