DIY. Building New 3300mAh Li-ion Battery USB-C For Old BOSCH PSR 1440 Drill/Driver 2005

Hello guys. If you have old bosch drill driver like mine, you can build a new battery for your old drill driver. My bosch is 15 year's old and still working.Hope you enjoy this video and thanks for your support. Parts: Battery case PSR 1440: https://www.aliexpress.com/item/32813... Li ion battery 3300mah 30A VTC7: https://www.aliexpress.com/item/32888... 4S 40A Li-ion Battery BMS: https://www.aliexpress.com/item/32852... 4S Type-C charger: https://www.aliexpress.com/item/10050... Mini Spot Welder: https://www.aliexpress.com/item/40011...