Tecmate OptiMate Duo Battery Charger Maintainer

The Tecmate OptiMate Duo line of battery chargers and maintainers (also called battery tenders) keeps motorcycle, powersport, marine, RV and other 12V batteries charged and ready. These fully automatic, fully sealed units work with both 12V lead-acid batteries (STD, AGM and GEL) and 12.8V/13.2V lithium (LiFePO4/LFP) batteries.

Key Features:

• Adaptive charge program detects the battery type and condition and adjusts the charge to match
• Charges and maintains lead-acid (STD, AGM, GEL) and lithium (LiFePO4/LFP) batteries
• Can recover deeply discharged batteries with a low-voltage start
• Tests the battery and warns if damage is detected
• Safe to leave connected for long-term maintenance, with protection against overcharging
• Sparks are suppressed, and the unit shuts down automatically if it is short-circuited or the battery is disconnected
• Safe for vehicle electronics
• Energy-saving design with low stand-by power draw
• Weatherproof, sealed case for garage, shed or workshop use

Connect it to the battery and the charger runs the charge and maintenance cycle without supervision. That helps extend battery life and avoids dead batteries after storage. Choose the model in the OptiMate Duo range that suits your battery size and the number of batteries you need to service.