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12V 100Ah Lithium LiFePO4 Deep Cycle Battery, 4000+ Cycles Lithium Iron Phosphate Rechargeable Battery for Solar, RV, Marine, Home Energy Storage, Off-Grid Applications Built-in 100A BMS

  • Based on 2,299 reviews
Condition: New
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Availability: Only 5 left in stock, order soon!
Fulfilled by NERMAK

Arrives Jan 9 – Jan 10
Order within 23 hours and 59 minutes
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Style: 12V 100Ah


Features

  • Superior Performance: NERMAK 12.8V 100Ah Li-FePO4 battery consists of 4 cells, Built-in 100A BMS with overcharge, over-discharge, over-current and short circuit,Lithium iron phosphate battery has high energy density, Long cycle life, Good safety performance, No memory effect, etc.(Note: Our batteries cannot be used as car starting batteries!)
  • Long life & light weight: 4000+ cycles of lithium-ion batteries are no problem, while traditional lead-acid batteries only have 500-800 cycles. The battery does not contain acid, which is safer and more environmentally friendly than lead-acid batteries. Our lithium iron phosphate battery weighs only 24.3 pounds, which is only 1/3 of the weight of a lead-acid battery.
  • Widely Uses: Widely uses in most areas such as: Emergency Lighting, RV/outdoor camping, Marine, Home Energy Storage, Computer Power Backup, Off-Grid applications, Solar Panel Wind Energy Storage and more...
  • Expansion and Recharge: NERMAK 12 V 100Ah LiFePO4 battery can be connected in series or parallel, in series, Up to 4 identical batteries can be connected,Quick charge by 50A , and heavy-duty output discharge up to 100A continuous and 3C Pulse(5 seconds).

Brand: NERMAK


Size: 12V 100Ah


Product Dimensions: 6.3"D x 12.79"W x 8.66"H


Terminal: M8


Manufacturer: NERMAK


Product Dimensions: 12.79 x 6.3 x 8.66 inches


Item Weight: 24.1 pounds


Item model number: 12100


Batteries: 1 Lithium Ion batteries required. (included)


Is Discontinued By Manufacturer: No


Date First Available: April 12, 2022


Manufacturer: NERMAK


Country of Origin: China


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jan 9 – Jan 10

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Outstanding customer service
Style: 12V 10Ah
This is really a great battery, very light and reasonably priced. Their customer service is very responsive and incredible to work. You won’t be disappointed with this battery.
Reviewed in the United States on December 19, 2024 by Mike

  • Update - failed within 1 day
Style: 12V 18Ah
Update 4 days later, 10/11/2024 Well...this did not work out. The battery arrived and was installed on Monday, just before Hurricane Milton struck Wednesday night. After a1/2 second test crank (which was fine), the battery was connected to a new LiFePo4 battery charger designed for this battery chemistry. The charger itself may be suspect, as the battery would not accept a charge. The charger displayed a fault mode after a few hours. I then connected it to a known good charger. After a charge of several hours at 2amps, the charger had to be disconnected as we prepped for the storm. A quick check on Tuesday (the next day) found that the generator would not start. Did not have time to do diagnostics with the storm coming. Had to pull-start the generator after we lost power Wednesday evening. Did diagnostics today, Friday 10/11. No problem with the starter motor, as it started immediately with my portable jumper pack. The Nermark battery showed less than 10V on my DVM. Both chargers displayed a battery fault, and were unable to charge the battery above 10.3V. It's possible there was an issue with the built-in BMS (Battery Management System), but I don't know. It's getting returned once Whole Foods is open again. Original Review 10/7/2024 Very simple installation to remove the old sealed lead acid 12-18 battery and replace it with this one. I have been using LiFePo4 batteries in my RC aircraft for over 20 years and I'm glad that this battery is available to replace the typical unreliable lead acid battery that is used as a starter in portable equipment. I took the opportunity to install the terminal rings and cable for the appropriate 3 amp charger and even without completing the charge, did a quick test start on my generator. I hope it will last several years, as this generator is only used for hurricane emergencies. However, I have batteries of this chemistry that are over 20 years old and still hold 80% or more of their charge. I will report back and update this review in the event that there are any failures, or possibly great news to continue to report years from now. ... show more
Reviewed in the United States on October 7, 2024 by RCAddiction RCAddiction

  • battery replacement for backup power supply
Style: 12V 10Ah
So far so good. I’ve been using these batteries in some old backup power supplies and they’ve been performing nicely. The extra run time is great when summer heat causes rolling blackouts and gives me enough time to haul out a generator for the occasional winter outage.
Reviewed in the United States on October 30, 2024 by Allan

  • Works great until it dies
Style: 12V 10Ah-2PACK
Update: Bumped from 2 star to 4 stars since seller offered a refund for the batteries The batteries replaced my lead acid batteries perfectly and they did power my devices when the power was out. However, they died and stopped charging less than a year after putting them in. I purchased them in October 23 and they stopped working August 2024 ... show more
Reviewed in the United States on August 10, 2024 by Abhi

  • Great Customer Service
Style: 12V 10Ah-2PACK
Got these batteries 6 months ago and they worked very well in our kids ATV. they last a long time. for some reason, one battery stopped taking charge. Talked to the support team thru chat which was a bit hard to find with fault of amazon. but they responded fast and they helped right away!
Reviewed in the United States on November 21, 2024 by Racermp

  • More amp hours and lighter than traditional lead batteries
Style: 12V 10Ah-2PACK
I purchased these to replace old batteries in three of my Furman F1000-UPS systems. They came fully charged. These solid state alternative batteries have more amp hours than the original batteries (10Ah vs 6Ah) and their lifespan should be longer than the typical 2 years for UPS batteries. They're also a bit lighter than traditional lead acid batteris. So far I am very happy with them. ... show more
Reviewed in the United States on November 3, 2024 by flluke

  • Good portable LiFePo4 battery for POTA activations
Style: 12V 20Ah
Bought this LiFePo4 battery to do POTA activations. Very lightweight and can run several hours drawing ~20A and putting out 100W. Charges in about 3 hours. Good so far. I would only suggest slightly larger terminals.. connecting terminals from a radio or from my charger takes some careful effort due to these small screw terminals. Slightly larger terminals would make things better. ... show more
Reviewed in the United States on November 21, 2024 by Matthew Steger

  • Economical, Portable, 12V LiFePO4 Battery for Tire Air Inflator and Other Car Accessories
Style: 12V 20Ah
So far the battery has been excellent, powerful and very useful around the house for everyday uses and also during car trips. The only remaining question is how long the battery could perform like this. After about 6 month of uses, I will update this review to a five star or a three-star rating.
Reviewed in the United States on November 20, 2024 by Byung m. Na

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