Dumfume 12V 314Ah Deep Cycle Rechargeable LiFePO4 Battery for RV, Solar Marine, Solar Panel, Camping
$320.00
Einzelpreis pro- Massive 314Ah Capacity & 4.01kWh Energy – Delivers solid 4.01kWh energy, outperforming standard 300Ah models with premium LiFePO4 cells.
- Long Cycle Life – Over 4,000 deep cycles at 100% DOD, equivalent to more than 10 years of service.
- Built-in 200A BMS with Full Protection – Protection against overcharge, over-discharge, over-current, and short circuits with 2560W continuous output.
- Compact & Lightweight Design – Weighs only 57.28 lbs with dimensions 15.16"×7.59"×9.84", ideal for space-constrained installations.
- High Power Capability – Can run high-wattage devices like microwaves and electric kettles with stability and reliability.
- Flexible Expansion – Supports up to 4S4P configurations for custom power systems up to 48V.
- Wide Applications – Perfect for RV power, solar energy storage, home backup systems, and various off-grid applications.
- Maintenance Requirement – Voltage and current may vary by 1%-5%. Perform charge/discharge every 6 months during storage.
- Temperature Consideration – Battery performance requires temperatures of 5°C or higher. Not suitable as starting power source.
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We ship from local warehouses in the United States, Canada, Germany, Australia, and Europe.
Orders are processed within 1–3 business days and typically delivered within 2–5 business days.
Your order will be dispatched from the nearest available warehouse to ensure the fastest delivery.
All prices shown include VAT, import duties, and customs fees—no additional charges upon delivery.
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Products purchased directly from the official Dumfume Store are eligible for return or refund within 30 days of delivery.
For orders placed through authorized distributors or third-party marketplaces (Amazon, AliExpress, Temu, Ubuy), please follow the respective platform’s return procedures.
Return Requirements
- Items must be unused, complete, and in original packaging.
- All returns must be authorized by our official support team before shipping.
Return Shipping
- Quality-Related Cases (defective, damaged, incorrect, or significant delay): Fully covered by Dumfume.
- Non-Quality Reasons (e.g., change of mind): Return shipping costs are the responsibility of the customer. No restocking or handling fees will be charged.
Refunds
Refunds are processed within 14 business days to your original payment method after the returned item has been inspected.
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Official Website Exclusive Warranty
The 5-Year Limited Warranty is provided exclusively for products purchased directly from the official Dumfume website (www.dumfume.cn).
Coverage
• LiFePO₄ Batteries: 5 years
• Accessories: 1 year
Warranty begins on the date of original shipment and applies to the original purchaser only.
This warranty does not affect your statutory rights.
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*For other channels, please refer to the warranty policy of your place of purchase.
We provide dedicated pre-sales consultation and after-sales technical assistance to ensure a reliable purchasing and ownership experience.
Pre-Sales: dumfumeofficial@gmail.com
After-Sales: dumfume@hotmail.com
For faster support, please include your order number, product serial number, and a description of the issue (photos or videos when applicable).
We typically respond within 2 business days, with support available 7 days a week.
Small Size, Big Power
57.28 lbs only — 1/3 lighter and smaller footprint than lead-acid, yet delivers higher usable capacity.
Versatile Power Solution for Every Need
Compact, reliable, and powerful, the Dumfume 12V 314Ah LiFePO4 Lithium Battery is nicely built to meet your power needs across a variety of scenarios. Whether exploring the great outdoors, living off the grid, or preparing for unexpected power outages at home, the battery handles it all.
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Camping & Outdoor Adventures
Enjoy reliable power for your outdoor trips – keep your essentials running for days.
- Portable Refrigerator (50W DC): up to 80.4 hours
- Laptop (60Wh each charge): up to 67 charges
- Smartphone (15Wh each charge): up to 268 charges
- DC Fan (40W): up to 100.5 hours
- E-Bike (500W DC): up to 8.06 hours
- Portable Refrigerator (50W DC): up to 80.4 hours
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Off-Grid & Home Backup Power
Stay prepared during outages with stable backup energy.
- Refrigerator (100W AC): up to 33.9 hours
- LED Light (10W AC): up to 339.1 hours
- WiFi Router (10W AC): up to 399.1 hours
- Television (85W AC): up to 39.9 hours
- Refrigerator (100W AC): up to 33.9 hours
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Solar & Off-Grid Power
Harness sustainable solar energy to keep your adventures powered day and night.
- Smartphone (15Wh per charge): Up to 251 charges
- LED Light (10W AC): Up to 339 hours
- Portable Fan (40W DC): Up to 94.2 hours
- Laptop (60Wh per charge): Up to 63 charges
- 12V Car Fridge (50W DC): Up to 75.4 hours
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RV & Van Life
Power your appliances for a comfortable life on the road.
- RV Refrigerator (50W DC): up to 76.8 hours
- Water Pump (60W DC): up to 64 hours
- Electric Kettle (1000W AC): up to 3.4 hours (practical use: several boils)
- Portable AC / Cooler (1500W AC): up to 2.3 hours
- RV Refrigerator (50W DC): up to 76.8 hours
Experience Superior Battery Protection
Engineered for safety and durability, the Dumfume 12V 314Ah LiFePO₄ Battery is built to deliver reliable performance even in the harshest conditions. With advanced protective systems, rugged construction, and certified quality, it ensures peace of mind wherever power is needed.
Advanced BMS Protection
Equipped with an intelligent BMS that provides multi-layer protection against over-charge, over-discharge, over-current, and short circuit, ensuring safe and stable operation at all times.
Heat & Cold Resistant
Low-temp cut-off stops charging below 32°F and discharging below -4°F, while high-temp tolerance up to 149°F/158°F ensures safe, reliable performance in extreme conditions.
Certified & Trusted
Tested to meet strict global standards with UL, CE, FCC, UN38.3, and RoHS certifications — guaranteeing proven safety and long-lasting reliability.
Power That Lasts Longer, Costs Less
Up to 15,000 cycles with a lifetime cost as low as $0.02/kWh. AC to 12V fast charging—full charge in 1.5 hrs, plus whisper-quiet 18 dB operation for reliable, affordable energy every day.
Tech Specs
Battery
- Cell Type: LiFePO4
- Nominal Voltage: 12.8V
- Capacity: 314Ah
- Energy: 4019.2Wh
- Cycle Life: ≥4000 cycles (to 80%o capacity)
- BMS: Built-in Smart BMS with Full Protection
- Max Expansion: Up to 4S4P
BMS Details
- BMS Rated Current: 200A
- Max Continuous Charge Current: 200A
- Max Continuous Discharge Current: 200A
- Peak Discharge Current: 500A(5 seconds）
- Max Continuous Output Power: 2560W
- Protection Functions: Over-charge,Over-discharge,Over-current,Short-circuit,Over-temperature Protection
Performance
- Charge Voltage: 14.6V
- Recommended Charge Current: 50–100A
- Charging Method: CC/CV
Temperature
- Charging: 32°F – 149°F (0°C – 65°C)
- Discharging: -4°F – 158°F (-20°C – 70°C)
- Storage: 14°F – 113°F (-10°-45°C)
Design
- Waterproof Rating: IP65
- Case Material: ABS Plastic
- Size: 13.78 × 7.6 × 9.84 in
- Weight: 57.28 lbs (26 kg)
Others
- Short Circuit Protection: Supported
- Shipping SOC: 40%
- Warranty: 5 Years
FAQs
Yes. Our 12V 314Ah LiFePO4 batteries support up to 4 in series (4S) for 24V, 36V, or 48V systems, or 4 in parallel (4P) to expand capacity. For best results, please use the same model and age of batteries.
No. These batteries are designed for energy storage only. Do not use them for starting devices, golf carts, or jacks.
Our LiFePO4 batteries support AC to 12V charging (dedicated charger required).
12V 100Ah and below: ~1 hour full charge
12V 200–300Ah: ~1.5 hours full charge
12V 400Ah: ~2 hours full charge
12V 600Ah: ~3 hours full charge
During charging, the temperature may reach around 50°C, which is normal.
The 12V 314Ah LiFePO4 battery offers 4,000 cycles, depending on depth of discharge and usage conditions. This provides a service life far exceeding lead-acid batteries.
Yes. The battery has an IP65 waterproof rating and a built-in 200A BMS for protection against overcharge, over-discharge, overcurrent, short circuit, and temperature extremes. It’s reliable for RVs, solar storage, marine, and off-grid applications.
Each unit weighs about 57.28 lbs (26 kg) and measures 13.78 × 7.6 × 9.84 inches. Compared with lead-acid batteries of the same capacity, it’s much lighter and easier to install.