Check the listing for details. Optimate 5 Start/Stop 12v 4A TM220 Motorcycle Optimiser Charger. Condition: New, Made in China. Listed at 206.68 USD. Forgot your battery throughout the winter? OptiMate 5 will recover it from deep discharge and optimally recharge it. Then it will check that the charge delivered is the best possible before checking how well the battery can retain the charge and tell you its status, at a glance. Of course, it will then maintain your battery at full charge safely for months at a time, prolonging its life by up to 400%. Diagnoses, recovers, charges, checks & maintains your battery automatically for months. All major battery manufacturers recommend maintaining batteries FULLY CHARGED during periods of non-use. OptiMate 5 is totally safe for months-long connection and maintenance of batteries even while still connected to the vehicle. The sophisticated charging algorithm ensures no risk of over-charging. Suita.