Compact & Powerful:Dumfume 12V 300Ah (314Ah) LiFePO4 Deep Cycle Lithium Battery Weighs Only 57 lbs,1/3 The Weight Of Lead-Acid Battery,energ
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About this item
Compact & Powerful: Dumfume 12V 300Ah (314Ah) LiFePO4 Deep Cycle Lithium Battery Weighs Only 57 lbs,1/3 The Weight Of Lead-Acid Battery,energy density nearly double lead-acid.With An Impressive Energy Capacity Of Up To 4019.2Wh. Its Compact Design Is Easy To Carry And Install, Delivering Maximum Functionality In Minimum Space. Ideal For RV, Camper, Travel Trailer, Solar Energy Storage, Home Solar Power Setup, Backup Power, Off-Grid Systems, Boat, And 12V Lithium Battery Applications.
Extra Long Cycle Life: Crafted With Premium Lithium Iron Phosphate Batteries,Dumfume 12V 300Ah (314Ah) Lithium Iron Phosphate Battery Boasts A Lifespan Of Up To 10 Years. It Supports 4,000 Cycles At 100% DOD And Up To 15,000 Cycles At 60% DOD, Which Is More Cost-Effective Than Traditional Lead-Acid Batteries (Only Provide 200-500 Cycles) With Significantly Fewer Replacements.300ah lithium battery Solution Highlights Its Durability And Reliability, Making It The Best Choice For Long-Term Use.
Safety & Durability: Dumfume 12V 300Ah (314Ah) Rechargeable Lithium Iron Phosphate Battery Have Passed Relevent Certifications. Built-In 200A Battery Management System (BMS) Provides Overcharge, Overdischarge, Overcurrent, Overheat And Short Circuit Protection. lithium battery 12v 300 With High/Low Temperature Automatic Cut-Off Function To Ensure Safe Charging/Discharging.
IP65 Waterproof & 4s4p Flexible: Crafted with a high-strength, impact-resistant IP65 waterproof ABS casing, Dumfume 300Ah (314Ah) deep cycle battery excels in heat, weather, and flame resistance. This 12v lithium battery ensures stable, lasting power in harsh environments and supports 4S4P (4 series, 4 parallel) connections for powerful energy expansion. Ideal for home energy storage, power walls, RVs, campers, and fishing.
5-Year Warranty & Support: Dumfume 12V 300A (314Ah) LiFePO4 Battery is backed by a 5-year warranty and customer support. For 4S4P expansion, use 12 volt lithium battery of the same model, voltage, and capacity—plug-and-play. Compatible with 14.6V LiFePO4 chargers and solar charge controllers. 300 ah lifepo4 battery Ideal for RVs, solar systems, off-grid applications, and backup power. Customer support covers questions regarding charging, installation, and system-related issues.
Compact & Powerful:Dumfume 12V 300Ah (314Ah) LiFePO4 Deep Cycle Lithium Battery Weighs Only 57 lbs,1/3 The Weight Of Lead-Acid Battery,energ
Ranked #99 in Automotive · 4 things we like
Quick answer The 12.8V 314Ah Lithium LiFePO4 Battery by dumfume scores 8.8/10 with us. Amazon owners rate it 4.4 out of 5 across 796 reviews, in line with the 4.4 average of the 233 products we track in Automotive. It was listed from $156.96 to $849.96 on Amazon depending on the option when we last checked in September 2026.
Compact & Powerful:Dumfume 12V 300Ah (314Ah) LiFePO4 Deep Cycle Lithium Battery Weighs Only 57 lbs,1/3 The Weight Of Lead-Acid Battery,energy density nearly double lead-acid. With An Impressive Energy Capacity Of Up To 4019.2Wh. Its Compact Design Is Easy To Carry And Install, Delivering Maximum Functionality In Minimum Space.
Ideal For RV, Camper, Travel Trailer, Solar Energy Storage, Home Solar Power Setup, Backup Power, Off-Grid Systems, Boat, And 12V Lithium Battery Applications. Extra Long Cycle Life: Crafted With Premium Lithium Iron Phosphate Batteries,Dumfume 12V 300Ah (314Ah) Lithium Iron Phosphate Battery Boasts A Lifespan Of Up To 10 Years. It Supports 4,000 Cycles At 100% DOD And Up To 15,000 Cycles At 60% DOD, Which Is More Cost-Effective Than Traditional Lead-Acid Batteries (Only Provide 200-500 Cycles) With Significantly Fewer Replacements.300ah lithium battery Solution Hig
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Compact & Powerful:Dumfume 12V 300Ah (314Ah) LiFePO4 Deep Cycle Lithium Battery Weighs Only 57 lbs,1/3 The Weight Of Lead-Acid Battery,energy density nearly double lead-acid.With An Impressive Energy Capacity Of Up To 4019.2Wh. Its Compact Design Is Easy To Carry And Install, Delivering Maximum Functionality In Minimum Space. Ideal For RV, Camper, Travel Trailer, Solar Energy Storage, Home Solar Power Setup, Backup Power, Off-Grid Systems, Boat, And 12V Lithium Battery Applications.
Extra Long Cycle Life: Crafted With Premium Lithium Iron Phosphate Batteries,Dumfume 12V 300Ah (314Ah) Lithium Iron Phosphate Battery Boasts A Lifespan Of Up To 10 Years. It Supports 4,000 Cycles At 100% DOD And Up To 15,000 Cycles At 60% DOD, Which Is More Cost-Effective Than Traditional Lead-Acid Batteries (Only Provide 200-500 Cycles) With Significantly Fewer Replacements.300ah lithium battery Solution Highlights Its Durability And Reliability, Making It The Best Choice For Long-Term Use.
Safety & Durability: Dumfume 12V 300Ah (314Ah) Rechargeable Lithium Iron Phosphate Battery Have Passed Relevent Certifications. Built-In 200A Battery Management System (BMS) Provides Overcharge, Overdischarge, Overcurrent, Overheat And Short Circuit Protection. lithium battery 12v 300 With High/Low Temperature Automatic Cut-Off Function To Ensure Safe Charging/Discharging.
IP65 WATERPROOF & 4S4P FLEXIBLE: Crafted with a high-strength, impact-resistant IP65 waterproof ABS casing, Dumfume 300Ah (314Ah) deep cycle battery excels in heat, weather, and flame resistance. This 12v lithium battery ensures stable, lasting power in harsh environments and supports 4S4P (4 series, 4 parallel) connections for powerful energy expansion. Ideal for home energy storage, power walls, RVs, campers, and fishing.
Is the 12.8V 314Ah Lithium LiFePO4 Battery worth buying?
Yes, it is one of the stronger picks in its group. We score the 12.8V 314Ah Lithium LiFePO4 Battery 8.8 out of 10. Amazon owners rate it 4.4 out of 5 across 796 reviews, in line with the 4.4 average of the 233 products we track in Automotive.
How much does the 12.8V 314Ah Lithium LiFePO4 Battery cost?
It was listed from $156.96 to $849.96 on Amazon depending on the option when we last checked in September 2026. Amazon prices change daily, so use the price button on this page to see the current figure.
What options does the 12.8V 314Ah Lithium LiFePO4 Battery come in?
Amazon lists 11 options. Set name: 12.8V 200AH, 25.6V 100AH, 2PCS 12.8V 314Ah, 2PCS 25.6V 100AH, 12.8V 100AH, 12.8V 150AH Max, 12.8V 314AH, 2PCS 12.8V 100AH and 3 more. Pick an option on this page and the button opens exactly that model.
What are good alternatives to the 12.8V 314Ah Lithium LiFePO4 Battery?
Similar, well-rated products in our catalog: OXILAM Jump Starter 6000A (9.2/10, 4.6 stars from 3,029 owners); Schumacher Electric 1000 Peak Amp 12V Portable (9.0/10, 4.5 stars from 1,173 owners); AstroAI S8 Car Battery Jump Starter 1500A (8.8/10, 4.4 stars from 12,142 owners).
Breakdown from the 10 most helpful reviews we imported.
T
the peanut gallery
Verified purchaseJanuary 26, 2026
a good no frills lifepo4 battery
I have purchased a total of 4 batteries. 2 from Amazon and 2 from the dumefume web site directly. they were purchased 1 battery a month. first and last purchases were from Amazon. the 2 that came directly from dumfume had a 13.0 and 12.9 volts. they both charged to 100 percent with no problems. the 2 that came from Amazon had 12.2 and 12.4 volts. they would not charge. i hooked another fully charged lifepo4 battery in parallel to the non charging battery. i then hook a 20amp charger to the non charging battery. it then charged fine. i waited 24 hours then recharged each of them. i was surprise
M
Martine
Verified purchaseJuly 25, 2026
Excellent Battery at a good price. Massive power for my RV from two of these 300 AH batteries.
FYI - I am unable to see the negative reviews on this product and getting this on many other products too; the 1-star reviews cannot be seen by customers. Maybe its an Amazon glitch, not sure. However, the seller delivered on time, at a good price, and a good product, no issues there. Please fix the review issue! That is not acceptable.I have installed these batteries and they work very well. Initially, I saw a Deep Discharge msg on my Victron Battery Monitor and got worried, but my solar installer fixed the software issue with a reset. Now they show 100% capacity, it all works extremely well.
A
Ade
Verified purchaseMay 26, 2026
Reliable Power and Peace of Mind for My Solar Setup
I wanted to wait a little before leaving my review because I had been traveling and really wanted to test these batteries properly before recommending them. I bought them for my home solar setup with an inverter and solar panels, and honestly, they have exceeded my expectations.The 24V 100Ah capacity is definitely noticeable. They provide very stable power and last a long time for daily use in my system. Connecting them to the inverter was simple, and everything worked smoothly right from the start, which I really appreciated because I didn’t want any complications.While I was away, it gave me
P
Paul Shearman
Verified purchaseSeptember 4, 2026
Packs a lot of punch for the money.
After three months of successfully using the first two. I have just received two more giving me 1228ah. Great batteries. Powered my 12v Gidrox 12k BTU AC for 13hrs no problem. 27hrs is now displayed on my panel.
A
azskies
Verified purchaseMarch 22, 2025
Early review... Adjusted review
This is a review after using the battery for just over 1 year. It's dead, It started failing to supply any kind of useful power in my campervan. Would gradually go dead overnight with only a 3.5 amp draw on the battery from a 12vdc refrigerator. The solar panels would recharge it during the day but it kept charging to a lower value every day. I put a 10 amp LiFePo4 charger on it at night to help but it would only charge to 13.2 vdc. Today it drained totally in within a couple hours of the sun going down. I believe the BMS is in low voltage cutoff as it outputting nothing. Disconnected all load
K
KC
Verified purchaseSeptember 7, 2026
Great Value for Emergency Power!
Very good deep cycle batteries. Shipped without full charge. Recommend purchase of a newer charger that specifies for LifePO4 batteries. Planned use is for a water well pump and freezer. Gonna need more solar panels for these babies!
C
chad
Verified purchaseSeptember 11, 2026
Must fully charge first!
Customer service was crucial. I was very disappointed with my batteries performance and thought I had got a dud. I'm guessing I am not the only one who did not know about FULLY charging the battery to balance out the cells. In my case this took a day and a half of solar and A/C charging. Now the battery performs 10x better than it did! Be advised, fully charge to 14.6 before use and with no load on the battery. After that, let the battery sit a few hours. This will balance the cells and you are good to go! I learned this through days of communication with customer service. Hopefully I just sav
B
bskousen
Verified purchaseNovember 7, 2025
Outstanding deal for the price
I installed a 100AH lifepo4 battery in my tear drop trailer in 2020. It was a great upgrade from the original lead acid battery. I supplemented my camping with a 200 watt solar panel to keep my 100AH lifepo4 battery fully charged. The battery powered lights, a propane detector, 12v fridge, 43 inch TV, stereo, and a propane heater. With my solar panel, I could camp without hookups indefinitely. However, if I didn't use solar to charge the battery, I wouldn't be able to last more that two nights without beginning to feel nervous. Plus, I was always looking for campsites that had some sun. In the
Customer reviews are shown as published on Amazon and are not written by Do Best Deal.
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