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You can convert a damaged or low-efficiency cordless screwdriver or rechargeable drill battery to Li-ion battery https://a.aliexpress.com/_vtBDQv The video is a recycling project with old laptop batteries. When we examine the datasheets of the batteries (sanyo Ur18650); It states that it will give a nominal 2c and a maximum 4c current. The features of the battery we made; 3s2p and its capacity is 4400 mah. 8800 mah nominal output can give a maximum output of 17600mah. Our motor is a 12-volt motor with a maximum consumption of 100 watts. It draws a maximum current of 8 amps. Bms is 30 amps. If you want to do a heirloom job and you need to use a Sony Vtc5a or vtc6 suitable for this job. You should not use the old charger after converting the batteries to Li-ion. • Li-ion battery user guide • Battery Charger CHARGER LI-I... you can find detailed information about making a charger in these videos. If you want to get detailed information, you can ask your questions in the comments. #Cordless screwdriving #cordless drill #lithium-ion battery #nickel cadmium battery #nickel cadmium battery conversion to li-ion battery #rechargeable screwdriving battery repair #rechargeable screwdriving battery replacement #Rechargeable screwdriving #cordless screwdriving