12V LiFePO4 Deep Cycle Battery – 250AH / 300AH | Factory Direct

Meet your ultimate off-grid power companion. The Capacity.Li 12V LiFePO4 Battery delivers massive capacity, rock-solid safety, and a lifespan that leaves lead-acid batteries in the dust. Whether you're powering an RV across the country or running a solar system at home, this battery keeps you going — reliably, safely, and for thousands of cycles.

🔋 Why Choose Capacity.Li?

• Factory Direct – No middlemen. Superior quality at a better price.
• 5,000+ Cycle Life – Up to 10x longer than traditional lead-acid batteries.
• Built-in Smart BMS – Protects against overcharge, over-discharge, short circuit & overheating.
• PP Waterproof Case – Durable, lightweight, and built for outdoor use.
• Wide Temperature Range – Operates from -40°C to 60°C discharge range.
• 12-Month Warranty – Free parts & technical support included.

📋 Specifications

• Chemistry: LiFePO4 (Lithium Iron Phosphate)
• Voltage: 12V (12.8V nominal)
• Available Capacities: 250AH / 300AH
• Peak Discharge Current: 200A
• Continuous Discharge Current: 120A
• Cycle Life: 5,000+ cycles
• Charging Temperature: -20°C ~ 45°C
• Discharge Temperature: -40°C ~ 60°C
• Storage Temperature: -50°C ~ 85°C
• Weight: ~20 KG (250AH) / ~27 KG (300AH)
• Dimensions: 390 × 310 × 180 mm
• Operating Voltage: 10.8V – 14.6V
• Overcharge Protection: 14.6V ± 0.05V
• Over-discharge Protection: 10.8V ± 0.05V
• Output Terminal: Red (+) / Black (−)
• Warranty: 12 months

⚡ Perfect For

Solar energy systems · RV & motorhomes · Outdoor camping · Inverters · Marine & trolling motors · Emergency backup power · Xenon lamps & searchlights · Medical & surveillance equipment · Electric tools & industrial equipment

⚠️ Safety Precautions

• Do not submerge in water or expose to moisture.
• Keep away from heat sources and open flames.
• Do not throw into fire or attempt to heat the battery.
• Do not hammer or puncture the battery casing.
• Do not disassemble or modify the battery in any way.

📦 Package Includes

• 1× 12V LiFePO4 Battery Pack (250AH or 300AH) with built-in BMS & PP waterproof shell
• 1× 14.6V 50A Battery Charger (EU / US / UK plug available)

Need a custom voltage, capacity, or size? Contact us — our factory team will build it to your exact specifications.