Intelligent Low-temperature Protection System: The 100Ah LiFePO4 battery is equipped with an advanced BMS temperature control system, providing comprehensive protection against overcharging, over-discharging, overcurrent, overheating, and short circuits. When the temperature drops below -4°F, the BMS immediately cuts off discharge; when the temperature drops below 32°F, the BMS immediately cuts off charging. Recommended adapter: 14.6V ± 0.2V 10-year Lifespan: 12V lithium batteries use high-performance Grade A+ LifePO4 batteries, offering higher energy density and more stable performance. With up to 15,000 deep cycles, they reduce the cost of frequent replacements, with a usage cost of just 0.04 USD/day. Maximum Expandable Capacity Up to 20.48 KWh: 12V 100Ah LiFePO4 batteries can be connected in parallel or series to achieve greater capacity. They can be configured as 4 series (48V, 100Ah, 5.12 KWh) or 4 parallel (12V, 400Ah, 5.12 KWh), or 4 in series and 4 in parallel (48V, 400Ah, 20.4