12V 20Ah Lithium LiFePO4 Battery, 4000+ Deep Cycles Rechargeable Battery for Kayak Fish Finder, Lighting, Back-up Power and Radio
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Availability:
In Stock.
Arrives
Sunday, Jul 19
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Set name: 12.8V 20Ah
Features
- Superior Performance: The OKMO 12V 15Ah LiFePO4 battery is the perfect replacement for traditional lead-acid batteries, offering higher energy density, better stability, and increased power. It's also significantly lighter at just 3.5 lbs, only a third of the weight of lead-acid batteries
- Extended Lifespan: Offering over 4000 cycles and a 10-year lifespan, this battery supports 100% Depth of Discharge (DOD) and State of Charge (SOC), delivering superior performance. You can also connect in series or parallel for up to 4P4S expansion
- Advanced Protection & Low-Temperature Safety: Equipped with a 15A Battery Management System (BMS), it provides overcharge, over-discharge, overcurrent, overheating, and short-circuit protection. The Low-Temperature Charging Protection (LTCP) feature ensures reliable performance.
- Safety & Eco-Friendly: Our LiFePO4 battery ensures top-tier safety with no risk of fire or explosion. Free from heavy and rare metals, its environmentally sustainable. Designed for stable performance in both high and low extreme temperatures, its safe for indoor and outdoor use
- Versatile Applications: The OKMO 15Ah LiFePO4 battery powers a range of devices, including fish finders, LED lights, mobile devices, fans, alarm systems, outdoor camping gear, laptops, small UPS systems, and ham radios. It also works with your solar panels
- Note: our lithium-ion battery ship at 50% charge for safe use and storage, please use LiFePo4 special charger to full charge before your first use
Brand: OKMO
Vehicle Service Type: Boat
Voltage: 12.8 Volts
Battery Cell Composition: Lithium-Phosphate
Item Weight: 1.59 Kilograms
Product Dimensions: 6.22"D x 4.25"W x 4.72"H
Automotive Fit Type: Universal Fit
Manufacturer: OKMO
Compatible with Vehicle Type: Boat
Voltage: 12.8 Volts
Automotive Fit Type: Universal Fit
Item Weight: 1.59 Kilograms
Item Dimensions D x W x H: 6.22"D x 4.25"W x 4.72"H
Battery Type: Lithium-Phosphate
Brand Name: OKMO
Manufacturer Part Number: 1215
Model Number: 1215
Manufacturer: OKMO
Manufacturer Warranty Description: 5-year
Included Components: Lithium battery
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Jul 19
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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Similar Products
Top Amazon Reviews
Set name: 12V 15Ah
I recently upgraded to the OKMO 12V 15Ah LiFePO4 Lithium Battery, and I couldn’t be more impressed! The first thing I noticed is how incredibly light this battery is—less than half the weight of the one I replaced. At just 3 lbs 7 oz, it’s so easy to handle compared to traditional lead-acid batteries, and it fit perfectly in the UPS system I’m using it for. The performance has been fantastic. It’s reliable, and I can already tell that it’s going to last for years, with its 4000+ deep cycles and 10-year lifespan. The built-in Battery Management System (BMS) gives me peace of mind with protections against overcharging and short-circuits, and the low-temperature protection is an excellent bonus. One thing to note is that LiFePO4 batteries are a bit different from lead-acid ones, so make sure you know what you’re doing before installing it in a UPS or any other system. But if you do, you’ll love it as much as I do! Highly recommend for anyone looking for a safe, and long-lasting battery for various applications!
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Reviewed in the United States on October 13, 2024 Reviewed in the United States on October 13, 2024 by Austin
Set name: 12.8V 20Ah
I purchased two of these batteries so I could hook them together in series for 24 volts. One of the batteries was Dead on arrival. I emailed the company which was very prompt in there return email. After they verified the problem they had a new battery sent to me. Great company to work with. I've got them both connected together and charged, so I'm getting my 24 volts for my electric outboard.
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Reviewed in the United States on January 25, 2026 by Dennis
Set name: 12V 15Ah
Battery stabilized at about 14 ah average cycling,Works great as a portable power station with coulomb meter, auto 12 volt usb port and few 12 volt ports for test gear and recharging laptops,cell phones and tablets. I also Use it with clampable goose neck work lights that use leds.. Use a waterproof plastic ammo box.
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Reviewed in the United States on February 6, 2026 by Ellen P
Set name: 12V 15Ah
This tiny battery comes in at just over 3 pounds, and measures less than 6x4x4”. Comes well protected and ready to go with 12.5v right out of the box. I’m impressed. Most batteries of this size barely has 8ah of capacity, but this one has 15AH! Lots of plans to use this in the shop for testing, powering tools, and it’s light and portable to put in the kid’s toys and bring it back in to recharge. Very pleased with it so far. 👍 EDIT: 6/2/26 I was so pleased with the performance of my previous OKMO battery that I got another, even slimmer one to fit my needs. This new one has 33% more AH than the previous, in a slimmer sleeker profile. So far, both has been performing as expected, and amazing!
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Reviewed in the United States on January 24, 2025 Reviewed in the United States on January 24, 2025 by Shawn Hu
Set name: 12.8V 100Ah with Bluetooth
Terrible company. Do not buy. The battery I received did not have functioning bluetooth. I sent 3 emails to their customer service department with no response. Amazon had to step in and email them for me, but they still did not respond. Fortunately Amazon stepped up and is refunding this for me. I would recommend staying away from this company and find a more reputable brand.
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Reviewed in the United States on June 19, 2026 by DSwift
Set name: 12.8V 20Ah
Works great on my Kayak, i use it for lights and for my sonar (Garmin UH2), definitely worth it if you're looking for a reliable battery, checkout my install and review on my YT channel JrzOutdoors
Reviewed in the United States on February 26, 2026 by Jr
Set name: 12V 15Ah
I bought this 12V 15Ah LiFePO4 battery and it has exceeded my expectations. Its performance is excellent, with over 4000 charge cycles ensuring a long lifespan. I use it in my solar system and in my kayak to power the fish finder, and the lifespan is impressive. It is light, safe and recharges quickly. Plus, it doesn't have overheating issues like other lead-acid batteries. Definitely an excellent investment for those looking for a reliable and efficient battery. Highly recommended!
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Reviewed in the United States on February 12, 2025 by gendrik
Set name: 12V 15Ah
Using it to power a G90 Transceiver in the field. Have not used it too much as it is winter and too cold for me to go out and play radio. It is light and reasonably small.
Reviewed in the United States on January 9, 2026 by W. J. Subda