Power Queen 12V 100Ah LiFePO4 Lithium Battery 100A BMS with 40A DC to DC Charger for RV Trailer Solar Off-grid

【Half Lightweight And Twice Capacity】Power Queen 12.8V 100Ah LiFePO4 battery weighs only 24.25 lbs, only half weight and providing twice capacity in the same size as lead-acid batteries, you can easy to move and install. And our LiFePO4 battery is 100% usable capacity compared with lead-acid battery only provide 60%~70% capacity, which can be tested by a percent state of charge meter. 【Extendible Storage For Various Scenarios】Power Queen 12.8V 100Ah LiFePO4 battery can be connected in parallel & in series for larger capacity. Allow being extended up to 4S or 4P to get Max 400Ah capacity or Max 48V(51.2V) voltage. Widely used in most areas such as RV, Solar, Household Battery, Off-Grid and Electric Scooter, Electric Handicap and so on. Note: The battery cannot be used as a starting battery . If you are not sure that, please contact customer service for relevant information. 【Eco-Friendly Energy & Save 1/2 Power Fees】Power Queen 12.8V 100Ah LiFePO4 battery provides 4000+ cycles times and 1280Wh energy, which means our 100Ah battery produces 5120kWh (1280Wh*4000 cycles times=5120kWh) in its 10-year lifespan, which means you will save 1/2 of power fees compare with using the utility power. Our LiFePO4 batteries are widely used for solar system, RV trip and outdoors activities, you could enjoy self-reliant colorful life when using the battery in solar source. 【Exquisite Design & Simple Operation】Small, light, and exquisite, Power Queen 12V DC-DC battery charger has a compact design, and the dimensions are 5.83*1.89*7.44 inches, so it can save more space for your vehicle. The additional components, Anderson connectors, bring simple connection and operation in the installation process, less trouble for you during setup. The visual LED indicators let you easily know the charging status. 【High-level Safety Secured & Reverse Charge Function】Power Queen 12V DC-DC battery charger can protect the battery from over-charging, over-voltage, and over-temp, and it has BMS protection for LiFePO4 batteries. Besides, this charger can activate the LiFePO4 battery when the BMS inside the battery shuts off. Where necessary, the service battery is able to charge the starter battery, protecting the starter battery and alternator from damage. 【Dual Input Charging】Power Queen 12V DC-DC battery charger supports charging the service battery through two methods, the starter battery and the solar panels, achieving 100% fully charged on the service battery. The advanced built-in MPPT function of the charger maximizes solar power and brings a high charging efficiency at a proper voltage and charging phase. 【Great Compatibility & More Options】Power Queen 12V DC-DC battery charger is compatible with various battery types, such as AGM, Gel, SLA, CA, and Lithium batteries, offering you more options and a more flexible lifestyle. The charger is able to meet your multiple needs for charging the service battery in various application scenarios, such as RV, trailer, camper, truck, yacht, marine, etc. 【24-hour Timely Service】Power Queen struggles to provide every customer with the safest product and the most professional service. If you have any questions, we'll offer one-on-one technical support to analyze consumers' problems within 24 hours. Package Included: 1* 12V 100Ah LiFePO4 battery +1* 12V 40A DC to DC On-Board Charger