ECOBOSS 12V 300Ah Lithium LiFePO4 Battery, 3840Wh Deep Cycle Power with 200A BMS for RV, Marine & Off-Grid

Heavy-Duty 12V 300Ah LiFePO4 Battery for Unlimited Off-Grid Power
Upgrade your power system with the ECOBOSS12V 300Ah LiFePO4 battery. Engineered with premium A-Grade cells and a professional 200A BMS, it delivers an unmatched 15,000+ deep cycles, cutting your battery replacement costs to zero. Perfect for RVs, marine boats, solar setups, and dependable home backup power.
Smart Low-Temp Protection & Weatherproof Design
Built to survive extreme environments. The integrated low-temperature sensor automatically stops charging below 32°F (0°C) and restarts at 41°F (5°C) to protect the cells from winter damage. With an IP65 weatherproof casing, this heavy-duty battery operates flawlessly from a freezing -4°F up to a scorching 149°F.
Scalable Massive Storage up to 61.44kWh
Expand your energy capacity without limits. This 12V 300Ah battery supports full 4S4P (4 Series & 4 Parallel) connection. You can link up to 16 batteries to build a beastly 51.2V 1200Ah system, punching out 61.44kWh of total energy to easily run high-load appliances.

• 【15,000+ Cycles Extreme Lifespan】 Powered by premium A-Grade LiFePO4 cells. This heavy-duty 12V 300Ah battery delivers an unmatched 15,000+ deep cycles, leaving traditional lead-acid batteries dead in the dust. Cut your replacement costs to zero and lock in relentless, long-term power performance.
• 【200A Monster BMS Current Output】 Armed with a professional-grade 200A Battery Management System (BMS). It absolute-protects against overcharge, over-discharge, and short circuits while supporting a massive 200A continuous discharge and 100A rapid charge. Built to run high-load appliances without breaking a sweat.
• 【Zero-Freezing Intelligent Protection】 Zero compromise in winter. The built-in low-temperature sensor automatically stops charging below 32°F (0°C) and restarts at 41°F (5°C) to completely shield your cells. Operates flawlessly from a freezing -4°F up to a scorching 149°F.
• 【61.44kWh Massive Storage Matrix】 Scalable power without limits for RV, marine, and solar off-grid systems. Supports full 4S4P expansion, allowing you to link up to 16 batteries into a beastly 51.2V 1200Ah system that punches out 61.44kWh of total energy. Packed in an IP65 weatherproof shell for brutal environments.
• 【10-Year Built-To-Last Standard】 Engineered to strict industrial standards for a 10-year operational life. Backed by 24-hour rapid-response technical support ready to handle installation and wiring setups instantly. You get the product, we back the power.