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WattCycle 12V 100Ah 1200CCA Marine Battery: Dual-Purpose Power for Boats & Cars
Welcome to the launch of our latest marine starting battery. In today's market, the demand for reliable power solutions is high, and our new battery—12V 100Ah 1200CCA dual purpose battery...
March 27, 2025
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New 12V 280Ah MINI BT: Smarter, Safer, and More Powerful Than Ever
The 12V 280Ah MINI LiFePO4 Battery has quickly become one of our most popular products, trusted by customers for its reliability, high energy density, and compact design. It's been a...
March 4, 2025
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280AH vs. 300AH Batteries What’s the Real Difference in Daily Use
At WattCycle, we’re committed to providing high-quality LiFePO4 batteries that offer reliable performance and long-lasting power. Recently, some confusion arose regarding the labeling of our 12V 280AH Mini lithium battery. Due...
February 14, 2025

Great Option for Travel Trailer

Bought this to replace the FLA battery on my travel trailer. So far, it's been pretty good. I added some foam pieces to my battery box to keep it from sliding around too much, since this battery is considerably smaller than the old battery.

Test run:
I haven't done any trips yet but so far, I've used it overnight to run the lights, 12V fridge and the fans for the heating system in 35-degree weather, and charge a few devices in the trailer as a test. It went from 91% down to just about 50% charge and the voltage was still around 13V the following morning. It also charged back up pretty nicely the next day to about 89%, even with fridge and some lights still running. (For reference, I have a 165W solar panel and it was a partially cloudy day with occasional tree shadows).

Bluetooth App:
The app is handy and I like that I can shut off charging and discharging. It would be nice to set charge and discharge limits as a percentage of remaining capacity, but you can do it based on voltage so not a huge deal.
Overall, I'm happy with it so far. I'm considering ordering a second one to expand my capacity.

Fantastic Battery

This is my second Wattcycle battery for my Ham Radio setups. Superb performance for both the 100ah and the 20ah. I have been very impressed with Wattcycle’s product, and their customer service, which has been very responsive.

Great product.

Disappointed with app and documentation

Before I purchased three 280ah mini smart batteries for my boat, I downloaded the app and read the app description and instructions. I was specifically waiting for a smart version so that I could monitor individual cell voltages to watch for imbalances and the app instructions stated and showed that individual cell voltages were monitored and displayed. When I received the batteries, opened the app, and connected to the batteries the only information displayed was the battery pack percentage of charge and battery pack temperature, not individual cells. This information brought no value to me as I already have a victron battery monitor to provide percentage of charge. When I contacted support they were unaware of what information the app provided and followed up with me after researching. I was unlimately told that the app will be updated but may take up to six months. Also, after the Will Prouse review of the 300/280ah mini, pointing out that the over-current discharge cut off was set dangerously high, I was glad to see on the website that the 280ah mini smart cut off was lowered to 210 amps. However, the manual supplied with the battery lists the over-current discharge protection for the 280ah mini smart as 750 +- 50 amps. What is the accurate number? What and who can I trust? Will the app be updated as promised? After the whole 300ah/280ah issue I wanted to give Watt Cycle the benefit of the doubt but now I'm concerned and contemplating returning the batteries, while I can, and looking for batteries with a useable app and proper documentation.

Never received it.

Never received it, will change my rating if and when I receive it.

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WattCycle 12V 100Ah 1200CCA Marine Battery: Dual-Purpose Power for Boats & Cars

New 12V 280Ah MINI BT: Smarter, Safer, and More Powerful Than Ever

280AH vs. 300AH Batteries What’s the Real Difference in Daily Use

Let customers speak for us