1 string of 3.7V 4.2V lithium battery CN3791 MPPT solar controller charging board 6V 9V 12V

1 string of 3.7V 4.2V lithium battery CN3791 MPPT solar controller charging board 6V 9V 12V
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sku: 1005005547597303
$1.90
Shipping from: China
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