Eight battery packs charging synchronously. One time setting for maximum eight connected battery packs the CJ68 charger will auto change all the battery packs full. Patent technology charge port Patent technology charge port compatible with 1S~6S LiPo/LiFePo battery packs. Independent and balance charge Independent balance charge for every single battery cells single power supply to very battery cell even the high voltage gap in the pack the final voltage for every cell will be equal when the charge finished finished cells will stop charge when its full and never overcharge. Timesaving Support maximum 6A charge current for 6 battery cells finish the charge asps save time for you. Higher precision and longer cycle-life 0.006V precision voltage detection and 0.01A precision current control make sure every battery cell exactly and never overcharge. keep the battery higher performance and higher cycle-life. High efficiencylow consumption Self working current 70mA only 40% of other bland balance chargers environmental friendly and safe. Special 3.0 inch LCD screen Special 3.0 inch LCD screen display every battery cells charging status and easy to set it. Self Production: Wrong input power polarity the charge will not work low and over voltage input power warning wrong output charge polarity will not charge the battery.