The Battery Tender® 5 AMP charger is your go-to for quick maintenance and recharging. Fully automatic and easy to use, this charger uses a four-step charging process: initialization, bulk, absorption, and float. Once your battery is fully charged, this 5 AMP switches to float mode to prevent overcharging. Use our 5 AMP charger with lithium and lead-acid batteries, including flooded or sealed maintenance-free batteries such as AGm and Gel Cell.