12V 7Ah (7.2Ah) Lithium LiFePO4 Battery 2 Pack, 2000+ Cycles Lithium Iron Phosphate Rechargeable Battery for Small Solar, Camping, Lighting, Ride on Toys, Fish Finder and More, Built-in 8A BMS
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Availability:
In Stock.
Arrives
Wednesday, Mar 11
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Size: 12V 7Ah-2PACK
Features
- Superior Performance: Lithium iron phosphate battery has high energy density, Long cycle life, Good safety performance, No memory effect, etc. NERMAK LiFePO4 battery has built-in BMS protection to prevent overcharge, Over-discharge, Over-current and short circuit, and very low self-discharge rate. (Not motorcycle starter battery)
- Long Cycle Times: Lithium batteries 2000 + cycles no problem while the traditional lead-acid batteries only 300-500 cycles, More safety and environmentally friendly than lead-acid batteries.
- Widely Uses: Widely uses in most areas such as: Emergency Lighting (LED strip etc), 12V router, RV/outdoor camping, kids ride on toy car, Fish finder, Ham Radio, Home Alarm, Cellular remote camera,Powering Game Cameras, Fire Security Systems and more...
- Expansion and RechargeCan be connected in series or parallel, in series, Up to 4 identical batteries can be connected,Quick charge by 4A , and heavy-duty output discharge up to 8A continuous and 2C Pulse.
- Warm Note: 1* 12 Volt 7.2Ah Replacement lithium ion battery,12 months warranty, If you have any question for our product, Contact us: click the "Ask a question" on our storefront or in "YOUR ORDER" options click the "contact seller" (please use LiFePo4 special charger, with fully automatic SLA charger may not be fully charged)
Brand: NERMAK
Vehicle Service Type: Fish finder,12V router,Lighting
Size: 12V 7Ah-2PACK
Voltage: 12.8 Volts
Battery Cell Composition: Lithium Ion
Item Weight: 2.1 Pounds
Product Dimensions: 5.94"D x 2.56"W x 3.91"H
Terminal: F2 Terminal
Manufacturer: NERMAK
Product Dimensions: 5.94 x 2.56 x 3.91 inches
Item Weight: 2.1 pounds
Item model number: 12V7A
Batteries: 1 12V batteries required. (included)
Date First Available: August 12, 2022
Manufacturer: NERMAK
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Mar 11
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 12V 12Ah-2PACK
Okay, I lied. Here we are a year later, and the batteries are still kicking hard. However, I cracked the frame on the chair, and had to get a "new to me" chair. My family and I recently became homeless, and the chair took an absolute beating trying to move furniture, and trying to handle a young Husky with a propensity to run off... through the woods... The batteries never missed a beat. So, when I was able to get the new chair, since it was donated, they warned me the batteries might not last very long. Unfortunately, this was more the case than I had hoped. My Ex stepped up, and provided the funds to get new ones, so I came back to NERMAK. Here's where things got weird. I purchased 2) 36AH batteries and my payment was declined, order cancelled... 3 times... Then I tried switching to another account. No joy. Something weird was going on with Telecheck. In desperation, I reached out to Customer service and the company directly. A few messages, clarifying some things, and they fixed the problem, and I got my batteries. I am officially a customer for life. If these hold up anywhere near as good as the others, they will probably outlast me. ** Final Update** Maybe... The last couple days have been intense, and even though I beat the absolute snot out of these batteries, they never missed a beat. Yesterday saw 8 miles around the neighborhood, and only one lost bar. **remember though, it isn't completely accurate** Rescued some ducklings, went to the store a few times, etc... Today however, I hooked up my old bike trailer to the chair and went full grocery shopping. Now even though this was 10 miles round trip, I'm hauling a trailer with a few steep grades along the way. Got to the store, I'd lost a bar, I expected it, so I plugged it in while I shopped using the handy "mart cart" Full load minus trailer was close to 80 pounds (36Kg) With the trailer, and me on board, it was about 260 lbs (118Kg) The full capacity of the chair with 18AH batteries is 300 lbs (140Kg) Remember, these are 12AH. That short 1 hour charge got me all the way to the gas station near my house, where I had to stop anyway. I put it on charge for 5 minutes, and hobbled in to get what I needed and made it home no issues. NEVER, even with my old chair, that had 35AH batteries compares to these. I'm not saying they'll last longer, but they are significantly lighter, and apparently far more power dense. I want to see what a 100AH ones on my trailer will do. Add a solar panel, Unlimited range...lol. Oh, Yeah, that's a cooler on the back, too. 7 months in... My old batteries would need replacing by now. These just took me on a 5 mile round trip over on a rough shoulder with a steep hill. Even though these are lower capacity compared to the old lead acid, they more than make up for it in weight savings. Essentially making it easier for the batteries to move the chair. I have a set of smaller ones in my cart for a RC lawnmower project I'm working on. Compared to the old batteries, I wish I could give these 10 stars. **original Review** A few weeks in, and 5 stars isn't enough. Everything I say below, and more. I've only charged these things a few times now, whereas with the SLA, I'd have to worry about topping off, or doing a maintenance cycle, which only seemed to kill them faster. These just perform. My range has increased significantly, but I don't have actual measurements. I reflexively look at my battery gauge, but I'm always surprised that I still have charge. I think the primary reason for the range increase is weight. These things feel like air compared to my old batteries. please read my original review below*** ***I bought these to replace the batteries in my Pride G0-Chair. I've been through 3 sets of the "Recommended SLA" batteries from the manufacturer, in three years. I don't use my chair every day, but when I do, I'm usually pretty hard on it. That said, the last set, which I bought from Interstate battery directly, only lasted mere 8 months. I was down to about .3 of a mile before charging, when the specifications list 8+ miles per charge. Though these come out to only 2/3 the original capacity, (12Ah vs. 18Ah) I was able to travel over 5 miles over 4 days on a single charge. I wanted to test the built in BMS's, and I also decided to order a charger specific to 24V, so I didn't charge it. The BMS safety kicked in and shut down my chair at my neighbors house. THIS IS NOT A NEGATIIVE!!!!! Regular SLA or AGM will let you discharge them to death.... literally. The protection worked as hoped, and as a bonus, I confirmed that the battery gauge is "close enough" to read these. If it starts blinking red on the controller, get to an outlet, or get home quick. The BMS doesn't play. I will say, they hold the green far longer, and once your into the yellow, they do fall off faster than I expected, but that is the nature of Lithium vs. lead acid. These do not fit my battery box , but I knew that going in. However, I am going to modify the box, and given the space, I will be able to install the charger on board. Which brings me to my final point. These things are LIGHT. I mean feather weight in comparison to the SLA/AGM batteries they replaced. Even if they matched in size and capacity, I can't imagine them weighing much more. They are literally about 1/4 the weight. The entire battery box weighs less now, than just one of the old batteries by itself. ****NOTE**** I had to change the terminal connections and am making modifications to my chair to accommodate these batteries, and have a good understanding of electronics, and electrical and charging systems. I used to build defibrillator's for the medical industry. Do this at your own risk!!! Even though it says you can use an SLA charger, I recommend a 29.2 volt charger specifically for LifePo4 batteries, if you are on a 24v system like I am. Last word: These are light, powerful, and charge relatively quickly at the recommended 5 Amps. Because they are so light, I plan to build a second "backup" for extended range. Even 4 of these only weigh as much as one of my old batteries. If anything changes, I will update. **Update** Okay, still 5 stars. Wish I could give 6. On my second charge cycle, and even more impressed. I don't know about longevity yet, but given my initial experience, and if they last even close to the specified number of charge cycles, these batteries will actually outlive me.
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Reviewed in the United States on October 28, 2024 by R J Rock R J Rock
Size: 12V 7Ah-2PACK
Battery fitment was good, hold charge for a good while, good value
Reviewed in the United States on February 5, 2026 by John Gigliotti
Size: 12V 7Ah
I purchased this battery to replace the worn-out SLA battery in the small UPS (uninterruptable power supply) I use to back up my desktop PC. The decision to switch from SLA to Lithium-iron-phosphate battery chemistry was easy as LiFePO4 batteries cost about the same as SLA batteries but are much lighter and last much longer than SLA batteries. My UPS is over ten years old and, at the time I purchased it, SLA batteries were considered the battery of choice. If purchased today, it’s highly likely the battery would be LiFePO4 technology. LiFePO4 batteries are easily confused with Li-ion batteries commonly used with portable power tools. LiFePO4 batteries are more reliable, have longer lifespans, and are safer than Li-ion batteries. The battery easily fits into the same space as the SLA battery it replaced. I haven’t needed to find out if the battery works as well in a power out scenario, however, my UPS runs a test program several times a week so I’m certain I can rely on it should the need arise.
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Reviewed in the United States on April 2, 2025 by James E. Stevens
Size: 12V 7Ah
FYI, batteries do not have a date stamped anywhere. I purchased two and one of them failed the first week of use.
Reviewed in the United States on February 6, 2026 by Alejandro Romero
Size: 12V 7Ah-2PACK
This battery is good for some things, but not all things that are shown. A single battery is rated at about 100W constant output and about 255w for 5 seconds. The correct use for this battery is as a short term UPS backup on smaller items like LED lighting, laptops, Wifi routers and cell phone chargers. Incorrect use would include, motors (tools, ride on toys, golf carts. starter motors) medium to large solar storage...any other high current uses (>100W per battery) This battery is designed for a slow and steady output unlike a car battery that is designed for high output for short amount of time. DC motors have a high starting current, over 15 times the run current. Think about all the start/stops on a tool or toy ride on. All that being said, under correct usage (>=1C) the batteries performs much better than lead-acid with a 24v UPS load of 175W AC for 48 minutes vs about 35 minutes before low voltage cutoff. It will be some time before I can comment on the longevity of these batteries.
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Reviewed in the United States on October 10, 2022 by Thomas Bonk
Size: 12V 12Ah-2PACK
Batteries last a lot longer than acid batteries. I'm glad I purchased these.
Reviewed in the United States on February 9, 2026 by R. Boik
Size: 12V 12Ah
Works perfect with the granddaughter's Barbie Dream Camper Powerwheels. Picked up the camper ("not working") for free, bought this battery as well as a wiring adapter/plug for Powerwheels, and poof! I'm Best Grandfather Ever. Now I have to figure out a way to slow it down, because this battery puts that camper in "turbo".
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Reviewed in the United States on November 26, 2025 by C. Pilot C. Pilot
Size: 12V 7Ah-2PACK
I installed these into an APC XS1300 to replace the SLA batteries that had failed. The UPS recognizes them and works flawlessly. I'll see how long they last and update if they don't hold up. Outside of longevity, they are much lighter then the SLA batteries and keep the devices plugged into the UPS online longer, as well (using the same load/devices as the SLA batteries).
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Reviewed in the United States on September 11, 2025 by Got A Guy, LLC