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12.8V 314Ah LiFePO4 Lithium Battery With 4019.2Wh Energy
✅ In stock
F
Grade
Analysis Confidence
81%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 25, 2026 5:33 PM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 💰The current price is slightly above the going rate for this product — worth watching for a drop.
- 🏷️The retail sticker price has been slashed by 42% — a steep markdown from the official listing.
- 📉It has been quite a while since a more competitive price was available, lending today's offer solid comparative value.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
0/20
Deal Strength
0/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
Li Dumfume
🚚 Shipping
Free Shipping
Product Details
✓【Unmatched Power & Safety with A-Grade Cells】DUMFUME premium 12V 300Ah lithium battery uses automotive-grade A+ LiFePO4 cells and a 200A BMS for full protection (overcharge, over-discharge, temperature). With 4000+ cycles at 80% DOD, this 300Ah LiFePO4 battery lasts 3-5x longer than lead-acid. A supremely reliable 12V rechargeable battery for RV lithium battery systems and solar battery 12V 300ah setups.
✓【High Capacity for Total Energy Independence】Unlock true off-grid freedom! This powerhouse 12V lithium battery 300Ah (actual 314Ah) delivers a massive 4.01 kWh of energy. Perfect for powering a home backup system, an RV, or critical devices, this deep cycle battery 12V provides consistent, long-lasting power. It's the ultimate 12V RV battery and solar battery solution, offering a lifespan 30 times longer than traditional options.
✓【High Capacity for Total Energy Independence】Unlock true off-grid freedom! This powerhouse 12V lithium battery 300Ah (actual 314Ah) delivers a massive 4.01 kWh of energy. Perfect for powering a home backup system, an RV, or critical devices, this deep cycle battery 12V provides consistent, long-lasting power. It's the ultimate 12V RV battery and solar battery solution, offering a lifespan 30 times longer than traditional options.
✓【Scalable Design for Demanding Applications】Your power, your way. DUMFUME versatile LiFePO4 battery 12V 300Ah（314ah） is designed to grow with your needs. It supports configurations up to 4S4P to build a 51.2V / 64.3 kWh energy system. Ideal for powering appliances over 2000W, it's the perfect upgrade for large solar arrays, off-grid homes, or high-demand RV use—the building block for your ultimate lithium battery 12V 314Ah power system.
✓【5-Year Warranty for Deep Cycle Use】Invest with confidence. Our Dumfume 300Ah (314Ah) lithium battery is backed by a strong 5-year warranty. Engineered specifically as a 300Ah deep cycle battery, it is perfect for renewable energy storage and RV applications. Note: Designed for sustained energy delivery and is NOT for engine starting. Choose the LiFePO4 12.8V 314Ah battery that guarantees performance for your journey toward energy self-sufficiency.
⚙️ Specifications
Brand
dumfume
Size
12V314AH(15.16×7.6×9.84)
Manufacturer
dumfume
Item Weight
25.98 kg
ASIN
B0G5XL85BX
Customer Reviews
4.4 4.4 out of 5 stars (432) var dpAcrHasRegisteredArcLinkClickAction; P.when('A', 'ready').execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( 'acrLink-click-metrics', 'click', { "allowLinkDefault": true }, function (event) { if (window.ue) { ue.count("acrLinkClickCount", (ue.count("acrLinkClickCount") || 0) + 1); } } ); } }); P.when('A', 'cf').execute(function(A) { A.declarative('acrStarsLink-click-metrics', 'click', { "allowLinkDefault" : true }, function(event){ if(window.ue) { ue.count("acrStarsLinkWithPopoverClickCount", (ue.count("acrStarsLinkWithPopoverClickCount") || 0) + 1); } }); }); 4.4 out of 5 stars
Best Sellers Rank
#44,790 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden) #213 in 12V Batteries #596 in Solar & Wind Power
Date First Available
December 9, 2025
Manufacturer Part Number
12.8V 314AH
Voltage
12.8 volts
Package Dimensions
15.04 x 9.84 x 7.6 inches
