[e61it]

I plug my charger into cig lighter receptacle with key off, then turn on charger then turn key on and off. Charger stays active until unplugged. The ctek cig lighter charger has 3 colored lights to indicate status. Above directions lead to green light on charger plug.

 

[e61it]

Had to replace my battery when it wouldn't keep a charge (it was done under warranty)after close to three years of useage. Car would start ok but auto/stop start would not function. That was about a year ago and now use ctek at least once a week in summer and every other day in winter. All functions now work well.