Cheap And Discounts 5 pcs/lot BMS 1S 5A 10A 15A 3.7V 3MOS 4MOS 6MOS 18650 Lithium Battery Charge Protection Board 16850 Battery Charging PCM Wholesale. Buy Directly From Merchant Module Sky. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.