Battery Tender® 12V / 6V Battery Tester Marine 40 Amps Total

40 Amps Total

The 12V AC

All hardware is stainless steel throughout — no zinc or plated steel that will corrode in saltwater conditions

irreversible hardening of lead sulfate on battery plates — is the leading cause of premature battery failure across all lead-acid chemistries

The Battery Tender® Quick Disconnect USB-C Charger Adapter turns any SAE quick disconnect connection point into a USB-C charging port — delivering up to 3 Amps of USB-C charging output from the vehicle's 12V battery through the same SAE connection used for Battery Tender® chargers

Battery Tender® 12V / 6V Battery Tester Marine 40 Amps TotalThe Battery Tender 12V 6V Battery Tester is the fastest way to assess battery health before a storage season, after a long discharge, or when a battery is not holding charge as expected. Designed for both 12V and 6V lead acid batteries, it provides an immediate read of battery voltage and charge state no multimeter knowledge required, no complex settings, no waiting. Who It's For Any vehicle owner who maintains a battery dependent fleet multiple