GC100-12A programmed 4 auto stages (Ud-Im-Uo-Up) charging process，It is designed for all kinds of 12V lead-acid battery, such as SLA, AGM and Gel battery.
> Stage "Ud" desulfurating the battery through 18V pulse (for 12V battery), When the battery recovered,
> stage "Im" will give bulk current charging. Then,
> "Uo" stage is followed, the output voltage is limited on 14.7V( for 12V battery);
>When the battery is nearly full, stage"Up" will turn on duty. At this stage, the battery is charged completely and the charger give some pulse to maintenance the battery.
Further, It can display the charging process, indicate the battery capacity from 25% to 100% timely. This is helpful for user.
For more safety, It will inter protection mode when the battery polarity reversed or the output connectors shorted.
