12V 100Ah Mini LiFePO4 Lithium Battery, 100A BMS,1280Wh, 6000+ Cycles BCI Group 24 Lithium Iron Phosphate Battery Perfect for RV, Solar, Off-Grid and Home Energy Storage

I used this 2 pack to upgrade my 5+kw system to around 8kw which is about a 50% increase. I used 2/0 cables to connect the 2 batteries in series for a 24w 300ah battery bank. So far it has worked mostly flawlessly although I do notice an occasional slight flicker of my led lights in the shed that wasn't there before. It may be that there's some inconsistency between the battery bms and the 4000w inverter. All other devices - PC's, monitors, printers, lights, heater, refrigerator, etc., have had no problems. I've only had these for a week so if something goes wrong I'm gonna change my rating. But so far I'm happy. Update: 01/14/26: I've had zero problems with these over the Winter. They charge just fine and discharge flawlessly.

I like how the 2 bolts and 2 washers do not separate which makes it very easy to change out. Very light weight for me. With the handles you can easily pick this up with one hand. I used this battery for about 10 full cycles and it charges to 14.4 or 14.5. Warning!!! before using LifePO4 batteries, know how they differ from Lead Acid Batteries. You can kill LifePO4 battery by discharging it and leaving it in the cold. Also, need to understand the BMS. For example, the BMS will shut off the battery after discount for 30 minutes before allowing you to charge it. I later bought the Dumfume 12v 300ah and just started using it.

These batteries have NO Bluetooth or temperature protections - but these "missing" features are made up in low cost. I have add on devices for protections. There are FOUR in PARALLEL in my bank of 12.8vdc @ 400 Amp Hours. I use a generic Amazon, robust 60 Amp Solar charger fed by 700 Watts of Renege N-type Solar Panels (3 200 W N-type + 100 W N-type) I live in the deep woods of the rainy Pacific Northwest in a clearing. My N-type panels provide adequate charging 80% of the time (supplemented with a gas gen feeding a VICTRON 30 amp 120vac charger. I've accidentally run the batteries to near zero and recharged them with NO adverse effects. Now a Renege Smart Shunt with remote panel has stopped over charging and discharging. The batteries live under my bed with a heat vent in Winter and A/C hose in Summer. VERY reliable and cost effective.

Have used them for a while, they are doing good, one of the BMS shut down for an overcharge I suspect using a solar controller, just disconnected & reconnected and the BMS kicked back in. Using 4 batteries in series for 48v service, saved wire size.

Arrived "DEAD". Zero volts and none of my lithium battery chargers would wake it up or even attempt to charge it.

So far I’ve been very pleased with these 12 V Ah batteries. I bought two that I connect together for 24 V inverter. They provide enough power to keep my house, gas furnace, running for over 4 hours during power outages. Make sure you have the proper.LIFePO4 battery charger or solar panels that work through Power converter. Never use a regular 12 V car battery charger. Also never charge these batteries below 32°F or permanent damage will occur.

Go to Dumfume.cn and read the warranty on the Dumfume web site. I thought I was buying from Dumfume and would be able to qualify for the 5 yr warranty by registering my battery, only to find out that they consider the Amazon Dumfume store where I purchased it to be third party and not warrantied by Dumfume. However the 600ah lifepo4 battery arrived fast and in as new shape, it came about 60 percent charged and took my charger about 20 hours to balance. It is at full capacity now and working well. I did get a fast response from the company after emailing them asking about the warranty, so perhaps if I had not assumed that I was buying direct I would have a 5 yr warranty.

Great battery

Hält das was sie verspricht volle 100ah hat mir auf dem letzten Festival sehr viel ärger erspart

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