Search  for anything...
dumfume

12V 314Ah Lithium LiFePO4 Battery With 200A BMS

Based on 866 reviews
Condition: New
Checking for the best price...
$439.96
Save $730.03 was $1,169.99

Buy Now, Pay Later

As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

Availability: In Stock.
Fulfilled by Dumfume-US
Arrives Thursday, Nov 5
Order within 17 hours and 4 minutes

Available payment plans shown during checkout

Protect Your Purchase

Easy claims online, fast replacements, no fees

Checking for protection plans...

Recently Viewed

At a glance

Condition
New
Set
12.8V 314AH
Weight
27.6 kg
Vehicle Service Type
RV
Size
(15.16×7.6×9.84)12V314AH
Voltage
12.8 volts
Terminal
M8

Features 4

  • 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.
  • 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 capacityplug-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.

Description

Our batteries is equipped with a built-in BMS. It prevents overcharging, over-discharging, overcurrent, short circuits, overheating. The BMS automatically balances the cells to extend their service life and safely restores operation following a fault without the need for manual reset. From 12V~48V modular system,Consult Dumfume 24/7 for compatibility verification. Place vertically; the top of the battery (i.e. the positive & negative terminals) must not face downwards 12V 150Ah 24V 100Ah 12V 100Ah Mini 12V 200Ah 12V 100Ah 12V 600Ah 12V 20A Lithium Battery Do you have any advice on series and parallel connections? Before connecting batteries in series or in parallel for the first time, please ensure that each battery has been fully charged individually (only connect batteries of the same make and model). How should the batteries be positioned? Place vertically; the top of the battery (i.e. the positive and negative terminals) must not face downwards Regarding transport Please note that in some remote rural or island areas, there may be no logistics channels available for delivery. We apologise for any inconvenience this may cause. Selecting the power rating of an inverter You should choose an inverter with a rated power output that matches that of the battery (for example, for a 12V 200Ah battery, an inverter with a rated power of approximately 2000W would be suitable). Can it be used on board? This battery can be used as an auxiliary battery to power on-board equipment. Please store the battery in a dry place and avoid direct contact with water. Under no circumstances should this battery be used as a starter battery.

Specs 19

Brand dumfume
Vehicle Service Type RV
Size (15.16×7.6×9.84)12V314AH
Voltage 12.8 volts
Battery Cell Composition Other Than Listed
Item Weight 27.6 kg
Terminal M8
Battery Capacity 314 Ah

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Nov 5

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

a good no frills lifepo4 battery
Set name: 12.8V 150AH
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 surprised that it took another 10-15 minutes of 20amp to top of all 4 batteries. This process was done when each battery had arrived. note that one of the batteries from Amazon came in with a hole in the box. the battery appeared not to be dented or damaged. PRO: 1: this dumefume 150ah lifepo4 battery is priced good. 2: i like the fact that it is not a smart battery. i have no cell phone and did not want or need the blue tooth feature. 3: external seems to appear to be well built does not feel cheap. no clue on interior. 4: they are light weight for the size and amperage of the battery. CON: 1: did not like the fact that i had 50% of the batteries were not able to be charged and needed a "jump" charge from another battery to get it to work. a little concerned on the bms settings because of this. i also wondered if this was caused from used cells or not. 2: no more room in the house for another battery purchase. NOTE: i have purchased these batteries to supply additional power when attached to a power station. they work great in recharging those power stations. these batteries are being used a power storage and will be sitting on the shelf for an emergency. it will be interesting to see how they hold up over time. i would have liked to see a teardown of the 150ah. there are a few online for the other amp hour versions. CONCLUSION: i like this battery. its a new frills, non smart lifepo4 that feels good to hold. dumfume does have good deals both on Amazon and there website from time to time. If i had room in my home and/or needed another battery i would purchase it again. only minor issue is the charging of this battery and long term (calendar time) will "age" well. i am happy with the purchase. ... show more
Reviewed in the United States on January 26, 2026 by the peanut gallery
Reliable Power and Peace of Mind for My Solar Setup
Set name: 2PCS 25.6V 100AH
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 peace of mind knowing the system would continue running reliably, and when I came back everything was still working perfectly. So far, they’ve performed extremely well and feel like a great investment for my home. The only thing I would improve is including a more detailed instruction manual for people who are not very experienced with solar installations, but aside from that, I’m very happy with this purchase. I would definitely buy them again. ... show more
Reviewed in the United States on May 26, 2026 by Ade
Very satisfied with these batteries
Set name: 12.8V 150AH
I have four of the 150ah units and am extremely pleased. All have exceeded rated capacity by about 7ah when new (makes sense as this is basically 1/2 of their 314ah battery). I have to physically carry the battery from point of use to charging station- approx 100yds each direction across uneven ground. I could do it, but it wasn't the favorite part of my week. I needed easier portability than I had with my 300ah (non Dumfume) batteries that weigh between 66# -72#, and these 150's weigh in at 24.5# and are easily moveable. I have an older160ah battery from another brand and it weighs 37#, and my shoulders can really feel the difference that extra weight makes. I've been impressed with the quality, and they are working well in my application. I charge at 50A using a smart charger usually and they seem to like that rate, and I have never had an issues with getting them to accept charging when new. My oldest Dumfume battery is about 1 year old and after a year of twice weekly charging, it still exceeds rated capacity, so I'm expecting good things from all my Dumfume batteries. So far, so good. Simple battery. High value. And in my case, life improving. Lastly, one of my batteries came in damaged, appearing to have been hit by a forklift fork that sliced through the box and cracked the battery case. Dumfume sent a replacement quickly with no hassle at all. Very pleased. I'll be buying 12 more batteries over the next couple of months (4ea-150/314/600ah) and unless something changes, Dumfume will be my go to for all of them. ... show more
Reviewed in the United States on March 1, 2026 by T. Griffin
Well made batteries at a good price
Set name: 2PCS 12.8V 314Ah
Good batteries at a good price. One came DOA, and after I got a replacement for it, I finished cracking it open to see if it could be repaired in some way. (Do not do this unless you know exactly what you're doing as it is incredibly dangerous) While what the shipper did to it had unfortunately rendered it unsalvageable, I was surprised by just how well these are made. Ring terminals and screws rather than the poorly soldered connections common on 'budget' batteries, lots of foam padding that is properly glued on, and there was liberal use of some kind of rubber or silicone adhesive on anything that could come loose. I'm pretty sure it had to have fallen out of a moving truck for it to come DOA. As for the functional ones, I've cycled them a few times and even under a decent load they always pull at least rated capacity. But, that is to be expected considering that they're actually 314Ah cells under the hood. Whether that's what Dumfume intended, or if that's just what they got their hands on at the time, I don't know and I'm definitely not about to complain about it. The only issue I have with these is the odd size, and I knew that could be an issue going into it. The only battery box I've found that will fit these without being ludicrously large is a double GC2/Group 24 box, which is still a good bit too long for them. You'll have to do something custom if you want them fully enclosed. All in all though, I would not hesitate to buy more of these or another Dumfume battery. Like I said at the beginning, they are good batteries at a good price. ... show more
Reviewed in the United States on December 8, 2025 by Austin L
Early review... Adjusted review
Set name: 12.8V 314AH
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 loads and then connected the charger but so far it does not seem to be taking a charge. Very disappointed because up to this point it had performed very well. So the rating goes down to one star. According to Dumfume's website the 5 year warranty is only for batteries purchased from them directly, not through Amazon. So one star it is... Early review since I just installed it. It arrived very well packaged and on time. Came just slightly discharged as expected but once installed in my system the 500 watt panels brought it up to full charge within a few hours. Have not tried to seriously discharge it but it keeps my Bodega 12vdc refrigerator and 800 watt microwave powered without issue and recharges quickly once the sun comes up. Came with extra bolts and plastic color-coded protective bolt covers. Quality seems to be excellent. I purchased it based on a review I watched on Youtube that involved a full teardown and full charge/discharge test that also tested the high/low cutoffs for charging and temp over limits. It passed all tests… ... show more
Reviewed in the United States on March 22, 2025 by azskies
Dumfume 100ah Mini, good!
Set name: 12.8V 100AH MINI
Bought two back in February for a project. They do work as claimed, no issues. The last major use was Ham radio Field Day exercise. That was 24 hour usage and they performed as expected. They are small, light, and work. I would buy again.
Reviewed in the United States on July 10, 2026 by Alli
Great battery
Set name: 12.8V 150AH
Just charged fully and ready to setup also just ordered another one.
Reviewed in the United States on June 30, 2026 by Jose Omar Villarreal
Good battery all rounder
I've received this battery in a good package 📦, well put together..it work well I charge it first thing, think it took about 9hr or so to full charge, some how it limits me (BMS) only to ONLY A 12OO/1300 WATTS draw.. which is not what, I expected.. with 200amp bms, ive 2500watt inverter..
Reviewed in the United States on June 13, 2026 by guy wilson
How it works
Checking for best price...