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NERMAK

Nermak 2 Pack 12V 10Ah Lithium Ion LiFePO4 Deep Cycle Battery, 2000+ Cycles Rechargeable Battery for Solar/Wind Power, Scooters, Lighting, Power Wheels, Fish Finder Built-in 10A BMS

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Style: 12V 10Ah-2PACK


Features

  • Superior Performance: Lithium iron phosphate battery has high energy density, Long cycle life, Good safety performance, No memory effect, etc. NERMAK LiFePO4 battery has built-in BMS protection to prevent overcharge, Over-discharge, Over-current and short circuit, and excessive low self-discharge rate ensuring up to 1-year maintenance-free storage.
  • Long Cycle Times: Lithium batteries 2000 + cycles no problem while the traditional lead-acid batteries only 200-300 cycles, More safety and environmentally friendly than lead-acid batteries.
  • Widely Uses: Widely uses in most areas such as: Lighting (LED strip etc), Scooters, 12V router, RV/outdoor camping, Power wheels, Fish finder, Backup power, Ham Radio, Cellular remote camera, Solar/Wind power and more...
  • Expansion and RechargeCan be connected in series or parallel, in series, Up to 4 identical batteries can be connected,Quick charge by 5A , and heavy-duty output discharge up to 10A continuous and 2C Pulse.
  • Warm Note: 2*12 Volt Replacement lithium ion battery,12 months warranty, If you have any question for our product, Contact us: click the "Ask a question" on our storefront or in "YOUR ORDER" options click the "contact seller" (please use LiFePo4 special charger, with fully automatic SLA charger may not be fully charged)

Description

LiFeP04 batteries are maintenance-free batteries, If you need them all the time, Then lead-acid becomes too unreliable and laborious, The battery's lithium-ion properties reduce the weight of traditional lead-acid batteries to less than half, While significantly improving performance and capacity, Traditional lead-acid batteries contain large amounts of lead, After disposal if not properly disposed of, Will pollute the environment, While lithium materials without any toxic or hazardous substances, Recognized by the world as a green battery, Its great durability allows you to easily use them at home and at work, Or safe outdoor needs , The environment is most important. Recommend using a professional LiFePO4 charger to charge the battery so that it can be charged to its full capacity (existing lead-acid battery chargers (wet, AGM or gel) will also work fine) Lithium ion batteries can be discharged up to 100% without causing damage. Make sure to charge the battery immediately after discharge. We recommend limiting the discharge to 80-90% depth of discharge (DOD) to avoid disconnection of the battery by the BMS. 12V LiFePO4 battery have no liquid inside. This allows you to safely mount the battery where you want to place it. Please note! Our battery is not a starter battery, it can't be applied to motorcycle, go-kart, generator, lawn mower, trolling motor, jump starter, UPS above 1500VA/1000W, scooter above 24V 350W, etc. The working current of our 10Ah battery is 10A, the maximum can't be more than 15A, because the current is longer than the battery's working current for a long time will damage the battery. Rechargeable deep cycle maintenance-free LiFeP04 battery, Which is characterized by small size and light weight, Very suitable for fish finder, 10ah capacity can continue to provide a constant source of energy, So you can easily enjoy your fun. Founded in 2014, the company is a professional new energy battery and accessories manufacturer. Has a R&D team with nearly 10 years of industry experience. Insist on using brand new A-grade battery cells. Strict quality control assembly factory Provide customers with more and better quality products

Brand: NERMAK


Vehicle Service Type: Fish finder,12V router,Lighting,Small UPS,Ride on toys


Voltage: 12.8 volts


Battery Cell Composition: Lithium-Phosphate


Item Weight: 1.2 kg


Product Dimensions: 5.94"D x 2.56"W x 3.91"H


Number Of Cells: 2


Terminal: F2 Terminal


Battery Capacity: 10 amp_hours


Unit Count: 2 Count


Compatible with Vehicle Type: Fish finder,12V router,Lighting,Small UPS,Ride on toys


Voltage: 12.8 volts


Number Of Cells: 2


Terminal: F2 Terminal


Battery Capacity: 10 amp_hours


Item Weight: 1.2 kg


Item Dimensions D x W x H: 5.94"D x 2.56"W x 3.91"H


Battery Type: Lithium-Phosphate


Brand Name: NERMAK


Manufacturer Part Number: 12V 10Ah-2PACK


Unit Count: 2 Count


Model Number: 12V10A


Manufacturer: Huizhou Yu'an Technology Co., Ltd.


Number of Items: 1


Included Components: 2*12.8V 10Ah LiFePO4 Battery


Manufacturer Warranty Description: 1 year


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Sep 2

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

    • Great cost for an effective replacement.
Style: 12V 10Ah-2PACK
Although slightly shorter in height than original batteries, work like a charm. I have replaced the batteries in a 90's fold n go power scooter with these amazing little gems. Can and does still use its original charger, battery pack is now half the weight of what it used to be, and packs quite the punch. Installed very easily by swapping everything over to the new batteries, fully charged in very little time and scooter that had been sitting for years was back on the road. ... show more
Reviewed in the United States on August 14, 2025 by Devon Hills
    • Seems to work OK with Cyberpower UPS
Style: 12V 10Ah-2PACK
I purchased two 10 AH 12 V batteries and received them today (6-30-26). I installed them in my Cyberpower CP1500PFCLCD UPS as a test to see if they would both fit and power the unit. The fit test worked great. I was concerned that the dimensions listed for these LiFePO4 batteries were slightly larger than those listed for the OEM batteries. I tested functionality both plugged in and unplugged with the UPS powered on and everything seemed to work as it should. I then connected the UPS with my electronics and turned it on (connected to the AC power) and everything is working OK so far. At present, I see no reason why Cyberpower ups owners shouldn't use this battery substitute instead of the OEM lead-Acid version but I will update this review in the future if I encounter any issues with these batteries. Afterthought: While the mfgr doesn't recommend this battery solution for UPS above 1000 VA, I felt confident using it in a 1500 VA unit because my electrical loads are very light compared to the UPS rating AND I have whole home electrical backup so the UPS would not have to carry the load using the batteries for more than 2 seconds when an outage occurs. I don't know if I could honestly recommend this solution for someone who relies solely on the UPS for backup during a long outage with over 1000 watts of load connected. Be sure that you will only expect light loads during any outage if you decide to install these batteries in your UPS. For those wondering why I even use a UPS with whole home backup: The delay to switch to the home backup can take as long as 2 seconds to kick in when a grid outage occurs. The ups switches much faster (~ 20 ms) and keeps my electronics powered during that short delay. ... show more
Reviewed in the United States on June 30, 2026 by David
    • Good battery replacement
Style: 12V 10Ah-2PACK
3 of the 4 batteries I received still work and charge. One battery seems to have died and will not take a charge. Apparently the return window is up and I can't get support. Would not recommend simply because one of the batteries have already died. I purchased in February 2026. Nermak reached out and refunded me the amount for the battery. Customer service team stepped up where the battery failed and made things right. This shows they stand behind their products and understand sometimes things happen. I appreciate the assistance and have adjusted my review rating due to exceptional communication and customer service. ... show more
Reviewed in the United States on May 22, 2026 by druff09
    • Does not last
Style: 12V 10Ah-2PACK
Worked great for the first few cycles then the capacity fell off a cliff and would only provide 2 or 3 Ah. No where near the full 10 Ah. After some research it seem the likely explanation is the battery contains cheap mismatched cells with poor internal battery management circuitry. When charging, one cell reaches it’s full voltage, then shuts off to prevent overcharging. This prevents the other partially charged cells from completely charging. The result is a battery that measures a fully charged voltage then discharges rapidly because it is effectively running off one cell. ... show more
Reviewed in the United States on June 21, 2026 by Kevin T
    • Pay attention to load and amps.
Style: 12V 10Ah-2PACK
Overall good quality. The capacity measured around 14 Ah for both discharging and charging, despite the fact that 10 Ah is specified.. However, I tested them under low-load conditions, just 1A. Keep in mind that there will be a significant voltage drop under heavy loads. With a 7A load, the drop was 1 volt; instead of 13.3V, you get 12.3V, causing your charge controller to mistakenly indicate that the battery is nearly depleted. So, yes—the batteries can handle loads of up to 10A, but this comes with a substantial drop in both voltage and capacity. Instead of 14Ah, you get 10Ah. That is precisely why they rate them at 10Ah: because that is the capacity available under maximum load. 4 stars due to the significant voltage drop. That said, the battery cells themselves appear to be of quite good quality, with low degradation rate. However, they are definitely not rated for a 10A load; I’d say 5A is the maximum, but better for long life use 1-3A. ... show more
Reviewed in the United States on June 30, 2026 by Maks
    • They work well, but
Style: 12V 10Ah-2PACK
You should get a LiFePO4-aware charger for these. If substituted for equivalent SLA batteries in a device designed for SLA batteries, you need to keep them topped off if the device responds to current variations. Generally, these batteries perform to specifications, they are surprisingly lightweight, and don't lose charge with time. ... show more
Reviewed in the United States on July 26, 2026 by Greg nul
    • I have 3
Style: 12V 10Ah-2PACK
I have 3 total one is in a fish finder the other two replaced in battery speakers. Saved weight and last a lot longer that lead acid. If you have an old portable speaker that may have a second life see if you can replace it.
Reviewed in the United States on July 24, 2026 by Amazon Customer
    • good upgrade for Lead Acid Batteries
Style: 12V 10Ah-2PACK
about 20% more runtime on my UPS it was a tight fit but works flawlessly so far
Reviewed in the United States on July 30, 2026 by Mark W Hill

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