✓Drop-In Replacement – 60% Lighter Than Lead-Acid Weighing just 58.86 lbs (26.7 kg) and measuring 21.06 × 8.07 × 8.46 inches (handle included), the DUMFUME 12v 200ah lifepo4 battery is a true drop-in replacement for bulky lead-acid units — no modifications or mounting adjustments required. It delivers more than double the energy density of conventional lead-acid batteries, maximizing both onboard space and payload efficiency. Its compact, lightweight design installs seamlessly in RV battery compartments, camper vans, truck campers, marine vessels, off-grid cabin enclosures, and solar storage sheds.
✓200A Smart BMS & IP65 Protection This DUMFUME 12v lithium battery 200ah is equipped with a 200A continuous‑rate Smart BMS that provides comprehensive electrical safeguards. Overcharge protection triggers at 14.6V ± 0.2V, over‑discharge protection cuts off at 9.2V ± 0.2V, overcurrent protection responds within 50ms for loads exceeding 200A, and short‑circuit protection activates in less than 100µs to ensure instantaneous fault isolation. The IP65‑rated enclosure offers complete dust ingress protection at level 6 and level 5 water mist resistance, making it reliable in harsh outdoor base camps, marine operating environments and similar rugged environments.
✓15,000+ Deep Cycles & Long Lifespan Built with high-quality cells, the 12v 200ah lifepo4 lithium battery delivers outstanding cycle life across all depth of discharge (DOD) conditions. It achieves over 4,000 cycles at 100% DOD, over 6,000 cycles at 80% DOD, and over 15,000 cycles at 60% DOD — that’s more than 10 times the cycle life of traditional lead-acid batteries. As a reliable lifepo4 battery 12v 200ah, it is UL-certified and UN38.3-certified for transportation safety for added peace of mind.
✓Low‑Temperature Cutoff – Cold Weather Operation The DUMFUME 12.8v 200ah lifepo4 battery incorporates a precision low‑temperature cutoff function built to preserve long-term battery health. Discharging is permitted down to –4°F (–20°C), while charging is automatically inhibited when the internal cell temperature falls below 32°F (0°C) to prevent irreversible lithium‑plating damage. The BMS continuously monitors cell temperature and resumes charging only after the internal temperature rises to 41°F (5°C). This intelligent thermal management ensures safe operation in seasonal climates, without sacrificing battery longevity.
✓4S4P Expandability – Scale as Needed The DUMFUME lifepo4 battery 200ah supports a 4S4P expansion architecture, enabling up to 16 total units (four in series + four in parallel) to be interconnected. At maximum configuration, the system delivers 51.2V nominal voltage and 800Ah capacity, yielding a total usable energy of 40.96kWh (12.8V × 200Ah × 16). The modular design allows users to start with a single 12.8V/200Ah unit and progressively add batteries in series for higher voltage or in parallel for increased capacity as power demands grow — no need to replace existing modules. All units share the same communication protocol for seamless BMS coordination during system expansion.
✓5-Year Warranty & 24/7 Support This DUMFUME 200ah lifepo4 battery is covered by a 5-year warranty and 24/7 customer support. Our dedicated team provides assistance with installation, configuration, and troubleshooting for the full lifecycle of your system. Note: This is a deep-cycle battery and is not designed for starting battery applications.