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The Battery Tender® Quick Disconnect USB Adapter turns any SAE quick disconnect connection point into a USB charging port — delivering up to 3 Amps of USB charging output from the vehicle's 12V battery through the same connection used for Battery Tender® chargers
deep-cycle marine batteries
More battery capacity
Personal watercraft and small boats
and solar storage — is well underway
Power Tender® 10 Amp Multi-Chemistry 12V Battery Charger and Maintainer 3 AMP The Battery Tender® Quick DisconnectThe highest output charger in the standard Battery Tender lineup with full Multi Chemistry support for both lead acid and Lithium batteries. The Power Tender 10 Amp Multi Chemistry IP67 delivers 10 Amp charging for large battery banks, deep cycle marine batteries, and heavy duty automotive applications with IP67 full immersion waterproofing and ISM (Infinite Sequential Monitoring) precision that transitions from rapid charging to indefinite float