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ALL about assembling a large battery for an electric bicycle, scooter or scooter from used elements. I will show you how to assemble a large battery with your own hands, at home, using minimal and cheap equipment. Shopping section: Link to the spot welding device: https://alii.pub/71rymm Lii500 cell tester: https://alii.pub/71ryic 12-cell charger: https://alii.pub/71rylu Link to 5 by 4 holders: https://alii.pub/71rynl Spot welding tape: https://alii.pub/71ryh6 Insulating cardboard: https://alii.pub/71ryft BMS 16s 60 V protection board: https://alii.pub/71ryc4 BMS 10s 36 V protection board: https://alii.pub/71rydo A good internal resistance meter: https://alii.pub/71rxnt Insulating rings: https://alii.pub/71ry63 Link to new elements: https://alii.pub/71ry3r time code: 00:00:00 Introduction 00:01:55 Used elements are not always bad 00:03:50 Parcel overview 00:04:34 Element weight 00:05:04 Capacity of used elements 00:07:03 How to check elements 00:12:33 Battery holders 00:13:32 How to connect elements, theory 00:18:40 How much is defective out of 200 used elements 00:21:47 Block layout. 00:27:46 Drawing a diagram of the battery 00:33:17 Connecting the protection board 00:38:41 Assembling the elements into a form 00:43:18 How to connect the elements together 00:46:30 Welding the elements according to the drawing 00:57:32 Comparing the weight of the old and new battery 00:59:42 What soldering iron can be used to solder batteries 01:02:48 The final touch 01:04:53 Connecting the BMS protection board 01:11:01 Comparing the cost of a battery made from used and new elements 01:12:01 Checking the BMS protection board 01:16:33 Conclusion and completion Mail for suggestions: [email protected] Become a sponsor of the channel, and you will get access to exclusive materials and help me with its development. More details: / @pro_stroy