Tenergy Combo TB6AC4 Intelligent Four-Channel Balance Charger + PC Battery Monitor Software Kit Fast Intelligent Four-Channel Balance Charger prevents overcharging & maximizes safety with Delta-peak sensitivity. Balancing independent cell battery discharge & automatic individual cell shut-off when abnormal discharging occurs. Adaptable to various types of lithium batteries (i.e., Li-Ion, LiPO & LiFe) with internal independent lithium battery balancer. Included Tenergy PC Battery Monitor Software allows you to: monitor charging status (input/output voltage, capacity, current, Power), display cell voltage of a pack individually, record data over a period of time and plot into graphs. Software kit compatible with Tenergy TB6, TB6AC4, and TB6AC chargers and connects with any PC USB Port.