Quantity   Component name
90 × 18650 cells Salvaged from broken laptop batteries
1 × 12V 1000W Modified Sine Wave Inverter https://www.ebay.ch/itm/Spannungswandler-12V-1000W-6000W-Stromwandler-Solar-Inverter-Wechselrichter/371674435401?hash=item568985cf49:m:moVKN3p_tJR6n9R7ZrMxSnw
1 × 3S 150A BMS
1 × 12V LED Push Button https://www.ebay.ch/itm/142264596040?ViewItem=&item=142264596040&var=441322709257
1 × 12V 70A Relay https://www.ebay.ch/itm/131106074235?ViewItem=&item=131106074235