38.4V(36V) 100Ah LiFePO4 Lithium Golf Cart Battery,Built-in 200A BMS & 15000 Cycles,5kW Motor Support,High Energy Density,Maintenance-Free for Golf Carts/Utility Vehicles/RV Backup Power

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.

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.

Hello,I have to say I am impressed with this 300AH battery. I wanted something that I could use in my camper to power the 2500 watt inverter to run the AC and microwave when not hooked up to shore power and so far this has worked awesome. I have two 190 watt solar panels hooked up to them to keep them charged and so far I have not had any issues with them staying charged. The size is a little bit bigger than what I was hoping for but it fits. easy to install, very durable, weight is on the heavier side and speed for them to recharge is quick. if you don't have the space for this size battery the i suggest using three 100ah batteries instead.

Great price, great performance, and amazing supportWe 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.

Excellent, solor saturation 80 to 93 during day. Fit perfectly ( Mini), Light also . So far would buy again,

High quality and well built. Works great for my trolling motor setup.

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.

These batteries are a good price for the build quality. I ordered 12 of the 300ah batteries. I had a problem with one of the batteries and contacted the seller. The seller responded by the next day and was able to help me. Great customer service! I would/probably will purchase more of these again.