Amazon.com: Type S | Automatic Car Battery Charger with LCD Display, 5A Battery Charger Battery Maintainer for 6V DC / 12V DC Pulse Charge Auto-Voltage Detection Smart Battery Maintenance Trickle Charger :
TYPE S 1A Battery Charger and Maintainer
2A 6V/12V Automatic Battery Charger/Maintainer - Schumacher Electric
VECTOR 1.5 Amp Battery Charger, Battery Maintainer, Trickle Charger, 6V and 12V, Fully Automatic BM315V - The Home Depot
Schumacher 1.5A 6V/12V Fully Automatic Battery Charger and Maintainer | Cabela's
LotFancy 3Pcs 6V 12V 1.5A Battery Charger Maintainer Trickle for Car Motorcycle, Automatic - Walmart.com