Tested: Optimate III motorcycle battery charger review

BikeSocial’s very long-term test of the leading battery maintainer

TecMate OptiMate 3+ Battery Charger

OptiMate 4 Quad Program CAN-BUS Battery Charger w/BMW Adapter

EarthX (TM-291) 13.2V, 5amp, OPTIMATE BATTERY CHARGER/MAINTAINER

The TecMate Optimate 4 features a weatherproof enclosure with built-in wall mounts, improved energy efficiency and cables good down to -40 degrees, the OptiMate 4 DUAL PROGRAM is ideally suited to all powersport vehicles especially those used on water and in the cold. Tested, proven and endorsed by numerous power sport vehicle OEs and users world-wide. Recommended for STD (with removable filler caps), sealed AGM (absorbed glass mat) & sealed GEL 12V lead-acid batteries up to 50Ah.

Optimate 4 CAN-Bus Motorcycle Battery Charger with BMW Plug

OptiMate 3, the all-in-one tool for 12V battery care at home. Diagnoses, recovers, charges, tests and optimally maintains, automatically. The latest version of OptiMate 3 retains all easy-to-use characteristics of the over 2 million OptiMates produced since 1995, but is now lighter and more efficient than ever. The OptiMate 3 recovers sulphated batteries and then tests after charging. The maintenance program delivers only what the battery needs, never overcharges, never undercharges.

Optimate 3 Battery Charger / Maintainer

Power up: Best motorcycle battery chargers, tested 2023

TecMate Optimate 2 DUO Multi-Bike Battery Maintainer Review - ADV

Automatic Battery Charger, A9930220

Antigravity Optimate Lithium Battery Charger

Get an accurate diagnosis bring it back to life and maintain those optimal levels with the CTEK Mus 4.3 Polar Charger. This charger doesn't fear the cold and neither should you. Designed to operate in as low as -22 degrees the CTEK Polar charger kicks into Snowflakemode and lives up to its name and your battery lives on. This charger not only brings batteries back from the dead but it also powers extends restores and maintains all lead-acid batteries.