NOCO Genius 1-Amp 12V Car Battery Charger

This charger is designed for 6-volt and 12-volt lead-acid batteries, including flooded, gel, AGM, and maintenance-free batteries. It features a thermal sensor that detects the ambient temperature to prevent overcharging in hot climates and undercharging in cold climates. The price drops from $39.95 to $23.96. Shipping is free for Prime members or on orders over $35.