4 Charging Stations: Charge up to four 12 volt batteries at 10 AMPs simultaneously; automatically switches from full charge mode to float charge mode for optimal long-term battery health

Extend Battery Life: Compatible with all 12 volt flooded lead-acid, AGM, gel cell, and lithium batteries. 4-step charging algorithm optimizes battery life while preventing overcharging or discharging.

Includes: 12V 40 AMP 4 bank battery charger, four ring terminal cables, mounting hardware, a two-year manufacturer limited warranty, and lifetime customer support

Safety: IP68 and Marine UL ratings for weather, shock, and vibration resistance. Safety features including spark-proof, reverse charging warning, and ignition protection. Marine grade fused battery quick disconnects.

Long-Term Storage: Battery Tender onboard battery chargers are fully automatic and are designed for long term maintenance storage charging. Connect and forget technology.