Review on Ultra-Smart 12V/5A Car Battery Charger: 7-Stage Fully-Automatic Maintenance & Desulfation, Waterproof IP65 - Perfect for AGM, SLA, Gel-Cell Batteries & More by Mike Quade

Suuwer offers three chargers on Revain. I bought and used all three. The 6V/12V 1.25A model charges and maintains a 6V battery in the trimmer. The 12V 2.0A model uses a car battery. And the 12V 5A model supports three AGM batteries for use during a power outage. All three chargers work well and will hopefully continue to work. I think they are all worth their money.