Optimate1 duo Beanie This multifunctional tunnel is seamless

This multifunctional tunnel is seamless and can be worn in many ways such as balaclava

so it doesn‰۪t rely solely on the bike‰۪s own battery for power

3-year limited replacement warranty

Heat dispersion

Fits: > One size fits most

Optimate1 duo Beanie This multifunctional tunnel is seamlessOptiMate 1 Duo features precise microprocessor controlled charging and long term maintenance. Maintain any type of 12 volt lead acid battery, filler cap wet cell, sealed AGM (MF) or GEL and 12. 8 13. 2V lithium (LiFePO4) batteries without overcharging. Ideal for vehicles that are seldom or seasonally used, or in storage. The OptiMate maintenance program delivers only what the battery needs, never overcharges, never undercharges. Cost effective 12V and