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4 strings of 14.8V/16.8V18650 lithium battery protection board balanced overcharge and overdischarge protection board module 18A working current 4S-6040(3.7V/4 strings) -81021
Lithium battery protection board/4S-6040(3.7V/4 string) 4 strings of 14.8V/16.8V18650 lithium battery protection board balanced overcharge and overdischarge protection board module 18A working current 4S-6040(3.7V/4 strings)
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