link to bracker switch 100A : https://www.amazon.de/LONXAN-Trennschalter-Netzschalter-Anti-Leckage-Knopf-Familienauto%EF%BC%8CAusr%C3%BCstung/dp/B096MD13M2/ref=pd_sbs_4/258-3580668-4950814?pd_rd_w=aRtj9&pf_rd_p=b2a25e73-6e6a-41bb-a7ce-5f2d2342b819&pf_rd_r=YPK7VAJYMNQEM9C3DZMZ&pd_rd_r=1de0455a-eef1-45d4-9c3e-0610a7b5c4b6&pd_rd_wg=StXxJ&pd_rd_i=B096MD13M2&psc=1
Fuel Gauge IC used in thi project: BQ34Z100-G1: https://www.ti.com/lit/ds/symlink/bq34z100-g1.pdf?ts=1636965145625&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FBQ34Z100-G1