【Rugged IP67 Waterproof & Portable Design】 Housed in a heavy-duty, waterproof, and dustproof hard case, this 36V 100Ah battery is purpose-built for harsh marine environments. The integrated handle and compact design make it 50% easier to transport than traditional 36V setups, ensuring your power stays dry and safe on any boat or golf cart. 【Plug & Play with Smart LCD Monitor】 Forget the guesswork. Our battery features a built-in real-time LCD monitor to track voltage and capacity at a glance. Equipped with a 120A Anderson plug and LD20 waterproof ports, it offers a true "plug and play" experience for high-draw devices like Minn Kota or Motorguide trolling motors. 【Grade A Cells & 120A Smart BMS Protection】 Built with premium automotive-grade LiFePO4 cells, ensuring 4000-8000+ deep cycles and a 10-year lifespan. The integrated 120A Smart BMS protects against overcharge, deep discharge, short circuits, and extreme temperatures, providing stable power even under heavy loads. 【Massive 3.84kWh Energy Hub】 With 3840Wh of usable energy, this single unit replaces three bulky 12V lead-acid batteries, saving significant space and weight (only 50.7 lbs). Need more? Support parallel expansion up to 15.36kWh (4 units), perfect for off-grid solar, large RVs, and commercial golf carts. 【5-Year After-Sales Service】Backed by a 5-year warranty, GuaiGLong is a leading LiFePO4 battery brand on Amazon. We provide dedicated technical support and responsive customer service, with all inquiries addressed within 24 hours. Our team is always ready to assist with any questions or issues. Note: The battery requires charging to activate upon first use and after each shutdown. 【Rugged IP67 Waterproof & Portable Design】 Housed in a heavy-duty, waterproof, and dustproof hard case, this 36V 100Ah battery is purpose-built for harsh marine environments. The integrated handle and compact design make it 50% easier to transport than traditional 36V setups, ensuring your power stays dry and safe on any boat or golf cart. 【Plug & Play with Smart LCD Monitor】 Forget the guesswork. Our battery features a built-in real-time LCD monitor to track voltage and capacity at a glance. Equipped with a 120A Anderson plug and LD20 waterproof ports, it offers a true "plug and play" experience for high-draw devices like Minn Kota or Motorguide trolling motors. 【Grade A Cells & 120A Smart BMS Protection】 Built with premium automotive-grade LiFePO4 cells, ensuring 4000-8000+ deep cycles and a 10-year lifespan. The integrated 120A Smart BMS protects against overcharge, deep discharge, short circuits, and extreme temperatures, providing stable power even under heavy loads. 【Massive 3.84kWh Energy Hub】 With 3840Wh of usable energy, this single unit replaces three bulky 12V lead-acid batteries, saving significant space and weight (only 50.7 lbs). Need more? Support parallel expansion up to 15.36kWh (4 units), perfect for off-grid solar, large RVs, and commercial golf carts. 【5-Year After-Sales Service】Backed by a 5-year warranty, GuaiGLong is a leading LiFePO4 battery brand on Amazon. We provide dedicated technical support and responsive customer service, with all inquiries addressed within 24 hours. Our team is always ready to assist with any questions or issues. Note: The battery requires charging to activate upon first use and after each shutdown.