We offer professional design consultation and services. Please let us know about your project! Purchase price of item will be credited a full 100% towards consultation information and services. Billed @$65 per hour, in 15min increments. Description:This BMS balance board is used for a lithium battery pack to equalize voltage and protect the cells. This module charges, discharges, balances, and acts as a low voltage/over charge cutoff. Wires are not included. We recommend 16-12ga wire for the load bearing lines, and 22-18ga wire for the balance leads. Soldering is required. There are 2 options to wire the BMS. The first option uses the COMMON Port for both charge and discharge at 60A. The second option, uses a SEPARATE Port for charging (60A) and discharging (100A). Battery compatibility: Voltage of 2.5V - 4.2V lithium battery (18650, 26650, LiPo, Li-ion)Charging input voltage: 21VMaximum starting current: 100ADischarge current: 60A-100ACharge current: 60ABoard Size: approx. 42*60*7.4mmPackage includes: 1 x Li-ion Battery Protection Board Condition is New. Shipped with USPS First Class.