Ampere Time 12V 400Ah Deep Cycle LiFePO4 Battery Pack, with Built-in 250A BMS, Longer Runtime with 5.12kWh, 4000+ Cycle, Perfect for Solar System, RV, Backup Power, Off-Grid and Marine Applications. Pack of 2

Twice Larger Capacity & Higher Supporting Power Ampere Time 12V 400Ah LiFePO4 battery with built-in 250A BMS provides max 5.12kWh energy, and supports max 250A continuous charge & discharge current and max 3.2kW continuous load power. 1*Ampere Time 12V 400Ah battery capacity is twice larger than regular 200Ah battery and you could build your battery system with easier operation and no worry about batteries connection. It meets your higher power and longer battery runtime at one time. Automotive Grade Lithium Battery We adopt Automotive Grade LiFePO4 Cells with higher energy density, more stable performance & greater power, and insist on providing customer with environmentally friendly green power solution. All Ampere Time battery meets UL Testing, CE, FCC, ROHS, PSE, IP65 certifications. Highest grade of battery cell and authoritative accreditation enable Ampere Time battery growing as LiFePO4 battery leader. 100% Protection Ampere Time LiFePO4 battery set you free from battery security issue. It equipped with battery management system (BMS), which protects the battery pack from over charging & discharging, over current, short circuit, and over temp. It is perfect in many off-grid applications, like solar or energy storage system, backup power, RV, security or surveillance systems and more capability of Ampere Time lithium iron phosphate battery is under exploration. Longer Lifetime & 1/3 Lighter Weight Ampere Time LiFePO4 battery provides 4000+ cycles with 10-year lifetime, which is twice times to LiFePO4 battery in market with 2000+ cycles and more than 10 times lifetime of lead-acid battery. Further, Our LiFePO4 battery weighs only 39.12kg / 86.2lbs for one module, only 1/3* the weight of lead acid batteries, more portable and easier in outdoor application. Worry-Free Guarantee & Faster Delivery Time Ampere Time provides 5-year warranty for all battery models with responsive and satisfying customer service. A proper solution will be provided to any problem within 24hrs for delivery, battery usage and problem during using and any other questions. The batteries will be shipped from our warehouse in Los Angeles, CA or Dallas, TX according to the inventory and order address to shorten the delivery time. 12V 50Ah PLUS 12V 100Ah 12V 200Ah 12V 200Ah PLUS 12V 300Ah 12V 400Ah Nominal Voltage 12.8V 12.8V 12.8V 12.8V 12.8V 12.8V Charge Voltage 14.6V 14.6V 14.6V 14.6V 14.6V 14.6V Energy 640Wh 1280Wh 2560Wh 2560Wh 3840Wh 5120Wh BMS Board 50A 100A 100A 200A 200A 250A Maximum Continuous Charging / Discharge Current 50A 100A 100A 200A 200A 250A Weight 11.57lb / 5.25kg 24.25 lbs / 11kg 48.28 lbs / 21.9kg 49.6lb / 22.5kg 68.34lb / 31kg 86.2lb / 39.12kg Dimension L7.79*W6.53*H6.69inch L13*W6.82*H8.48 inch L20.5*W9.37*H8.54inch L20.5*W9.37*H8.54inch L20.5*W9.37*H8.54inch L20.47*W10.59*H8.66inch Max. Load / Inverter Power 640W 1280W 1280W 2560W 2560W 3200W Recommend Inverter Power 1000W 2000W 2000W 3000W 3000W 4000W Recommend Solar Panel Configuration (Fully charges with effective sunshine 4.5h/day) 150W 300W 600W 600W 900W 1500W