12V 300Ah Lithium LiFePO4 Battery,200A BMS 3840Wh Rechargeable Lithium Iron Phosphate Battery for Solar Energy Storage,Backup Power,RV,Camping
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Availability:
In Stock.
Arrives
Thursday, Nov 20
Size: 12.8V 300Ah
Number of Items: 1
Features
- Compact & Powerful: Dumfume 12V 300Ah LiFePO4 battery Weighs Only 57 lbs, 1/3 The Weight Of A Comparable Lead-Acid Battery. Its Energy Density Is Nearly Double That Of An Equivalent Lead-Acid Battery, With An Impressive Energy Capacity Of Up To 3840Wh. Its Compact Design Is Easy To Carry And Install, Delivering Maximum Functionality In Minimum Space.Ideal for RV, Solar Energy Storage,Backup Power,Off-Grid Systems.
- Extra Long Cycle Life: Crafted With Premium Lithium Iron Phosphate Batteries,Dumfume 12V 300Ah 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.Dumfume lifepo4 battery Solution Highlights Its Durability And Reliability, Making It The Best Choice For Long-Term Use.
- Safety & Durability: Dumfume 12V 300Ah Rechargeable Lithium Iron Phosphate Battery Have Passed Relevent Certifications. Built-In Battery Management System (BMS) Provides Overcharge, Overdischarge, Overcurrent, Overheat And Short Circuit Protection. With High/Low Temperature Automatic Cut-Off Function To Ensure Safe Charging/Discharging.
- Note:Dumfume battery Under Various Temp/Humidity Measurement Methods And Instruments, Voltage And Current May Deviate By 1%~5%. Charge/Discharge Battery Once Every 6 Months To Prevent Damage From Disuse.Please Feel Free To Contact Us If You Encounter Any Problems During Use!
Brand: dumfume
Size: 12.8V 300Ah
Terminal: M8
Manufacturer: dumfume
Manufacturer: dumfume
Brand: dumfume
Model: DFBattery-12V300A
Item Weight: 60.7 pounds
Item model number: BS95356-au
Manufacturer Part Number: S95356
Date First Available: January 2, 2025
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Nov 20
This item is non-returnable:
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
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Top Amazon Reviews
Size: 12V100Ah MINI
Number of Items: 1
There batteries came partly charged and well-packed. I bought them to replace 2 Battle Born 100 AH LiFePo batteries that were 7 years old and not putting out full power any more. The Dumfumes are working great, charging fast and effortlessly powering my microwave through a 2000 watt inverter with little voltage drop. Check out Will Prowse's tear down on YouTube where he finds them of very high quality! These batteries are an outright bargain.
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Reviewed in the United States on July 12, 2025 by Denis L.
Size: 12V100Ah MINI
Number of Items: 1
These things are a huge upgrade and perfect for my boat. I never have to recharge them and they last MULTIPLE trips out onto the lake, even with music blasting and using my trolling motor for a couple of hours. I ended up also upgrading the entire electrical on my boat to these, besides the starter battery because these are not recommended for that. Also I had to make a separate circuit so that the engine doesn't charge this battery because its an older style motor with a rectifier that isn't supposed to charge a battery like this.
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Reviewed in the United States on July 31, 2025 by Amazon Customer
Size: 12.8V 200Ah
Number of Items: 1
We purchased this battery to replace the lead acid battery our camper came with. It is a big battery, but I was able to fit it under the bench in our camper where the rest of the wiring was. I was able to go two days of boon docking while not trying to conserve battery life before charging and never got below 40% battery life. We were running our fridge and hot water tank on propane (both still use a little electricity to light), two vent fans, lights, at night, the radio, charge or phones, my dad's hearing aids, apple watches, air pods, and the water pump. I watched some YouTube reviews on other size battery's this company offers, and they all seem to be built really well. This brand has ender temp and over temp protection that actually works. I bought this to use, not review so I will not be tearing mine apart to confirm this, but I watched multiple videos from multiple sources. I do wish I had the extra money to buy the 300-ah battery. It is smaller and has a larger capacity, but for $268.00 I couldn't pass up this deal. If I decied to upgrade again, I will probably buy two of the 300-ah battery and move this one to my popup.
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Reviewed in the United States on June 28, 2025 by Amazon Customer
Size: 12.8V 100Ah mini(2 Pack)
Number of Items: 2
Excellent, solor saturation 80 to 93 during day. Fit perfectly ( Mini), Light also . So far would buy again,
Reviewed in the United States on September 4, 2025 by Hutch Haskell
Size: 12.8V 300Ah
Number of Items: 1
Great price, great performance, and amazing support We bought a new camper with a 12v fridge, two lead-acid batteries, and 200w of solar. On our first trip the batteries didn’t even last through the night, so I started looking into lithium. Dumfume had solid reviews and was half the price of the big brands, so I gave it a shot. The difference was huge. The Dumfume battery kept the fridge running all night—even on cloudy days—charged much faster than my old setup, and even let me run the Keurig in the morning without issues. It recharged to full in about 20 minutes. I realized I didn’t even need a second solar panel. On a later trip the battery failed unexpectedly and wouldn’t charge. I contacted Dumfume through Amazon and was impressed: support responded quickly, walked me through troubleshooting, and when the battery wouldn’t recover, they shipped me a replacement by FedEx 2-day so I’d have it before my next camping trip. I didn't expect that. I expected maybe a partial refund at the most. I was in a real bind too because my next trip was in a week and all the other batteries I saw on Amazon wouldn't be shipped in time. For the price, performance, and the level of support, this battery is absolutely worth it.
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Reviewed in the United States on August 23, 2025 by Ed W
Size: 12V100Ah MINI
Number of Items: 1
High quality and well built. Works great for my trolling motor setup.
Reviewed in the United States on September 17, 2025 by R. Craft
Size: 12.8V 200Ah
Number of Items: 1
Well i have not finish setting up yet. but so fare it is a great battery long lasting and multi purposed a good product of the 21 century and getting Better.THANKS AMAZON for being a connecting force and the market today.appreciate it
Reviewed in the United States on August 13, 2025 by Byron Brown
Size: 51.2V 100Ah
Number of Items: 1
The battery is advertised at 48v 100 ah. When received, I charged at a constant current, constant voltage, with a desktop power supply set to 58.4v and 5.0 amps until the BMS shut down the charge at 55.2v. I then discharged at a constant current of 2.75 amps DC (well within tolerance). The batterys BMS shutdown the discharge at 52.5v well before the max discharge of 40 v and only allowed discharge of 78 ah total. A second test was run yeilding almost exact result. The vendors replys were all met with exact answers and additional testing but all they claimed was that was acceptable due to line loss and inefficiency. 22 Ah losses are not negligible, and i did not utilize any dc to ac conversion or high discharge rates, nor did i have large line losses though 12 in of wire at 2.75 amps, and i feel their is something discrepant, or the battery was mis-represented in the ad. Beware no returns are accepted sobif you get a bad one you are out 600+ dollars without any recourse. UPDATE The seller eventually sent a return shipping lable to correct this issue. Prior to returning, i decided to cycle the battery fully a few more times, and low and behold, the bms began to function properly. I am now getting the advertised output, (actually better 106ah). Needless to say if it keeps functioning as advertised this is an excellent value.
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Reviewed in the United States on June 24, 2025 by Brian N. Brian N.