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I needed an affordable large amp hour battery in a small package. The 12V 280Ah Wattcycle Mini was the right match. This battery went in to a tight fitting Airstream Basecamp 20X trailer battery space. I did not need to make any modifications. I installed it with no issue and put a fuse in place to protect the electrical system. On three-night winter trip in the Oregon Cascades and with temperatures well below freezing, the battery easily was up to all the tasks: propane heater fans, roof vent fan, lights, 12v fridge and device charging. (I am also happy about having low temperature protection for the battery). The 300w solar panels were shaded by clouds much of the time. Thankfully, on this batteries maiden voyage it performed perfectly. Having had battery power anxiety so many times when traveling, it was great to spend more time enjoying the adventure travel experience without sweating about the battery. My next battery related purchase with be the Wattcycle 60amp charger for those rare time I want to fast charge the Mini from an outlet. For now, I look forward to many, many years of service from the battery.
I’ve been very pleased with the product and would definitely recommend
Came packaged nicely no issues. Nice they included both bolt sizes if you have two cables on the terminals. Put two of them in my rv and have worked great so far. Would love to get a bigger charger. Maybe one day.
Accidentally put this in the 'shop' reviews...
Sorry.
It belongs here, in the product review section.
I have eight of these batteries, some purchased in October 2024, and the rest in November of 2024. The battery bank is connected as two in series for 24 volts, and the four strings of those in parallel for 400 amp hour via individual breakers.
They have all performed FLAWLESSLY up until about a month ago, when I started having trouble with the Bluetooth app after it was updated.
Now, seven of the eight work fine, but I can't get any data from the one battery. It shows up in the scan lists, says it has connected, but no information comes up on the app. I decided to check its voltage thinking that if the bluetooth didn't work right, and I could still just run it in the bank as if it was a battery without bluetooth and I'd monitor it with a voltmeter or use the Victron shunt isolated auxiliary voltage input that is designed to monitor other batteries at the same time as it 'watches' the main battery bank.
Grabbed the voltmeter and the voltage was way off.
The bluetooth app still 'sees' the battery and says it's connected, but no data posts on the app.
I've isolated it and tried charging it with a bench power supply, (set to multiple voltages from 12.8 up to 14.6 volts,) and it won't take a charge, nor will it source any current to a load. A high impedance voltmeter (20 Meg Ohm) shows 5.5 volts, but when any load is placed across the battery, the voltage drops to zero. (I use a 120v 250w incandescent bulb with clip leads to 'pre-charge' the inverter input caps before closing the battery breakers to avoid damaging circuit breaker contacts with the high inrush current,) and I placed it across the battery terminals. The voltage drops to zero.
So, something has gone sideways with not only the bluetooth, but the BMS apparently has a problem as well.
I'm waiting for instructions from Wattcycle on how to proceed, but with that battery down, I've now lost 1/4th of my battery bank capacity.
I purchased the WattCycle 12V 280Ah MINI LiFePO4 battery for my solar power system. It has significantly improved the efficiency of my setup. The battery provides steady and reliable power even on cloudy days. It's easy to install and manage, and I love how compact and lightweight it is compared to other lead-acid batteries I’ve used.
