4S or 3S 12V Li ion or Lifepo4 Battery smart BMS with Bluetooth function UART and RS485 communication with 60A to 120A constant current – LLT POWER ELECTRONIC
Tenergy Charger for 11.1V (3S) Li-Ion/LiPO Battery Pack - Tenergy
China Customized 3.6V 18650 2200mAh/2400mAh/2600mAh/2800mAh 3s Li-ion/ Lithium/Lithium Ion Battery Pack with BMS and Connector - China 7650mAh Battery Pack, Lithium Ion Battery 14.8V
3S 4.2V li-ion Li-Po balancer board _ - AliExpress Mobile
18650 battery 3S1P 2900mAh 11.1V 3C li ion battery pack with NTC and 3P connector, 18650 2900mAh battery 18650 11.1V 2900mAH battery 11.1V 2900mah battery - Buy China 18650 3s li ion battery on Globalsources.com
How to Make a 3S 18650 Battery Pack : 7 Steps (with Pictures) - Instructables