Cheap And Discounts 2S 10A 7.4V 18650 Lithium Battery Protection Board 8.4V Balanced Charging Module PCB PCM with Balance Function for Power Bank Wholesale. Buy Directly From Merchant Shop1104674147 Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.