
Maximum Capacity & Ultimate Off-Grid Independence
Experience true power autonomy with the flagship SANDISOLAR SS Series 12.8V 300Ah (3840Wh) LiFePO4 Lithium Battery. Delivering a massive 3840Wh energy density in a single battery, this high-capacity powerhouse is purpose-built for heavy-duty RVing, off-grid cabins, marine vessels, and whole-home solar storage.
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Colossal 3840Wh Usable Capacity & 6000+ Cycles: Premium Grade-A LiFePO4 cells provide long-lasting, reliable power for 10+ years—replacing multiple smaller batteries with one streamlined unit.
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150A High Continuous Charge/Discharge: Powered by a heavy-duty 150A BMS, safely supporting up to 1920W continuous power output for high-load appliances and large solar inverters.
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Smart Bluetooth Monitoring: Effortlessly check live State of Charge (SOC), voltage, temperature, and individual cell status anytime through your smartphone.
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Extreme Climate Readiness (-20°C Discharge & IP65 Waterproof): Enclosed in a rugged IP65 waterproof housing with low-temperature discharge capabilities, keeping your system operational through snowstorms and damp marine environments.
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Massive Scalability (Max 4S4P Expansion): Connect up to 16 batteries in series and parallel to construct a monster 51.2V 1200Ah system with 61.44kWh energy storage.
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Fast Local Shipping: Shipped directly from our US & EU local warehouses with rapid delivery, zero customs duties, and hassle-free support.







Why Choose SANDISOLAR?
Every Day is a Sun-day
- SANDISOLAR is a high-tech company specializing in solar modules, inverters, batteries, energy storage systems, EV charging, and smart energy solutions. We can support one-stop solar energy solutions
- Robust & Integrated Supply Chain and Advanced R&D & Technological Innovation help us become a reliable brand
- We have established long-term partnerships with global leading brands
- Local warehouse and service
- From high-end residential complexes to expansive agricultural farms, our extensive experience in large-scale projects guarantees a robust, scalable, and intelligent energy future for our customers




