Diypow 400Ah 12 Volt Lithium Battery Built-in 200A BMS 4000+ Deep Cycles Max 5120W Power Output 10-Year Lifetime Perfect for RV, Solar, Marine etc

Diypow 12 volt deep cycle battery are manufactured of A-grade cells with higher energy density, more stable. Long life expectance 15 years @25°C in 80% DOD, service life 4000cycles. The working temperature can reach -20°C. 12 volt car battery built-in 200A BMS effectively protects the electric core from damage caused by high temperature, low temperature, short circuit, over-current and overload. 100A continuous output current can continuously charge big-power devices. Perfect for RV, Camping.
12 Volt 400Ah Lithium BatteryBuilt Diypow tough, this 12 volt lithium battery packs a big punch. Using lithium iron phosphate (LiFePO4) technology, this battery delivers twice the power, half the weight, and four times the life compared to sealed lead-acid batteries - providing excellent lifetime value. 400 amp-hour capacity provides all-day power for high-amperage trolling motors or long drives in motorhomes. Ideal for deep cycle applications such as trolling motors, solar storage, or boating where large amounts of power are required over long periods of time. Same performance as our legendary 50 amp battery, but with 80% more capacity. Want to know more about how to use a 12V lithium battery? Please click here.Longer Battery LifeOur 400 Ah 12 V LiFePO4 Deep Cycle battery has a life expectancy of 4000 cycles with a 200 Amp Continuous current, 200 Amp Surge Current (30 seconds), and ½ second surge for higher loads.Reliable BMS SystemThe advanced BMS utilizing the software controller intelligently monitors the battery's operating conditions and oversees its safe operations. Continuously monitors conditions, redistributes energy resources in no time flat, and sends alerts in the event of a problem.Auto-balancing FunctionDue to the upgraded auto-balancing function, you can combine batteries in parallel more safely. We recommend connecting the batteries with appropriate cables to achieve optimal effect. Please note that do not connect batteries in series, and the maximum number that can connect in parallel is 8.Bluetooth Monitors Battery（Optional）Bluetooth 5.0 is designed to reduce the energy consumption of Bluetooth peripherals. It is faster and operates over longer distances than older versions. You can easily monitor the status of your battery more accurately and conveniently in real-time.Low-Temperature Self-Heating FunctionThe intelligent self-heating function will start operating automatically once the battery’s core temperature drops below 41°F (5°C), effortlessly keeping your battery charged in cold environments. Plus, this function is powered by the Charger/Controller's current instead of the battery itself.Support 4 Parallel 4 SeriesConnecting battery cells gains higher voltages or achieves improved current loading.Lighter WeightThe battery case is made of high-quality ABS material with good sealing performance and solid construction. It weighs about half as much as a lead-acid battery of the same capacity. In usage scenarios, such as RV, it can lead to more free space.Maintenance freeLithium-ion batteries last two to four times longer than lead-acid batteries. Frequently having to maintain your lead-acid batteries can be time-consuming and costly. However, Diypow lithium-ion batteries are virtually maintenance-free and do not require frequent watering, equalization charging, or cleaning.10 Years WarrantyDiypow LiFePO4 battery has obtained CE, RoHS, PSE, and WEEE certifications. All lithium iron phosphate batteries come with a 10-year conditional warranty covering defects in materials and workmanship starting from the date of purchase. And the battery charger comes with 90 days warranty.Wide Applications for Home & OutdoorsDiypow 400Ah 12V lithium battery could connect max 4 parallel to build a 48V(51.2V) 400Ah battery system, which could support 5.120KW max. load power, 5120KWh max. Energy. So our lifepo4 battery 12v 400Ah is perfect for wide applications, such as home backup power, RV, Solar, Marine, trolling motor, off-grid system, etc.NOTEOur 12V 400Ah batteries have a maximum charge current of 14.6V and a discharge cut-off voltage of 10.5.The Maximum Batteries in Serial is 4 to get higher voltage to 24V, 36V, 48V. Maximum Batteries in Parallel is 10.Your 12V 400Ah battery can be fully charged with a standard lead-acid charger that reaches 14.4-14.6 volts.Battery chargers with voltages below 13.6 volts will only charge the battery to 50% of its capacity or less.Looking for a 12V 100Ah lithium battery? Click here.Find the battery you want quicklyDiypow - Lithium Marine Batteries - RV Batteries - Fishing Kayak Batteries - Solar Batteries - Golf Cart Batteries - Trolling Motor Batteries - OFF-Grid Batteries - Home Energy Storage SystemIf you have any questions regarding this product, please drop us a line or email at info@ for troubleshooting assistance. Our one-on-one customer service will get back to you within 24 hours.Diypow Support OEM CustomizedWe have strong supply chain resources to provide you with customized services for your batteries. Including the color of the battery casing, logo customization, and Bluetooth software customization. If you want to know more about customization x information, please drop us a line or email at info@ for resource assistance.

✅5 years warranty and lifetime 24 hours technological support - We're aiming to provide the safest batteries and the most professional service to