12V 8Ah Lithium Battery,4000+Cycles 12V LiFePO4 Battery Built-in BMS 5A,Deep Cycle Lithium Iron Phosphate Rechargeable Batteries for Small UPS,Power Wheels,Fish Finder,Ride-on Toy,Camping
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Availability:
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Arrives
Friday, Jul 24
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Style: 8Ah
Features
- Longer Lifetime, Lower Costs Eiiev 12V 8Ah LiFePO4 batteries have a lifespan of over 4,000 cycles, which is much longer than the 300500 cycles of lead-acid batteries. Unlike SLA batteries, which can only discharge by 4060%, our lithium batteries can discharge by 100%, which extends the time between replacements. While LiFePO4 batteries may have a slightly higher initial cost than lead-acid alternatives, their extended lifespan and superior cycle performance lead to a lower cost of ownership.
- High Safety, Built-in BMS Protection12 volt fish finder battery feature a built-in BMS with six safeguards: protection against high temperatures, overcharging, overdischarging, overcurrent, short circuits and automatic balancing. Coupled with salt fog and dust resistance capabilities, they are durable in various conditions. Furthermore, as they are free from heavy and rare metals, our LiFePO4 batteries are Earth-friendly.
- Flexible ExpansionOur lithium batteries support wiring in series to create a 24V/36V/48V 8Ah battery bank system. Additionally, they can be wired in parallel to build a 12V 16Ah/24Ah/32Ah system. Furthermore, you can connect up to 16 batteries in both series and parallel to construct a robust battery bank system with a total capacity of 1638Wh. Kindly note that ensure all batteries are fully charged individually before connecting in series.Battery BMS is 5A so single battery maximum withstandable power is 73w.
- Lightweigh,Compact & Portable This 12V 8Ah backup power source measures 5.9 x 2.6 x 3.7 inches and weighs only 2.2 pounds, making it much lighter and easier to carry and install than batteries of equal size and capacity.This makes it very popular in portable devices and outdoor power supply.
- Wide ApplicationsSmall 12V lithium battery is the perfect replacement for your less durable Lead Acid batteries. It is suitable for a variety of applications, including fish finders, Kayak,power wheels,camping, backup power,UPS power systems, solar gate openers, emergency lighting (LED strip etc), home security systems, ride-on toys, and more (Not a starter battery).
- Easy to recharge and maintain The new 12v rechargeable battery adapt a 14.6V 4A or 6A charger with pulse function to charge the battery. (Auto charger,standard lead-acid chargers, non-pulse lithium chargers, or automotive chargers is not supported)
- After-Sales ServiceEiiev provide professional technical support and online customer service with fast response within 24 hours. Eiiev support team is always here for you.
- NOTE: DO NOT connect batteries of different brands or types in series or parallel. (Mixing batteries from different brands may cause fire.)
Brand: Eiiev
Vehicle Service Type: children's toy cars, fish detectors, alarm system, emergency response system, emergency lighting
Voltage: 12.8 Volts
Battery Cell Composition: Lithium Ion
Item Weight: 2.2 Pounds
Product Dimensions: 2.58"D x 5.96"W x 3.92"H
Terminal: F2 Terminal
Battery Capacity: 8 Amp Hours
Automotive Fit Type: Universal Fit
Manufacturer: Eiiev
Compatible with Vehicle Type: children's toy cars, fish detectors, alarm system, emergency response system, emergency lighting
Voltage: 12.8 Volts
Terminal: F2 Terminal
Item Weight: 2.2 Pounds
Item Dimensions D x W x H: 2.58"D x 5.96"W x 3.92"H
Battery Type: Lithium Ion
Brand Name: Eiiev
Manufacturer Part Number: 12V Battery
Manufacturer: Eiiev
UPC: 762849893402
Included Components: Battery
Unit Count: 1.0 Count
Manufacturer Warranty Description: 3 months
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Jul 24
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
Style: 8Ah
I use this battery to power my game camera. It last so much longer than the double-a’s that it normally takes. Don’t miss that shot of the big deer that may walk by if your batteries are dead. Use this instead.
Reviewed in the United States on March 29, 2026 by Robert Neighbors
Style: 8Ah
This is NOT a good battery. I have used it 5 or 6 times now, and the voltage will drop unexpectedly at random times below 9 volts. I haven't put a meter on it when it drops, but my ham radio transceiver shows a low voltage, and a light comes on when voltage drops below 9 volts, and the signal sent from the transceiver is distorted. A minute or 2 later voltage is ok again, then it does the same thing again randomly. This is after having the battery fully charged and only using it under load for a short period of time. I have owned other brands of these type batteries that have lasted hundreds of charging cycles with no problems, but this one is not good at all. Don't waste your money on it!
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Reviewed in the United States on August 30, 2025 by Sue K.
Style: 8Ah
The quality of the batter is good, small in size like for a kid car that takes a 12v. Heavy in weight but very easy to install. Charges completely, very quickly. Would recommend
Reviewed in the United States on April 1, 2026 by Rasheeda
Style: 8Ah
Easy installation and lasts quite a long time while listening to music. And it was a good price.
Reviewed in the United States on April 6, 2026 by Christi L.
Style: 8Ah
What I like about this is its steady output and long-lasting power. It's very light compared to standard batteries I've used before. If it's true that this can by cycled thousands of times, then I expect many years of good use. I ran it with a couple string lights for several hours but apparently it didn't use much of its capacity since it recharged in less than an hour. Also, for the price it's a good value. There isn't much of a user's manual....it's more about warning of these kind of lithium batteries. I'm keeping it in the shed when not in use. I wish it came with it came with some kind of charging adapter.
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Reviewed in the United States on June 26, 2025 by GeorgeNY
Style: 8Ah
I tried this in my APC Back-UPS ES 725 (model BE725BB) but it failed the power-on test. I suspect that most of these lithium batteries will be the same so be sure to watch some of the many videos on YouTube explaining the use of these as replacements for SLA batteries in a UPS. There are other brands of these batteries on Amazon that have been proven to work with APC units (ask Rufus) although none specifically with my model that I can find. I will stick with a SLA battery for now and maybe by the time it dies, the lithium UPS story will have improved.
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Reviewed in the United States on November 6, 2025 by normalnorm
Style: 8Ah
Great battery for my deer 🦌 feeders. The old acid batteries 🪫 only lasted one year in our hot 🥵 Texas summer.
Reviewed in the United States on April 3, 2026 by gptex
Style: 8Ah
Bummer, only measured 6.5Ah and not 8Ah. I set the cut-off at 11.5V and only hit 6.25Ah. Once I hit the limit, I let the battery rest and ran a bit longer. Got another 0.25Ah. $19 was a great value but not full value. I'm trying a 10Ah battery from another vendor. Will see if that's any better. ** Update ** I purchased a 10Ah from another vendor at Amazon. I got 11Ah (1Ah more) from my test. I retested this and confirmed 6.5Ah. :( Now that I know something is off with this battery, I have moved to 1 star.
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Reviewed in the United States on November 4, 2025 by Melissa H