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HWE Energy

12V 25Ah LiFePO4 Rechargeable Battery for Fish Finder, Ride-on Toys, UPS

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Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Sep 9
Order within 19 hours and 46 minutes
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Set name: 12V 25Ah


Features

  • Easy-to-Read LCD Meter HWE Energy 12V 25Ah LiFePO4 battery come with a dedicated LCD Meter that shows real-time voltage and SOC power with one button press. Never-worry about forgetting to charge when you need it most. Note: Please recharge with a lithium battery charger when below 20%
  • Ditch Your Old SLA Battery Upgrade to HWE ENERGY 12V 25ah rechargeable lithium battery with industrial-grade A cells, offering up to 5000+ deep cycles and lasting up to 10-years lifespan. At just 4.8lbs, it's less than half the weight of traditional 12lb sealed lead acid(12V25AH/20hr) batteries that last 3years lifespan and 300-500cycles, Reducing replacement frequency and costs
  • Wide Compatibility Enjoy quiet and stable energy from the HWE Energy 12V 25Ah LiFePO4 battery, compatible with models like 12200 20-12 25-12 series SLA batteries, UB12200, FM12200, 6FM20, ML22-12, ML18-12, DJW12-20, and more. Replacement for home security alarm system, solar, RVs, fish finder, small UPS backup, speakers, HAM-radios, trolling motor, Kayak battery, ride-on toys, off-grid, outdoor camping, lighting, emergency house backup, 12V battery for garage gate opener, deer feeder battery and more
  • Advanced Safety BMS HWE ENERGY 12.0 Volt 25AH lithium battery features a smart 20A BMS for protection against overcharge, over-discharge, overcurrent, and short circuits. Ultra-low self-discharge keep your battery safely in both hot weather and cold weather. Operating voltage: 10V15V, max output: 20A. NOTE: This is not a starter battery
  • User-Friendly Compact at just 7.12 x 3.03 x 6.65 inches and lightweight 4.8lb, HWE Energy 12 volt 25 amp lithium battery features an M5 screw terminal for easy installation. The lightweight design means you can carry and set it up anywhere you need power
  • Expandable Connection HWE Energy 12v25ah lifepo4 rechargeable battery supports series 2pcs connection to create 24V 25Ah battery system and parallel connection for 12V 50Ah/75Ah/100Ah battery system. Note: Ensure all batteries are fully charged separately before connecting in series

Description

Can I use the charger for my sealed lead-acid(SLA) battery to charge the LiFePO4 battery? Due to differences in charging logic, we do not recommend using a lead-acid battery charger to charge lithium iron phosphate batteries for extended periods. You may use a lead-acid battery charger to charge lithium batteries in an emergency. Why is the battery voltage 0V? Or why won't my battery charge? When the battery voltage is too low (typically below 10 V), the Battery Management System (BMS) disconnects the battery discharge system to protect the cells, and the voltage will display as 0V. What should I do if the battery voltage is 0V and it won't charge? You can connect a charged battery in parallel ("+“ to ”+“, ”-“ to ”-“) with a battery that is at 0V (or cannot be charged). The BMS system will automatically activate as the voltage rises, at which point the battery can be recharged again. 12V 25Ah LiFePO4 Battery 12V 20Ah LiFePO4 Battery 12V 9Ah LiFePO4 Battery 12V 7Ah LiFePO4 Battery 12V 5Ah LiFePO4 Battery HWE Energy has over 23 years of experience in battery R&D, manufacturing, and international marketing, and is ranked among China’s top 100 lithium-ion battery exporters. With a 120,000-square-meter factory, a dedicated R&D team, experienced staff, and state-of-the-art equipment, we are able to provide you with high-quality battery products that meet your expectations.

Brand: HWE Energy


Vehicle Service Type: Home security alarm system, Solar storage, Fish finder, Small UPS backup, Speakers, HAM-radios, Kayak battery, Ride-on toys, Off-grid, Emergency house backup/lighting, Gate door opener, Deer feeder See more


Size: 12V 25Ah


Voltage: 12 volts


Battery Cell Composition: Lithium Ion


Item Weight: 4.9 pounds


Product Dimensions: 3.03"D x 7.12"W x 6.65"H


Terminal: M5


Item Highlight: Voltage Display, 20A BMS, 5000+ Deep Cycle 12 volt Lithium Battery Replacement for 6FM20, Solar, Alarm System, RVs Backup See more


Unit Count: 1 Count


Compatible with Vehicle Type: Home security alarm system, Solar storage, Fish finder, Small UPS backup, Speakers, HAM-radios, Kayak battery, Ride-on toys, Off-grid, Emergency house backup/lighting, Gate door opener, Deer feeder


Voltage: 12 volts


Terminal: M5


Automotive Fit Type: Universal Fit


Size: 12V 25Ah


Item Weight: 4.9 pounds


Item Dimensions D x W x H: 3.03"D x 7.12"W x 6.65"H


Battery Type: Lithium Ion


Brand Name: HWE Energy


Manufacturer Part Number: ‎HW-4F25


Unit Count: 1 Count


Model Number: HW-4F25


Manufacturer: HWE Energy


Number of Items: 1


Included Components: 12V 25AH Battery, User Manual


Manufacturer Warranty Description: 2 Year Warranty


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Sep 9

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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Top Amazon Reviews

    • Nice battery for small applications
Set name: 12V 25Ah
I bought this to use with my RV pressure maintainer pump and it works great. We use it in an off grid rain barrel system to water our garden. I like that the battery indicates voltage and charge level easily with the push of a button. It is also light weight and fits nicely into my pump equipment box. ... show more
Reviewed in the United States on July 26, 2026 by WCVT
    • Working fine in consumer UPS after 18 months
Set name: 12V 9Ah
I have two of these doing very light duty as drop-in replacements in APC brand consumer UPS with small loads of under 100 watts each. I'm at about the 18 month mark and both of the batteries I have still pass the periodic UPS self-check and work fine during brief power blips of a couple seconds to about a minute. I haven't tested their extended runtime and tbh wouldn't necessarily trust them to give the full 9Ah worth of juice; my eventual plan is to set up the computers to start shutting down after an outage of more than 60 seconds. ... show more
Reviewed in the United States on June 2, 2026 by A Student
    • So far so good.
Set name: 12V 20Ah
Battery works good and as it should. Having the screen is so convenient it's almost pointless to buy one without it. I have this one running a Garmin 10" chartplotter on my boat and it does amazing. Fits nicely anywhere I want on the boat. Light and small in size. You can't ask for much more at this price, it's a good buy but only time will tell how long it lasts. ... show more
Reviewed in the United States on June 28, 2026 by Dee
    • UPS? It depends.
Set name: 12V 9Ah
It fit an common sized 1500VA home UPS and will restore it to working order. It will run and power appliance but do not expect anywhere near the original 1500VA rating if you replace its lead battery with this. Lead battery can output huge current, at least 62.5A for 2 in series powering full 1500VA load. They will only last like 2 minutes when brand new and will age very quickly if it happens frequently, but they can do it. LifePO4 cannot. They are usually rated at ~2C, which this one is close. It have a maximum discharge rating at 15A which is slightly less than 2C. This means your 1500VA UPS are now ~300VA. Any more it will trip battery over current protection and power will be gone. If you just want the UPS to power a common home PC, or maybe keep your router running during power loss, it will be great. UPS will be lighter and run for longer, with battery lasting longer than original lead(so less money per year), and the efficiency is way better for powering a under rated load. If you want it to actually carry anywhere close to 1500VA load lead battery is still the only way to go. ... show more
Reviewed in the United States on July 20, 2026 by Complex
    • Excellent battery so far
Set name: 12V 20Ah
I have this connected in parallel with another 20AH battery. This has worked flawlessly on three 8 hour fishing trips so far with plenty of power left over. I may try running my live scope on this battery only just to test, but I don’t foresee any issues. Recommend for sure.
Reviewed in the United States on July 31, 2026 by S Silva
    • WARNING!
Set name: 12V 9Ah
The reviews were great and I was excited to receive these batteries. I was convinced these were exactly what I needed for my deer feeders. I have always used lead acid batteries in my feeders and just pull them to recharge every few months when they drop in voltage too much. I don't have them hooked up to a recharging system of any kind. These worked great for about 2.5 months for one and 3 months for the other. In both cases, they had enough voltage to operate the timer and feeder normally and then died quickly to literally ZERO volts. The second one I ran a test throw on the timer, the feeder threw at full power, then the screen went blank. I pulled the battery and confirmed voltage was ZERO just like the first one. I spent about 2 weeks to try and get to take a charge and they will not. I then called Amazon and was told there was a 1 year warranty but I have passed the 30 day return deadline. No problem, they actually gave me contact emails to reach out to HWE. Their website contact info is 100% Chinese contacts and my attempts to contact them didn't work. So, I assumed that Amazon's contact emails would work but they just went into a black hole. No response at all after multiple attempts. My assumption is that if these batteries are recharged full time like in a UPS or something that maybe they are fine, but even UPS can fully drain a battery when power goes out. Be aware that these batteries have internal circuitry that literally kill it to ZERO volts if it gets drained too much and there is no bringing it back. Please note that there is no functional warranty either. I wouldn't purchase these again for any reason. ... show more
Reviewed in the United States on January 5, 2026 by JimS
    • A good alternative
Set name: 12V 5Ah
Your battery seems like a good option over the over priced OEM unit. It installed and changed just like it should. Only time will tell how long it will last, I have high hopes. The price sold me.
Reviewed in the United States on June 30, 2026 by Craig L
    • So much better than OEM
Set name: 12V 5Ah
Great .. much better than OEM lead acid battery.. light weight, better performance.. works great
Reviewed in the United States on August 11, 2026 by luma

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