Best Lithium 12V Batteries of 2025

“I found the installation very simple when replacing my old sealed lead acid battery. I’ve been using LiFePo4 batteries in my RC aircraft for over 20 years, and I was excited to replace the typical unreliable lead acid battery in my generator. I did a quick test start, and it worked perfectly. I hope it lasts for several years because I only use this generator during hurricane emergencies.”

“I’ve had the MX350 for over a year, and I’ve gone through both the stock battery and one other replacement. The stock battery lasted about 8 months, and the first replacement only lasted 3 months. I switched to these LiFePO4 Lithium batteries, and they are amazing! They last about an hour when fresh, giving the kids plenty of time to enjoy at the park.”

“I bought this LiFePo4 battery for POTA activations. It’s very lightweight and can run for several hours while drawing ~20A and putting out 100W. It charges in about 3 hours. So far, I’m pleased with its performance. I only wish the terminals were slightly larger for easier connection.”

"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 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 haven't had this battery long, but after about five charges, I can see a significant difference compared to lead-acid batteries. This is my 50 lb thrust trolling motor battery, and I'm really satisfied. It's priced around $250, which is reasonable given its 10-year warranty. Even if it lasts just five years, that's still comparable to a couple of lead-acid batteries. I no longer worry about running out of power while fishing, and it charges quickly, often fully recharging overnight. I will update my review as I continue to use it."

"I purchased this battery to replace my 50Ah AGM deep cycle for my small inflatable boat with a 20HP outboard. Initially, I was impressed by its lightness and appearance. However, after using it for a few months, I faced a disconnect issue about 50% of the time when starting the engine, which forced me to use the pull starter. After some troubleshooting, I realized I had bought the wrong type of battery for my needs. The customer service team was very helpful, and they accepted my return even though the battery might have been fine."

"I've been using this battery for a couple of years to power groundwater sampling pumps in the field. I often drain it down to 20%, and I utilize the Weize LiFePO4 specific charger for recharging. The onboard power manager effectively protects the battery from getting too low, and overall, I would highly recommend this battery based on my experience."

"I bought this battery for my kids' Dune Racer and it's been great! It charges faster and lasts longer than the original. My kids often get tired of the car before the battery runs out. Plus, it's much lighter, making installation a breeze!"

"I recently picked up six 12.8V-18Ah batteries for our Razor MX650 bikes. They work perfectly and provide excellent usage. The charge lasts a long time, and they recharge quickly. I'm definitely going to buy more from XZNY!"

"I replaced the old battery in my grandson's dump truck with this lithium iron phosphate battery. It was a simple plug-and-play swap. It lasts much longer without losing power and charges with the onboard charger. The capacity is more than twice that of the original battery!"

"I can run my trolling motor for days on this battery and it barely drops to half. It's mounted on my 12' Nucanoe kayak, and I'm really impressed with how much I use it. It's super light compared to other options and doesn't take up much space."

"For my small solar setup, this battery has been running smoothly for over a month. It's incredibly lightweight and has been performing exactly as I expected."

"I purchased this battery for my duck boat, and it has exceeded my expectations! It maintains a good charge, even in the cold marsh conditions. I'm really happy with its performance!"

"I had spent nearly two years searching for a drop-in solution for my RV. I needed a single 12v lithium battery around 300ah to fit under the stairwell where my lead-acid batteries were. I was thrilled to find this battery, which not only lasts over 48 hours but also powers my microwave and space heaters simultaneously. The cost was about half of $1,000, and they even matched a competitor's sale price. This 280ah battery showed up quickly, fit perfectly, and I couldn’t be happier!"

"I was initially hesitant to buy a low-cost battery for my camper, but I’m so glad I did. This $450 lithium battery performed far better than my previous two lead batteries, which would drop to 30-40% by morning. With this battery, I only saw it drop to 90%. It’s been awesome!"

"After testing my 4 280ah batteries with a multimeter, I connected them to a 5000 watt inverter. I started with a 400 watt heater and added devices up to 5000 watts without voltage dropping below 13.45 vdc. The performance under heavy load is fantastic. I highly recommend these batteries for anyone needing backup power or looking to build a DIY solar system."

"I'm thrilled with the ECO-WORTHY 12V 100AH LiFePO4 battery. It powers my irrigation system effectively, outperforming my previous AGM battery. The excellent customer support from ECO-WORTHY made my experience even better, as they promptly addressed my concerns about a terminal issue. I appreciate the lightweight design and the fact that I can use more of its capacity without worrying about damaging it."

"When I replaced my sealed lead acid battery with this lithium ion option, I noticed significant performance improvements. Unlike the lead acid, which limits discharge to 50 amps, this battery allows me to use the full 100 amps. Though I didn't switch to a dedicated lithium ion charger, it still keeps my inverter running smoothly for two days, which is a huge win for my camping trips."

"After two years of flawless service from my 100ah Lifepo4 battery, it stopped holding a charge. I contacted customer service, and they quickly sent a replacement battery. Although I was disappointed that the first one didn't last longer, their rapid response and support reassured me of their commitment to quality."

"I decided to upgrade to the OKMO 12V 15Ah LiFePO4 battery for my portable refrigerator, and the performance has been absolutely incredible! It’s so lightweight, yet it keeps my fridge running for two full days. The shipping was quick, and it came with clear instructions that made setup easy. The Battery Management System gives me peace of mind, ensuring safety and efficiency. Overall, for the price, this battery is an outstanding deal!"

"Upgrading to the OKMO 12V 15Ah LiFePO4 battery for my kayak has been a game-changer! It powers my fish finder for 5-6 hours, and its lightweight design makes moving around much easier. The charging time is quick, usually around 2-3 hours. I’ve found it to be reliable and a great fit in my kayak. Although it’s pricier than lead-acid options, the performance justifies the cost for me!"

"I’m thoroughly impressed with the OKMO 12V 15Ah LiFePO4 Lithium Battery! It’s incredibly light, making it easy to handle and fit into my UPS system. The performance is fantastic, with 4000+ deep cycles and a 10-year lifespan. The built-in Battery Management System provides essential protections, giving me confidence in its reliability. Just a heads-up, LiFePO4 batteries differ from lead-acid ones, but once you understand them, they’re worth it!"

"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!"