Just bought online/Amazon, a new Schumacher 15 amp Charger/Maintainer for our boat batteries. Have a 12 amp one, but the green light doesn't come on automatically when battery fully charged. Have to unplug the unit and plug back in for the green (full-charge) light to come on. Have had this one for 5 1/2 years. Also, bought a set of Boundery Roadside LED Safety Flares. Seen these on Facebook. Battery operated and boy do they light up! Better than regular flares.