Work perfectly as a slow charge then maintainers. Bought 9 so far for all my battery needs, vehicles and portable generators with batteries.
Pros
With the ability to work on both 6V and 12V batteries, this trickle charger is suitable for a variety of vehicles and machines. It's perfect for long-term maintenance of batteries in cars, motorcycles, boats, RVs, ATVs and more
Cons
May not be able to fully charge batteries in extreme weather conditions