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(2Pack-8Ah)
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Availability:
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Arrives
Monday, Jul 20
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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)
- NoteThis 12 volt lithium battery is suitable for energy storage rather than start-up battery. !DO NOT connect batteries of different brands or types in series or parallel. (Mixing batteries from different brands may cause fire.)
- TipAfter you receive the package, please use a battery measurement instrument to check the battery voltage and analyze the battery issues through the battery voltage. 1) If the battery voltage is below 12V, it indicates that the battery has been protected by the BMS system and needs to be activated with a 14.6V charger. Wait for a long time and then measure the battery voltage again.
Brand: Eiiev
Vehicle Service Type: children's toy cars, fish detectors, alarm system, emergency response system, emergency lighting
Voltage: 12 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
Unit Count: 1.0 Count
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 Volts
Terminal: F2 Terminal
Automotive Fit Type: Universal Fit
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: 20260114-100Ah
Model Number: 20260114-100Ah
Manufacturer: Eiiev
UPC: 799849424626
Manufacturer Warranty Description: 3 moths
Included Components: 12.8V 8Ah Lithium LiFePO4 Battery
Unit Count: 1.0 Count
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Jul 20
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
I purchased this battery for a mobile power system that I built into the bed of my truck. I have a couple of solar panels mounted on top of the truck bed cover, and this battery replaces the old junk led acid batteries I did have installed. Although LiFePO4 has a different charging voltage profile it provides a much better charge/discharge performance. So far, It has performed well having worked just as intended. It provides reliable power for the tools, lighting, and other electronic devices I use in my maintenance and service work reducing some of the hassles of m mobile work setup. Based on what I've seen so far I am happy with this and would recommend it to anyone looking for a LiFePO4 battery.
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Reviewed in the United States on June 8, 2026 by Bert
Style: 2Pack-8Ah
I ordered these to replace batteries in a cost costway Mercedes kids 12v ride on. They are super light weight compared to the old lead acid batteries. They produce a ton of on demand power and seem to last. PLEASE NOTE YOU NEED A NEW CHARGER !! In typical fashion They dont tell you the details. You need a 14.6 volt 4amp / 6 amp charger with pulse. Not expensive but you need one to charge these batteries. Your stock charger will not work.
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Reviewed in the United States on May 22, 2026 by Brandon Schwach
Received battery impressive weight put the correct charger on it before using it. And it charged for 1 hour . Put in my boat to a 40lb thrust trolling motor ran it on and off for about an hour . Very powerfull .used it again the next week for about an hour and a half worked fine .took it home put it on charge and charger said fully charge so I put the trolling motor to it and no power ! Waiting on replacement ! And can't go fishing. So what's up with that ?
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Reviewed in the United States on April 29, 2026 by vickie jackson
I use this to power my 24v trolling motor. It has worked great for that purpose. They weigh a lot less than a standard deep cycle lead battery. They last longer than a standard battery. They are about the same size so I didn’t have to change my mounts. The construction looks very sturdy and sealed. Overall if I need another battery I will buy one of these.
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Reviewed in the United States on June 7, 2026 by Phillipe
I bought this 12V 100Ah LiFePO4 battery for my RV. I’m really happy with its light weight and power output. I ran this for several hours in my RV and still had more than 50% charge. I would highly recommend this to anyone looking for a quality battery at a fraction of the price. It was packaged really well.
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Reviewed in the United States on June 9, 2026 by Priscilla
Style: 2Pack-8Ah
Fits and works in my Cyberpower 1350AVR. The question is- will this last as long as a dedicated LiFePO4 UPS, since this was designed for lead acid batteries. I recently purchased on of those new Lithium UPS Battery Backup and Surge Protector (you can search that) and it appears to be worth it. However, it made me wonder how long a regular UPS would last with the new LiFePO4 batteries in it. After watching YouTube videos about making that switchover, and seeing this battery 2-pack at such a reasonable price, I decided to go for it. Perfect fit, and seems to be working well. So we'll see if it lasts longer than regular lead acid batteries. A bonus was that these batteries are 1 Ah greater in capacity, so they should last a bit longer when electricity is lost.
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Reviewed in the United States on May 5, 2026 Reviewed in the United States on May 5, 2026 by DrHTPC
Style: 2Pack-8Ah
Ive ordered more than 8 of these over the last year for 12v Boom Box builds with ZK1001U amps. All in all they have performed pretty good and last more than 10hrs of realistic volume play. I have had one bad out of the box that must have had a bad cell, it would show fully charged but as soon as you placed a load on it it would go to ~9v.
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Reviewed in the United States on May 12, 2026 by redflash
I have had this battery for several months and very impressed with it. It ran my trolling motor with spotlock for 3 days without charging. I have used it with a 1500 watt inverter to run two 20" commercial grade fans for about 4 hrs with no issues. Hard to believe there is that much power in a small battery.
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Reviewed in the United States on June 8, 2026 by Ted Bradshaw