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12V 100Ah LiFePO4 Lithium Battery with Bluetooth, BCI Group 24, 12V Mini Battery 100A Smart BMS, Support Monitoring Battery via Phone Bluetooth, 15000 deep Cycles, Marine Trolling Motor RV

169.99

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12V 100Ah LiFePO4 Lithium Battery with Bluetooth, BCI Group 24, 12V Mini Battery 100A Smart BMS, Support Monitoring Battery via Phone Bluetooth, 15000 deep Cycles, Marine Trolling Motor RV

4.6

300+ bought in past month

Highest ranking 17

10 comments

$169.99

Save 32%

Other platform prices

· 🍃-Small Size, Large Capacity: The mini Wattcycle 12V 100Ah LiFePO4 Lithium Battery offers an 11% weight reduction and a 39% volume reduction compared to the excellent first-generation, while its energy density has increased to an impressive 63wh/lbs! A qualitative leap from traditional lead-acid batteries. · 🍃-More Compact: Weighing only 20.94lbs and measuring 9*5.4*8.2 inches, this means it's easier to carry. With the same battery storage space, you can accommodate more batteries, providing you with more power for your outings. · 🍃-Your Exclusive Bluetooth: After downloading the App, you can set the Bluetooth name yourself. Once connected, you can read the real-time status of the battery, such as voltage, charging/discharging current, alarm prompts, temperature parameters... This allows you to have a clear understanding of the health condition of your Lifepo4 battery and ensure its safe use. (Please note: Download WattCyle app. The display parameters have been updated. Please refer to the main picture for the display.) · 🍃-Grade A+ Cells: The EV Grade A+ cells in our 100Ah LiFePO4 battery ensure a lifespan of up to 10 years, withstand up to 15,000 cycles, and support a 4S4P configuration with a capacity of up to 20.48kWh. · 🍃-Low-Temperature Protection: The Wattcycle 12V 100Ah LiFePO4 battery operates in a wide temperature range (-4℉ to 158℉ / -20℃ to 70℃). It automatically shuts off at low temperatures, ensuring maximum battery protection and performance in diverse environments. · 🍃-BMS Protection: The built-in Battery Management System (BMS) safeguards the 12V 100Ah LiFePO4 battery against overcharge, deep discharge, overload, overheating, low temperatures, and short circuits. It monitors battery status, manages charging and discharging processes, and ensures battery efficiency through individual cell balancing. · 🍃-No Hassle Purchase: Our LiFePO4 batteries offer a 5-year assurance. For any product-related concerns or inquiries, please find us via the Amazon page and our support team directly through Amazon. Our dedicated technical team will respond within 24 hours. You can also reach us via our official email address for assistance.

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Reviews From
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DCReviewed in the United States on March 24, 2025

100 Ah mini Battery arrived in excellent physical condition, well packed and delivered one day earlier than expected. installed in my class C for a week now and replaced 2 Interstate gc 6v batteries which lasted for 8 years. Decided on WattCycle after watching the reviews on YouTube. So far impressed especially with the blue tooth. The real time soc is really nice along with the new Victron 100/30 smart solar charger. Much more info than I’ve ever had. Love it. No issues on the batteries blue tooth, comes up quickly. Struggled to lift the 60# lead acid batteries but the 22# lithium made me smile. While the single lithium should give me just a little less capacity than the 2 6v, it’s amazing that the 100ah lithium is equivalent. At $179 it was less expensive than the 2 6v flooded lead acid.

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Amazon CustomerReviewed in the United States on February 14, 2025

First off, the batteries themselves are fantastic so far. Have had two in use for over three months and just picked up two more. Not an issue to speak of other than the following. The reasoning for three stars is the app or apps not working at all. The main, original app to connect to and monitor the batteries was BMS Meta. I am using the Android based app and it no longer functions since the latest update. It is unable to get past the new permissions setup process, which by the way appears to need access to virtually everything you do on your phone. The BMS Meta app was functioning in an acceptable manner in the previous versions. It was very simplistic and basically a status display screen for your batteries, which for my use case was just fine. Better than not working at all. Watt Cycle themselves appear to have started or progressed development on their own in-house battery management app and it is available as "WattCycle by ShenZhen Wattcycle Power Co., Ltd" It actually works pretty well with finding any batteries within Bluetooth range and having far more settings available to configure and adjust. I am unable to comment as to whether all the settings function properly when being used due to not being able to properly test. The one big issue is the individual batteries are very random whether they will connect with the app or not. This Watt Cycle branded app seems to still be in development, so I am hopeful it will improve drastically in the coming months. At least becoming a bit more stable and consistent would be a plus. When either one of the apps functions properly, the overall battery and app combination gets five stars all day. Without a functioning app, you are left with a dumb battery and no way to monitor power levels and other stats unless you buy an additional shunt or battery monitor. So please be aware you may not always be able to access power level info readily at this point. Thanks for reading and best wishes with your power storage journey. Update: WattCycle reached out unsolicited and offered an acceptable solution to the matter. Fast and unexpected resolution was very much appreciated. Good on WattCycle for taking care of their customers. Five stars for the physical batteries and product support.

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Brian PReviewed in the United States on January 26, 2025

I have been waiting for years to pull the trigger and switch from AGM to LifePo4. I finally did it after reading reviews about WattCycle, particularly from YouTube Will Prowse who highly commended this battery's quality and build. The added benefit of the cost pushed me to try this battery. My battery arrived and it was not working and only had about 3 volts when I tested it with my multimeter. I was concerned that I just ordered a brick and this will end up costing me much more in the end. I contacted WattCycle customer support and they responded right away. After a couple emails and pictures of my problem they told me they will send out a new battery to replace the one I originally bought at no cost to me. The new battery arrived and everything worked as it should have. This company not only builds a quality product, but stands behind it also. I'm very impressed with their customer service and desire to take care of their customers. These batteries do what they say and have all the features you want and need from Bluetooth capabilities and even low temperature cut off which many budget batteries don't have or don't work. I highly recommend WattCycle batteries, you won't be disappointed.

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2013 RZR 800sReviewed in the United States on March 24, 2025

Works great great buy. Only I would like to see is better bluetooth connection. Everything u walk away out of bluetooth range. It forgets and don't have auto reconnect. Besides that it is great so far.

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sdgljdf533Reviewed in the United States on April 8, 2025

Really impressed with this battery. I love the Bluetooth capability and actually use it over my solar charge controller app. The temperature sensor is great and shows roughly what the battery state is doing Of course the app itself could use some improvement, but it gives me the data I’m looking for.

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Scott Y from AtlantaReviewed in the United States on November 9, 2024

I bought this battery for my 2022 Cougar 22RBS camper. I have wanted to switch over to a LiFePO4 battery, and this one seems to fit the bill. Works great, compact size, complete with BMS bluetooth app for monitoring the state of charge of the battery. The app lets you know the current in and out of the battery and any warnings. The BMS does have an automatic balancing function when the battery is fully charged. This will keep the battery cells balanced and ensure maximum capacity with the battery over time. I would buy this battery again in the future.

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Al SmithReviewed in the United States on March 24, 2025

Good packaging. Works great. I now have 5 batteries and working towards 8 in the next few months! Good hardware package also.

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J. KnechtReviewed in the United States on February 9, 2025

Awesome product. App works great and allows you to shut off charging or discharging remotely (within blue tooth range) using your phone. I ran a portable a/c unit drawing >100 amps ac for about an hour and the battery was barely warm to touch. Default over-current limit is set at 220 amps for 6 seconds before tripping so it should start quite a few motors. 888888 is password to change settings.

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richard labbeReviewed in Canada on March 24, 2025

quite well packaged for transport, loaded wattcycle app for android before the package arrived , took a little time to connect the app to the batteries, there was a warning : low temp protection activated showed battery temps lower than threshold stated in the manual ( temps was -26C during night for last portion of transport ) did verify that it didn't want to charge with thw correct lifepo4 10 amps charger perfect did start to charge at the correct temp stated in the manual; hope to be able to buy the sames mini BT 100A soon if these become available -

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RoblindaleReviewed in Canada on March 24, 2025

Going from lead acid to lithium, huge weight difference. The Bluetooth works really well. Cell 3 did an over voltage shut off while charging. After charging cell 3 came back online and all cells balalnced out. Looking forward to get on the water and give it a try. Hopefully cell 3 will be OK after a few cycles.