Dumfume 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

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.

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.

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.

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.

I've been using these with my solar grid for 4 months now and they are working according to expectation. I really hope they last as long as they claim. I will update this review if my opinion changes

This battery appears to be of good quality with a substantial capacity. However, I’ve encountered a minor issue with its low temperature cutoff. I was using the battery when the temperature dropped to the upper 30s Fahrenheit. Surprisingly, it stopped charging at around 38 degrees Fahrenheit, which was unexpected. While I appreciate the low temperature cutoff for protection, 38 degrees seems a bit high. I reached out to the manufacturer to inquire about adjusting the setting, but they informed me that it wasn’t possible. This is not a dealbreaker since I reside in Seattle, where temperatures rarely drop below 30 degrees Fahrenheit. Additionally, I need to use the battery more extensively to make a more comprehensive assessment of its quality. Once I do, I’ll update the review to either five stars or three stars based on my final experience.

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.

I bought two 12V 100Ah batteries. One works, the other one won’t charge at all. Same charger, same wiring, so it’s clearly a defective product, not my setup. It stay at below 12v and it mean it can’t charge!! Very very bad customer service!!! Try to exchange the bad one.. it took me more than 5 day until now still can’t do it!! On top of that, the item is non-returnable, and customer service just give a very difficult time. didn’t solve anything. In the end I basically paid for a dead brick. I won’t buy this brand again and don’t recommend it to anyone. It is a very easy problem and they make it so communicate!! Just an exchange took me like 5 plus days!!

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

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