Battery Tender 4.5 Amp Battery Charger & Maintainer

Selectable 4.5 AMP charging for 12V or 6V and lead-acid (AGM, flooded, or gel) or lithium (LiFePO4) batteries
Weather resistant IP65 rating
Safe for long-term storage
Spark-proof during lead connection, the charger automatically detects reverse polarity to ensure a correct, locked-in connection before providing power