12V 300Ah Lithium LiFePO4 Battery,200A BMS Max.3840W Load Power,Rechargeable Lithium Iron Phosphate Battery for Solar Energy Storage,Backup Power,RV,Camping,Off-Grid
$339.96
Price: $339.96
(as of Oct 03, 2025 17:17:48 UTC – Details)
From the brand
About Dumfume
Dumfume: Iron-Clad Commitment. Green Energy. Wonderful Living.
In the tide of energy innovation, Dumfume Dumfume specializes in lithium iron phosphate (LiFePO4) batteries. “Improving Lives” is our ultimate vision. Dumfume believes technology’s value lies in serving humanity and creating a brighter life. Our efficient, safe, and long-lasting LiFePO4 batteries are quietly integrating into every facet of living.
LiFePO4 Battery
LiFePO4 Battery
LiFePO4 Battery
LiFePO4 Battery
LiFePO4 Battery Charger
LiFePO4 Battery and Charger
How safe are Dumfume LiFePO4 batteries?
Our batteries feature built-in BMS protection against overcharge/over-discharge, short circuits, and overheating. With flame-retardant casing and stable LiFePO4 chemistry, they meet certifications. Dumfume Support Team responds 24/7 if you have safety concerns.
What voltage options do you offer?
From 12V to 48V modular system，Consult Dumfume 24/7 for compatibility verification.
About Dumfume
Small Size & High Energy: The 12V 300Ah Lithium Iron Phosphate 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.
Extra Long Cycle Life: Crafted With Premium Lithium Iron Phosphate Batteries, 12V 300ah lifepo4 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.This Innovative Battery Solution Highlights Its Durability And Reliability, Making It The Best Choice For Long-Term Use.
Safety: This 12V 300Ah lithium battery have Passed 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.
Crafted With High-Strength, Impact-Resistant ABS Casing, 12v rechargeable battery Excels In Heat, Weather, And Flame Resistance. It Ensures Stable And Lasting Power In Harsh Environments. Batteries Can Be Connected In Parallel And Series. Powerful Energy Extension System Meets Diverse Power Needs. Ideal For Home Energy Storage, Power Walls, Off-Grid Systems, Rvs, Campers, Industrial Backup Power, Solar Energy Storage Systems.
Note：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!
Customers say
Customers find this lithium battery to be well-built and powerful, with one noting it delivers high power for solar setups. The battery holds a charge well, with one customer reporting it can power a Garmin fish finder for 4-5 hours. They appreciate its functionality and consider it good value for money, with one mentioning it performs as well as expensive alternatives.
13 reviews for 12V 300Ah Lithium LiFePO4 Battery,200A BMS Max.3840W Load Power,Rechargeable Lithium Iron Phosphate Battery for Solar Energy Storage,Backup Power,RV,Camping,Off-Grid
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Mad Cooper –
Excellent Battery for Solar Energy
I purchased this Dumfume LiFePO4 battery pack and Iâm very impressed with the performance. The real capacity is outstanding and the energy delivery is stable. The runtime is excellent, especially for solar systems, since it stores enough energy to last through the night with no issues.Another great feature is the built-in BMS that protects against overcharge and deep discharge, giving me peace of mind. They also run very cool even under heavy loads, which shows their efficiency. With over 15,000 cycles, these are clearly built to last for many years.Overall, an excellent choice if you need reliability and high power for solar setups, backup power, or heavy-use projects.
Douglas Ryan –
Good, works as intended
Does exactly what it is supposed to do, holds a charge, delivers power, and recharges easily with the little small mobile charger. I also bought off of Amazon
Tinkersdad –
Working great.
These are great batteries. I donât understand why they came from 2 different locations CA,TX. one would not take a charge upon arrival. A few messages and pictures to customer service at the company, not Amazon and they sent a new one. It is working great. I have them for a 12v AC Unit for my semi truck. No more idling my engine.
LT Arnesen –
An excellent buy!
These batteries, after installation (in parallel) have performed flawlessly in our RV. They can easily power our unit for 10+ days without issue. Online reviews are great (check YouTube) and youâll be sold as well.
Brenda –
Great product.
Has worked great, used it for a beach camping trip to run lights and a box fan. We didnt run out of juice and still had some left after the trip. Planning to get a small camper and might try these out as you can have 4 total to hopefully run the fridge and fan while off the grid. I think most negative reviews come from miss use of this product, like one using it as a vehicle battery which is not the purpose of these lithium batteries, so far I’ve had no issues. And hope to try more of their products out soon.
lt1chevelle –
Good batteries
Seem to function correctly . Added them to my off-grid solar setup. Great price as well.
GIL L NEUMAN –
Poor experience
Poor experience!
Eddie703 –
Good product.
Good product.
Shay –
Pretty sweet battery. Trolled all day in my kayak and battery was at 89% when i got home. Thank you for making these lithium batteries so affordable, Small and lightweight. If you want a product tester feel free to reach out to me.
sheila –
Pretty decent battery
michel comeau –
Work really good I suggest this for an off grid power system
Jane –
This works great for solar panels. I’m very happy with my purchase !
Simplyred4x4 –
Working great, connected up to my current rv system, and everything works as it should. May get another one in the near future