Specifications: Input voltage: AC 100~240V / DC 10~30V Output voltage: DC 1~30V Max. input current: DC 35A Charging current: 0.2~20A x2 Discharging current: 0.2~3A x2 Balance current: 1.5A/Cell Max Max. discharging power: 30W x2 Max. charging power: AC 400W / DC 600W x2 Abnormal voltage alarm: Support Incorrect cell count setting alarm: Support Supported battery types and cell count: LiFe, Lilon, LiPo 1~8S, LiHv 1-8S, Pb 1-12S, NiMH/Cd 1-16S Parallel charging power and current: 800W/35A Parallel discharge power and current: 30W/3A Working temperature: 0~40℃ Storage temperature: -20℃~60℃ Dimension: 142x135x64mm Weight: About 700g Packaging included: 1X ISDT K4 Charger