Power Queen 12V 100Ah Auto-Heating LiFePO4 Lithium Battery BMS Support Low Temp. for RV, off-Grid，Match BCI Group 31 Battery Box

【The Lowest -4℉/-20°C Operating Temperature】12.8V 100Ah Smart Lithium Battery with Auto-Heating allows you to charge your batteries in cold environments effortlessly, especially the built-in Auto-Heating pad that can be charged at ambient temperatures of -4°F/-20°C. If you're looking for deep cycle batteries for Camper;Trolling motor;RV; Trailer; Fishing Boat; Yacht, outdoor, or use in cold winters, this Auto-Heating battery is the perfect solution for you. Let you in low temperature charging away from the traditional LiFePO4 battery trouble. 【Intelligent Auto-Heating Function】Power Queen LifePO4 Auto-Heating Battery meets the upgrade Auto-Heating function based on the previous battery. When the charging temperature falls below 41°F/5°C, the Auto-Heating function will be automatically activated. Heating will stop when the temperature reaches 50°F/10°C, and then the battery will be normally charged. No fear of winter coming. 【Ultra-Safe 100A BMS & 4000+ Cycles】Power Queen LifePO4 Battery with state-of-the-art battery cells ensures an exceptional lifespan of more than 4000+ cycles (100% DOD&100%SOC), and an Ultra-Safe and Stability 100A BMS system with a low discharge rate, which enables provide 10-year lifetime. 【Capacity Expansion & More Energy】Power Queen 12.8V 100Ah LiFePO4 Auto-Heating Battery supports 1280W load power, and it also can be connected in parallel & in series for larger capacity. Allow being extended up to 4S4P to get a 48V (51.2V) 400Ah battery bank. Meanwhile, Power Queen Lithium-iron batteries provide 20.48kWh energy (4P4S) that could be widely used for outdoor, RV and solar systems. 【U.S. Based warehouses & 24hrs Timely Service】Power Queen 12.8V 100Ah LiFePO4 Auto-Heating Battery with a 5-year warranty. Customers in the United States are expected to receive the battery within 2~7 working days due to our local warehouses in CA, TX, and GA. We provide a strong battery package, quick delivery as well as 24 hours timely customer support. Specification Brand： Power Queen Voltage: 12.8V Capacity: 100Ah BMS： 100A Energy： 1280Wh Max. Load Power ：1280W Max. Charge/Discharge Current： 100A Size： L13*W6.82*H8.48inch Weight： 21.6lbs Cycle Times： 4000-15000 LiFe Time ：10 Years PACKAGE INCLUDED 12V 100Ah Auto-Heating LiFePO4 Battery*1 M8 Post Bolts  *4 Insulation Caps*2 Operation Guide *1 Product Manual *1 Please be noted: battery charger is not included. QA Q1:Can I use the 12V100Ah auto-heating connect in series/parallel with your basic battery? Our 12V100Ah auto-heating can not connect in series/parallel with your basic battery. Q2: When will your auto-heating battery start and stop heating up? The auto-heating function will be auto activated when the charging temperature lower than 32°F (0°C). The heating will be stopped when the temperature has reached 50°F (10°C). Q3: What's the recommended charge/discharge temperature? The charging Temperature of our auto-heating battery is 32℉ to 122℉ and discharge Temperature is -4℉ to 140℉. Q4: What should I pay attention to in series/parallel before connecting? • The same model (capacity & voltage & BMS) • The same brand • Recent purchases (within 3 months) • The Basic and Auto-Heating battery cannot be connected in series/parallel. Q5: How to charge the battery? Power Queen 12.8V 100Ah Auto-Heating Lithium Battery have three types of charging: •BATTERY CHARGER •SOLAR PANEL •ALTERNATOR