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2S 7.4V 18650 lithium battery protection board 8.4 V battery protection board 13A working current 20A current-limiting

USD 0.75USD 0.80

2S 7.4V 18650 lithium battery protection board 8.4 V battery protection board 13A working current 20A current-limiting

Description
Specification
20 Teile/los LM386 SOP-8
USD 3.61USD 3.84
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