The latest OptiMate 4 takes the proven OptiMate interactive charging programme even further – features include: * Automatic Self-Diagnostic Test: Immediately on connection, the microprocessor checks the circuit and flashes all LEDs to confirm correct operation. * Dual-Stage Recovery Action: If the diagnostic check determines the battery is sulphated (deep-discharged) the first recovery stage attempts to drive in an initial current by applying up to 16V for a brief limited period. If this is unsuccessful, the TURBO recovery stage engages (indicated by a flashing recovery LED), which increases the applied voltage to up to 22V. This action is limited to a maximum of two hours. * Charge Current Display: Central LED column display shows delivered current. This, together with the charge status information provides the user with a detailed insight regarding the state of charge and the state of health of the battery. * High Power: OptiMate 4 has a maximum output current of 0.8A. * High Efficiency: Despite delivering 33% more power than the OptiMate 3, OptiMate 4 consumes less electricity. * Microprocessor Control: Provides enhanced operation. * Improved Connectors: All weatherproof connectors now feature "glide-guide" inserts for easier connection. * Enhanced Battery Testing: 'Traffic-Light' LEDs indicate results of the end-of-programme test for power drain (whether in the battery or due to a problem in the bike´s electrical system). * IP64 Weatherproof Enclosure Supplied complete with two connection leads - one with croc-clips (TM-74) plus a fused connection lead with eyelet terminals (TM-71). Specification: * Input: 220 - 240V AC * Output Voltage: 12V DC * Max Output Current: 0.8A