1. Before installing protection, the batteries must be properly matched (the voltage difference between each battery should not exceed 0.05v. The difference in internal resistance is not greater than 5m, and the difference in capacity is 30mAh lower). The better the battery consistency, the longer the distance traveled, and the more stable the protection performance achieved.
2. Batteries should be connected in parallel before being connected in series, and ensure correct welding (18650 batteries should be spot welded with nickel plates, and other batteries should be soldered with solder). Do not screw them down, as it may burn out the IC of the protective plate. TZT.
3. Confirm Whether The Battery Model Is A Lithium Battery Or An Iron Lithium Battery: the protection parameters for the two are different. Lithium batteries include: (ternary lithium, lithium cobalt oxide, manganese oxide), all of which have a reference voltage of 3.7V, collectively referred to as lithium batteries. Therefore, when selecting a protective plate, it is necessary to choose a lithium battery protective plate. The reference voltage of lithium iron phosphate battery is 3.2V, so the lithium iron phosphate protection board must be used when selecting the protection board.