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ExpertPower

ExpertPower 12V 20Ah Lithium LiFePO4 Deep Cycle Rechargeable Battery | 2500-7000 Life Cycles & 10-Year lifetime | Built-in BMS | Perfect for RV, Solar, Marine, Overland, Off-Grid Applications

  • Based on 251 reviews
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Availability: In Stock.
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Arrives Friday, Aug 7
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Style: 20 AH


Features

  • Trusted by Industry Professionals and Installers: With a proud legacy of 36 years in the industry, now our LiFePO4 batteries have earned widespread adoption across various industries, endorsed by professionals and installers alike. Selling over a million batteries and over 80 Megawatt-hours of energy every year and growing, our track record speaks volumes about our product's reliability and performance.
  • Unmatched Cell Technology: Our LiFePO4 batteries are crafted using state-of-the-art cells, setting a new standard in battery design. Held to the highest standards and quality checks, our cells make our batteries outshine the rest. Our LiFePO4 batteries provide 4000 to 7000 cycles & a 10-years expected lifetime compared to others in the industry.
  • Cutting-Edge BMS for Superior Battery Performance: With our proprietary Battery Management System (BMS), precisely optimized to complement our specific cells, you can expect maximum useful life and unparalleled battery protection, ensuring years of uninterrupted enjoyment. Our industry leading built-in Battery Management System (BMS) protects the battery cells from overcharge, deep discharge, overloading, overheating, low-temperatures and short circuits.
  • Unparalleled Resilience through Rigorous Testing: Our prismatic cells undergo rigorous testing across a multitude of conditions: from puncturing, to fire, short circuit, and even high impact damage, our cells are tested against all types of damage, providing outstanding resilience and the peace of mind you deserve.

Description

About Us ExpertPower is a Los Angeles-based energy solutions company located in the heart of beautiful southern California. Since its establishment in 1987, ExpertPower has worked hard to earn its reputation as the most dependable in the business. Our product reviews are from actual customers who both appreciate and trust the quality they have come to expect from our products. From our smallest battery pack to our largest energy storage system, ExpertPower designs, manufactures, distributes, services and supports energy storage solutions that provide customers with superior value. Our broad global network provides a wide variety of energy storage equipment, storage solutions and support services. Our mission at ExpertPower is to empower individuals and communities to live sustainable and fulfilling lives by providing innovative energy solutions that enable energy independence and a greener future. ExpertPower’s newest line of batteries.

Brand: ExpertPower


Vehicle Service Type: Scooter


Size: 1 Count (Pack of 1)


Voltage: 12.8 volts_of_direct_current


Battery Cell Composition: Lithium-Phosphate


Product Dimensions: 3"D x 7.1"W x 6.8"H


Number Of Cells: 4


Resistance: 0.33 milliohms


Terminal: Marine Terminal


Battery Capacity: 20 amp_hours


Compatible with Vehicle Type: Scooter


Voltage: 12.8 volts_of_direct_current


Number Of Cells: 4


Resistance: 0.33 milliohms


Terminal: Marine Terminal


Battery Capacity: 20 amp_hours


Size: 1 Count (Pack of 1)


Item Dimensions D x W x H: 3"D x 7.1"W x 6.8"H


Battery Type: Lithium-Phosphate


Brand Name: ExpertPower


Manufacturer Part Number: EP1220


Unit Count: 1 Count


Model Number: EP1220


Manufacturer: ExpertPower


UPC: 814832028961


Global Trade Identification Number: 61


Manufacturer Warranty Description: Two-Year Warranty


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Aug 7

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.

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Similar Products

Top Amazon Reviews

    • It never dies!
Style: 20 AH
I am using the Expert Power 20ah LifePO4 battery for a portable crossband repeater for search and rescue. The light weight lithium battery was perfect in cutting down weight of the repeater. The up front cost is bit more than a SLA, but it's well worth it. They best part is you get ALL 20ahs of LiFePO4, where SLA is maybe half it's advertised capacity. I did a trial run, with the repeater pulling about 4 amps on transmit and .3 amps on standby. The repeater was on and actively transmitting a busy local channel. I expected maybe 8 hours of run time till it got low. It's been going for 12 hours and is only down to about 60% capacity! I have an Expert Power 18ah SLA and you'd be lucky to run a radio for 6-8 hours before the depth of discharge got to low. Thanks Expert Power for a great battery at a great price. It is very well constructed, durable, and I expect it to last for a long time! ... show more
Reviewed in the United States on April 25, 2020 by John
    • Exactly Same Size As 12 Volt 20 Amp Lead Acid Battery
Style: 20 AH
You needed special charger to charge in series circuit into 2 of 12 volt LiFePO4 battery. I average 27 volt instead of 25 volt from lead acid battery for small, Drive Phoenix scooter. The speed were from 4MPH to 5MPH plus much higher torque as this scooter really climb firmly steep hill without bogging down. The range that nearly double. This battery is costly but it's really worth it. To me, lead acid battery that really suck. Less than 3 years later, one of battery were sagging at lower voltage. I may use the old weaker lead acid battery for solar use for lighter duty use with 20 watts solar panel with charging controller. ... show more
Reviewed in the United States on August 21, 2020 by Stan
    • Worked for about 9 months
Style: 20 AH
Worked for about 9 months then died. Zero voltage out put. Zero current charging. (Open circuit) More then likely the internal battery protection circuit died Has a open.
Reviewed in the United States on September 29, 2021 by S. Benner
    • Very Good battery for a small price!
Style: 20 AH
I love these LiPo batteries. Beats a lead acid marine ANY DAY OF THE WEEK!
Reviewed in the United States on June 6, 2026 by chris souder
    • Short Life!! No Support!!
Style: 20 AH
UPDATE: After several attempts I finally got in contact with "support". After numerous emails, I sent in the battery for testing at my expense. After not hearing anything for some time I had to contact them to get a status. They said my battery was able to be charged and discharged with no issues using their charger. I asked if they had done load testing on the battery but I did not get a reply. After a couple weeks they finally sent my old battery back to me. I did purchase their charger and charged my old battery. The first time I used the battery using my ham radio, after a few minutes the radio would shut off which is what my issue was to begin with. I sent them another email to say I still have the same issue and there was a specific reason I asked if they load tested the battery. That was about a week ago and I've never heard a response. So much for the world class support. This battery is probably okay for QRP operation on the ham radio but that's about it. So if you have any issues with this battery, don't expect a lot of support from this company. Original review. I have 2 of these. Purchased on in Mar 2022, had about 80 cycles on it for Ham Radio Parks on the Air running 110 Watts. In Jun 2023 my Genius 5 charger would report the cells are unbalanced and the BMS system shut off charging. After several hours tried again, it seemed to charge but when using the radio the voltage was too low to operate. I ordered another one Jun 2023 (silly me I could have contacted the mfg then). I have about 50 cycles on this new battery (I rotate batteries and the other one I use is an 18Ah battery not from this mfg) and now I am getting the exact same result where the charging shuts off and I have to wait hours to try again. A week ago I emailed support which promised 24 hour response. Got nothing. I went to their website and used their "contact us" form and tried again and that was a few days ago and nothing. So My review of 1 star not only reflects the wasted money for batteries that are suppose to last 10 years with thousands of cycles but also the lack of support I'm getting from the manufacturer. So Just be aware, if you have an issue with these you'll be on an Island with no support. ... show more
Reviewed in the United States on November 1, 2023 by Mark R. Hinrichsen
    • Runs my Irrigation all summer
Style: 20 AH
I have a remote + off-grid apple orchard, where this battery runs the valves and controllers (Sonoff smart relays) all summer. This receives power from a full-sized solar panel and inexpensive MPPT controller. It's run great for 3 years now.
Reviewed in the United States on January 9, 2026 by AKExcalibur
    • You get what you pay for. Buy a cheap battery get a cheap okayish experience...
Style: 20 AH
It's a goodish battery pack. I tested the capacity and yeah it hit 20Ah. But from the YouTube tests on this battery I've seen that the BMS has no temperature cut off so you have to know to not charge this battery when it's nearly freezing out 'if it's outside and not kept warm' Also I don't know how well this battery would so with just sitting unused because it seems to have a fairly high self discharge rate. I can charge it up to full, then the next day it's already down to 13.4, then a few days later it's already 12.8. That's really bad! ... show more
Reviewed in the United States on August 17, 2020 by Zachary W.
    • Works well with electric golf push cart
Style: 20 AH
Bought this battery for an electric golf caddy. Worked flawlessly and was still at 80% after the 18 hole round (semi hilly course). Well worth it! Bag boy navigator 2 caddy.
Reviewed in the United States on July 3, 2025 by jeremy

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