TecMate OptiMate 4 Dual Program Battery Charger 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. Fully automatic operation that includes all safety features such as reverse polarity protection, no spark connection and is approved to UL CSA safety standards for automatic battery chargers. Features Program 1 (default setting on this model) desulfates, charges, tests and maintains the battery 10 second test at connection indicates your battery condition, a quick and easy ride meter that will determine if you are ready to go or will have to charge the battery first OptiMate 4s proven multi stage desulfation program saves neglected batteries (as low as 0.5V) other chargers can't Multi step program, that includes a unique cell voltage balancing step, guarantees the fastest and most complete charge OptiMate 4 will maintain your battery safe and ready-to-go for months on end, with the extremely effective charge and rest maintenance program Hourly battery condition tests monitors the battery and the current drain by the vehicle circuitry a problem is indicated on an easy to understand light display 10 second test at connection for a more hands on diagnosis of battery condition Specifications Safe for 12V lead-acid batteries AGM/MF, Standard, GEL batteries 2Ah to 75Ah rated capacity Fully automatic program control microprocessor with 6 stages Reverse drain current less than 0.5mA Output current (bulk charge 0.8A) Automatic desulfation 2 stages (recovery and Turbo-recovery) Charge time limit 48 hours (maintenance time unlimited) Maintain / test cycles 30 min/30 min (alternating hourly) Charge retention test 5 possible results from good to bad Size 8 x 3 x 2 inches (200 x 75 x 61 mm) Weight (packaging 2lbs (3 lbs) 0.9kg (1.3kg) Wall mounting easy direct wall mounting Input cable length 6ft (2m) Output cable length 6ft (2m) Operation temperature range From -40CF to 40C/104F 3 year warranty Includes SAE-71 weatherproof fused ringlet set SAE-74 clamps set for bench charging