NERMAK

12V 10Ah Lithium LiFePO4 Deep Cycle Battery 2000 Cycles Rechargeable Battery for Solar Wind Power Lighting Power Wheels

526+ bought in the past month

$25.00$109.99

About this item

  • 【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 very low self-discharge rate. (Not motorcycle starter battery)
  • 【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: Emergency Lighting (LED strip etc), 12V router, RV/outdoor camping, kids ride on toy car, scooters, power wheels, fish finders, small UPS(Less than 200W),backup power, Ham Radio, Home Alarm, Cellular remote camera, Solar/Wind power and more...
  • 【Expansion and Recharge】Can be connected in series or parallel, in series, Up to 4 identical batteries can be connected,Quick charge by 6A , and heavy-duty output discharge up to 10A continuous and 2C Pulse.
  • 【Warm Note】: 1* 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)
$25.00
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Product details

BrandNERMAK
Vehicle Service TypeFish finder,12V router,Lighting,Ride on toys
Size12V 10Ah
Voltage12.8 Volts
Battery Cell CompositionLithium-Phosphate
Item Weight1.2 Kilograms
Product Dimensions5.94"D x 2.56"W x 3.71"H
TerminalF2 Terminal
Battery Capacity128 Watt Hours
ManufacturerNERMAK

Technical specifications

brandNERMAK
size12V 10Ah
product_dimensions5.94"D x 2.56"W x 3.71"H
terminalF2 Terminal
battery_capacity128 Watt Hours
manufacturerNERMAK
upc643459768994
item_weight2.64 pounds
item_model_number12V10A
batteries1 Lithium Ion batteries required. (included)
best_sellers_rank#10,994 in Health & Household ( See Top 100 in Health & Household ) #8 in 12V Batteries
is_discontinued_by_manufacturerNo
date_first_availableJuly 10, 2021

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Customer reviews

4.32,935 ratings

Customers say

Customers find the battery works well, with one mentioning it performs perfectly for night fishing lights, and they appreciate its power delivery, with one noting it provides enough amperage to start a generator.

★★★★★

Great cost for an effective replacement.

Devon HillsAugust 14, 2025

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. Read more

★★★★★

Great little battery

james millerNovember 12, 2025

This small lithium battery has performed very well through six fishing outings supplying Power to my Humminbird Helix 5 fish finder. It holds the charge through 6 hours on the water. I highly recommend this light weight battery. Read more

★★★★★

Battery does not last but warranty honored.

Luisa MurciaAugust 25, 2025

Battery worked great at the start, we followed charging instructions but did not last more than a month. Now it won’t hold a charge. It’s a dead battery that got very little use out of it. However, customer service was great, warranty was honored and a new one was sent out. I will provide an update on the next battery to see if this one lasts longer. Read more

★★★★★

Upgraded my Generator Battery

RGSJanuary 7, 2026

Excellent brand, using it in my Generator now. This is a Lithium Phos battery. Upgraded to this 10Ah from a 5 Ah original basic battery These are great for holding a charge (trickle charge to keep battery up) Only need to trickle charge every month for a few days. Read more

★☆☆☆☆

Not ideal for lead acid battery replacement for UPS

SMarch 10, 2025

I’d recommend against usage for “legacy” UPS lead acid battery replacement, specifically the common case of quantity 4 or 2 battery systems. These usually are setup with the batteries in series (4x12v = 48v, 2x12v=24v). You are likely better off throwing the legacy lead acid battery UPS away, and buying a lifepo4 based UPS. Even the Lifepo4 portable batteries like the power 1000 have UPS capability. The ups devices that start with a lifepo4 energy source usually have passive and active cooling for the battery array, in addition to the inverter components. There are a few problems with using these in a legacy lead acid battery UPS: 1. The continuous output current is far lower than lead acid batteries. The typical Lifepo4 compatible battery option is rated at 10amp continuous. So, in a 4 battery series system, you’ll get at most about 135w continuous output per battery - so about 500watt max. You won’t get anything near the potential needed in common 1000w, 1500w, and 2000w ups. 2. The BMS present in the lifepo4 batteries generally needs at least exposed passive cooling, or even active cooling. These are enclosed package batteries, so cooling is limited at best. 3. With 4 12v lifepo4 batteries in series, you’d basically need another BMS to manage the 4 batteries, or the discharge and charge levels between batteries becomes imbalanced. 4. The charging circuit will not fully charge lifepo4 batteries, in most cases. Lead acid vs. lifepo4 have different max voltage levels. 5. The legacy ups doesn’t know the proper estimated runtime or charge level of lifepo4 batteries. This is a relatively minor issue compared to above. Technically, a 48v lifepo4 pack that fits most UPS battery compartments could be built to handle several of the issues above. As an experiment, I fully charged up 4 of these individually outside a UPS, then installed them in the ups. Verified the output of the pack was approx 55.8v. The charge/discharge circuit ”popped” with the telltale electronics burning smell, with smoke, when a 200w load AC power fail test was triggered. These batteries may be ok for some cases, like the single battery backup common to home alarm system panels. Read more

★★★★☆

Early Impressions: A Perfect Fit for the UPS 550

DaveJanuary 3, 2025

Just a few days into owning this battery, and so far, so good! It’s a perfect match for my UPS 550 (model B0019804U8—the same trusty unit I purchased years ago). Compatibility Check: The UPS recognizes and charges the battery without a hiccup. System Integration: The data cable accurately reads the battery's charge capacity—no issues there. Performance Under Load: The UPS does its thing like a champ, seamlessly drawing power from the battery without errors. Now, onto the one thing I can’t tell you yet: whether this 10Ah battery offers longer run times compared to the 7Ah OEM version. Honestly, I’ve never paid much attention to runtime—I just configure the system to keep my home server running until it gracefully shuts down. (It’s tucked away in a basement closet, doing its thing.) For comparison, I have another UPS 550 with a 6+ year-old OEM battery, but let’s be real—it’s way past its prime and totally untrustworthy for runtime comparisons. The Bottom Line: If you’re looking to save some cash on a battery replacement, this one is a solid option. It’s significantly cheaper than the APC-branded OEM battery and only slightly pricier than the absolute bargain options. That said, I’d think twice about going for the cheapest of the cheap—after all, this is a battery we’re talking about. You don’t want something leaking, exploding, or catching fire! Even if it’s not a “true” 10Ah battery (who really knows?), it’s doing a great job in my book so far. Read more

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