Battery Tender Junior 12V, 750mA Charger and Maintainer: Automatic 12V Powersports for Motorcycle, ATVs, and More - Smarter Than a Trickle Charger - 021-0123

Works great... I have 3 cars and only 2 chargers for now. I drive a reciprocal of what I drove before retirement. I don't want to ruin the batteries in my cars. Using a light on the module you'll be able to tell the condition of the battery. (Solid Red) Means everything is connected properly but the battery needs charging (it is below 75%) (Blinking Green) means the battery is above 75% but still charging (Solid Green) the battery is completely charged. The module has a circuit that samples the potential charge across the battery after it reaches full charge and will "condition" the battery going forward for months on in if you don't use the car. I don't plan on using my cars much at all, the road is all yours...

I've been using the Battery Tender Junior 12V, 750mA Charger and Maintainer (Model 021-0123) for a few months now, and it's hands down one of the best purchases I've made for my motorcycle. This little device is a powerhouse when it comes to keeping your battery healthy—smart, efficient, and reliable.What really stands out is how sturdy and well-built it is. Despite its compact size, it feels solid and durable in your hands—definitely not flimsy or cheaply made. I’ve used it through multiple weather conditions in my garage, and it hasn’t skipped a beat.Performance-wise, it's exactly what you want. It's smarter than a trickle charger, automatically switching to maintenance mode once the battery is fully charged. This gives you peace of mind knowing you can leave it connected without overcharging or damaging your battery.Best of all, it’s extremely affordable for what you get. There are pricier models out there, but they don’t offer anything significantly better than this. For motorcycles, ATVs, scooters, or even lawn tractors, it just works—no fuss, no gimmicks.Highly recommended for anyone who wants a reliable, budget-friendly, and tough battery maintainer!

I recently retired and don’t drive my car much but I do need it for errands . Sometimes I don’t drive it for a whole week and the way cars are now there’s always something running in the background taking a little bit of the battery. So this product you can hook up to your battery terminals plug it in and a trickle charges. The light goes from red to green and stays green. You’re good to go can let it go like that for a month great product.

I couldn’t be more thrilled with this charger. It’s an absolute lifesaver for anyone who owns motorcycles, ATVs, or other vehicles that require regular battery maintenance. Setting it up is a breeze, even if you’re not particularly tech-savvy. The design is compact and lightweight, making it easy to handle, store, or even take with you on the go. One feature I really appreciate is how it automatically switches to maintenance mode when the battery is fully charged. This gives me peace of mind, knowing my batteries are protected from overcharging, which can cause damage over time.I’ve used it multiple times already, and every single time, it’s performed flawlessly. My motorcycle battery used to struggle during colder months, but with this charger, it stays in top-notch condition and starts up like a dream. I also love how dependable it is—no sudden glitches or errors to worry about. It truly does what it’s supposed to do, and it does it exceptionally well. Honestly, it’s worth every penny and has saved me a lot of headaches.If you’re looking for a trustworthy, efficient, and easy-to-use charger, this is the one! It’s the kind of product that quickly becomes a must-have in your toolkit. I wouldn’t hesitate to recommend it to anyone in need of a reliable solution for battery care.

Very good product

Excellent battery maintainer/charger for the shop. Hooked it up to the lawn tractor and it works as advertised. I have another Battery Tender for the motorcycles in the garage that I've used for decades and it works great. Battery Tenders are top quality and have extended the life of my motorcycle batteries. Product shipped promptly.