Model No: P10 Input voltage: DC 10~30V Output voltage: DC 1~26.4V Max. input current: 20A Charging current: 0.2~10.0A*2 Balance current: 0.5A/Cell Max Max. charging power: 250W*2 Abnormal voltage alarm: Support Incorrect cell count setting alarm: Support Supported Quick-charge: LiFe, LiIon, LiPo, LiHv 1-6S, Pb 1-10S; NiMH, Cd 1-16S Working temperature: 0~40& 8451; Storage temperature: -20& 8451;~60& 8451; Dimension: 90.5×90.5x47mm Weight: About 250g Model No: P20 Input voltage& 65306;DC 10~34V Output voltage& 65306;DC 1~34V Max. input current& 65306;35A Charging current& 65306;0.2~20.0A x2 Max. charging power& 65306;500W x2 Balance current& 65306;1.5A/Cell Max Discharging current& 65306;0.2~1.5A x2 Max. discharging power& 65306;15W x2 Abnormal voltage alarm& 65306;Support Incorrect cell count setting alarm& 65306;Support Supported battery types and cell count& 65306;LiFe, LiIon, LiPo 1-8S ; LiHv 1-7S ; Pb 1-12S ; NiMH/Cd 1-16S Parallel charging power and current& 65306;800W/35A Parallel discharge power and current& 65306;30W/3A Working temperature& 65306;0~40& 8451; Storage temperature& 65306;20& 8451;~60& 8451; Dimension& 65306;105x105x47mm Weight& 65306;About 350g