Best 12V Lithium Iron Phosphate Batteries of 2026

"I purchased this LiFePo4 battery for my UPS 550 and so far, it’s been fantastic! The UPS recognizes and charges the battery without any problems. I appreciate that it’s a cost-effective alternative to the OEM battery. While I can't confirm if it offers longer run times yet, it’s performing well."

"After using these batteries in my kids' ATV for six months, they worked perfectly. However, one battery stopped taking a charge. I reached out to the support team through chat, which was a bit tricky to find, but they were quick to respond and helped me right away!"

"I replaced my lead-acid batteries with these LiFePO4 ones and I’m thrilled! They last about an hour when fresh, compared to the old ones that barely lasted 20 minutes. My kids can now enjoy longer rides on their MX350 without interruption!"

"I bought two sets of these to fix my APC brand UPSs, and they work great! I’m getting long run times and no issues. Plus, the price is fantastic compared to factory batteries."

"I've had these batteries in my wife's handicap scooter for three days, and they're working perfectly. They’re a lot lighter than her old batteries and last three times longer on a single charge!"

"I replaced the lead-acid battery in my son's Power Wheels with this lithium-ion one. Unfortunately, this is the second battery I've tried, and while it charges overnight, it doesn't last longer than a few days, just like the lead-acid one."

"I think this battery works great with my 24v quad, providing a significantly longer riding time compared to lead-acid options. It's a better battery overall, and I highly recommend it. Just a side note: I used a 5A lithium LiFePO4 charger for faster charging, but a 2A charge would extend battery life."

"I’m hopeful this battery will last as long as my original one. It seems like a great deal for the price."

"I set up a battery-backed camera power supply with this battery and a solar panel. In my bench tests, everything worked perfectly—no complaints at all!"

"I was initially hesitant about switching to lithium iron phosphate (LiFePO4), but I’ve been pleasantly surprised by this battery! It's super lightweight, charges quickly, and the quality terminals make it a great value."

"I got this battery for my UPS since I needed replacements. It offers a great value for the money, charges quickly, and my UPS works perfectly with it. I’m very happy with this product!"

"I bought this 12v 7ah battery for my backyard solar power setup. It works great, charges quickly, and is incredibly lightweight. I really like how versatile it is!"

"I find this battery to be very well-made. The tough plastic housing can handle some bumps without cracking, and I love the real machine screw terminals. The multimeter showed a 13.8 volt charge right out of the box, and it consistently powered my LED lamps during testing. With its storage capacity comparable to portable power stations, it’s a great value for the price!"

"This battery has solid terminals that make attaching devices easy. I tested it with my 12v 55 quart chest freezer, and it powered it overnight and into the next day, indicating that the 20Ah rating is likely accurate. I also appreciate the water-resistant case; I feel safe using it outdoors without worrying about rain."

"Upon receiving my GOLDENMATE battery, I was impressed by the sturdy design. After charging it, I used it to power my air compressor, and it performed flawlessly. I noticed it maintained a voltage of 13.72 volts after sitting for three days. During my tests, it ran for over two hours with a load, exceeding my expectations!"

"I replaced the battery in my Yamaha RDS250 Sea Scooter with this one. After cannibalizing the old battery's connector, it fit perfectly and works great! The battery size is identical to the OEM AGM, and I love that it doesn't vent gas like standard batteries. Plus, it's only a third of the cost of the OEM battery, has 33% more capacity, and could last ten times longer!"

"I found this battery to be shockingly lightweight yet extremely powerful! It's perfect for my solar setup in my camper, allowing me to go off-grid for extended periods. Great value for the performance it provides!"

"After making a few adjustments, I managed to fit this battery into my Playmate Volley Tennis Ball Machine. It's half the weight of the original SLA and lasts much longer. I also got a LiFePO4 charger, which made this upgrade under $100. It's definitely worth it!"

"A few weeks in, and 5 stars isn't enough! These batteries perform exceptionally well compared to the SLA batteries I had before. My range has increased significantly, and they are incredibly light. I'm able to travel over 5 miles on a single charge. I had to make some modifications to my chair to fit these batteries, but it was worth it. I've only charged them a few times now, and I plan to build a second backup for extended range."

"Updating my review to 5 stars! Initially, I thought the batteries were faulty, but it turned out to be a blown fuse in the battery compartment. After replacing the F30A250V fuse, all four batteries charged up fine individually and worked perfectly. I appreciate the quick response from the company regarding the refund offer, but I wanted to test them individually first. I'm glad I did!"

"This battery works just as well as the original, and it's been connected for a few weeks with no issues. My alarm system detects it without any battery errors, which is a relief. However, I did encounter some difficulty connecting it due to the wider connectors. I managed to build my own connector, but I can see this being a potential issue for others. Still, the battery itself is functioning perfectly."

"I installed this 12v 100Ah battery recently and it's working great. I previously used a 75Ah Mighty Max which lasted over 4 years. This one fits well in the Wayne battery box and has a convenient webbing handle that's always accessible. Sure, it's heavy, but that's expected from a lead-acid battery."

"The battery arrived well packaged, which was necessary given its weight. I connected it to an inverter for my 1/2 hp sump pump during power outages and tested it for twelve hours. To my surprise, after running the pump intermittently, the battery was still at 80% charge. Overall, it seems like a decent product."

"I had a great experience with the customer service from Weize. After using the batteries for about a year, I noticed they weren't holding a 100% charge anymore. I reached out for help, and their response was prompt and professional. They offered me a replacement or a refund, and I chose a replacement because I really like their batteries. I'm looking forward to using them again!"

"I experienced the dreaded red flashing beep on my APC UPS, signaling it was time for a new battery! After considering my options, I decided to go with a lithium battery, and I couldn't be happier! It's significantly lighter than a standard lead-acid battery and seems to hold a charge longer too! I'll be replacing my other UPS batteries with lithium in the future!"

"After testing this battery under load, I found it to be exactly as advertised. My tests showed it has a little over 6Ah, and it doesn't heat up at all. It's truly a great product!"

"I recently swapped out the lead-acid battery in my ION Explorer Bluetooth player for this one. It fits perfectly and is half the weight. I can't say how it will hold up over time, but I'm hopeful it will outlast the lead-acid battery!"

"I bought this battery for use in developing countries in Africa, where power is intermittent. It's very portable and has different recharge options. It's worth the cost, and I hope it lasts for years. A great product overall!"

"I was impressed with the battery life at this price point. It fits nicely in my Husky rolling tool box and has plenty of space for accessories. This 100Ah battery is significantly cheaper than the Jackery 300W but offers 4x the capacity. Minor improvements could be made, but overall, this is a fantastic value!"

"I used this battery for my trolling motor on a canoe but faced issues with it losing power. After a few uses, it wouldn't hold a charge. I was disappointed, but customer service was responsive and sent me a replacement battery quickly. I'm hopeful about this new battery!"