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Battery Protection & Charging: Why Inconsistent Voltages and Activation Steps?
1. The order of wiring is wrong, measure the wiring to confirm whether the voltage of each battery string is correct.
2. After power-on protection, the lithium iron battery is at 2.8V-3.4V, and the polymer (ternary) is at 3V-4V. Charge or discharge the battery to the voltage range without the protection board, and then connect the protection board.
3. The discharge MOS tube is closed. Charge activation