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
Sep 25 – Sep 30
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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, Marine, trolling motor, and 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.Can be used for trolling motors with power less than 2 kW.
- 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: 57.3 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:
Sep 25 – Sep 30
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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Similar Products
Top Amazon Reviews
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 300Ah
Number of Items: 1
Good power. Rate of charge good IF you buy the right charger. Functionality good. Weight as expected with very nice handles. Terminals very easy to connect to. Using it daily for 30+ days without an issue.
Reviewed in the United States on July 8, 2025 by Birdman
Size: 12.8V 100Ah mini(2 Pack)
Number of Items: 2
I love these batteries they work great
Reviewed in the United States on July 9, 2025 by Christopher Collins
Size: 12.8V 300Ah
Number of Items: 1
This is a awesome battery that's performed spectacularly. However I don't believe it's a 300 amp hour battery I believe it's old components that make up a 280 amp battery. It's okay for my years but I would be suspect of it actually being a 300 amp hour battery
Reviewed in the United States on May 18, 2025 by Michael J.
Size: 12.8V 300Ah
Number of Items: 1
Lifepo4 batteries have become surprisingly affordable in the last couple years and Dumfume is one of the brands leading the pack. I was amazed at how much power this thing holds. My wife and I were able to camp 4 days on 500 watts of solar and this battery with NO generator, so that's pretty awesome. It's always risky buying a budget product from a new brand but I can say these sellers stand by their product. While I did end up returning the battery because of a balancing issue I have a feeling this problem is fairly rare and I would definitely consider buying this brand again, especially if they add bluetooth. Most importantly, they stand by their product and work hard to make things right for the customer. This brand is a great value, in my opinion and if you are familiar with Lifepo4 you know what I'm talking about.
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Reviewed in the United States on July 17, 2025 by Digital 14
Size: 12.8V 300Ah
Number of Items: 1
This battery was charged to 13.34vdc; thus I connected it to a 12v dc to 120v ac pure sine wave inverter that was powering a cooling fan. I measured the voltage and current out of the battery every hour; it was 13.33vdc and 4.58amps at start on July 15th 2025 at 4am;(Photo attached); At 5am Battery voltage 13.25 vdc; ampage output was 4.68 amps; At 6am Battery voltage was 13.20vdc; output amps was 4.43 amps At 7am Battery voltage was 13.14vdc, output amps 4.47; thus because the output voltage is less than the 50% capacity value of 13.18vdc, I ended this test!! The results proved that since this battery provided 13.58 amps for 3 hours; it's tested Ah rating is (13.58÷3)and(4.53×2)=9.06Ah!! Which is far less than 300Ah or 5 amps for 30 hours until 50% of capacity, as advertised!!
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Reviewed in the United States on July 15, 2025 by Willie Shaw Willie Shaw
Size: 12.8V 100Ah mini(2 Pack)
Number of Items: 2
I bought 4 of these batteries for a total of 100ah @ 51.2v. I just ordered their, single, 51.2v battery as well. So far I've had no issues whatsoever. I've used an electric kettle(1500w for 10min) to boil water, an air fryer(1500w for 30min) to fry some wings, and the batteries delivered without a hitch. The batteries are so lightweight that moving them around from delivery to installation was really easy. They don't have Bluetooth, however, but I use victron components to monitor as much as I can. At this price, you'd be making a mistake not to buy.
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Reviewed in the United States on June 9, 2025 by SL2122 SL2122
Size: 12.8V 100Ah(2 Pack)
Number of Items: 2
good product at low price, just with it had a monitoring program
Reviewed in the United States on July 23, 2025 by Patricia A. Gaspar