12V 8Ah Lithium Battery,4000+Cycles 12V LiFePO4 Battery Built-in BMS,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
Tuesday, Mar 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.
- 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
Brand: Eiiev
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
UPC: 762849893402
Model: 12V Battery
Item Weight: 2.2 pounds
Item model number: 12V Battery
Batteries: 1 12V batteries required.
Manufacturer Part Number: 12V Battery
Date First Available: May 8, 2025
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Mar 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
Ordered two 12V 8AH batteries. I fully charged both batteries and used them in my daughters power wheels. Went to recharge both batteries and only one will charge. I have tried to contact the manufacture but I am unable to reach them due to the product being fulfilled by amazon. I am really disappointed in the quality of these batteries. I now have only one working battery and questioning how long this one will last. Would like a way to contact the manufacture on how to replace the defective battery.
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Reviewed in the United States on September 6, 2025 by Timothy Dunn
Style: 8Ah
Works great! Using it in the toy car for the kids
Reviewed in the United States on October 12, 2025 by Another Amazon User Another Amazon User
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: 7Ah
Handy to have for various project like setting up solar lighting, etc. Lightweight and compact so very versatile in its uses
Reviewed in the United States on November 6, 2025 by Keith
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
I installed the battery in a 12v kids ride on car. It works ok for first two months. Now it only works for half hour after I unplug it from charger. If I don’t keep it charging. The battery will drain in one day. I don’t really recommend it.
Reviewed in the United States on November 16, 2025 by Han
Style: 7Ah
I've never used lithium in my UPSs. So, honestly I'm a little nervous. I mean you always see incidences of lithium batteries bursting into flame. That would be bad enough when you're at home, perhaps even worse while you're away or asleep. So, I am testing sparingly. They seem to be of fine quality. They are light, but that is the nature of a different type of battery. They function as a battery. Easy to install as any battery would be. So, if they hold up I suppose they are a good value. Time will tell.
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Reviewed in the United States on November 24, 2025 by Customer #66
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 Melissa H