3M Charging station TR644E for 4 batteries simultaneous

The TR-644E charging station will charge TR-630 standard battery or TR-632 high capacity battery in less than 4 hours.
The TR-644E charging station can charge 4 batteries simultaneously.
Batteries can be stored on the charger, fully charged, ready for immediate use.
Switch to trickle charge when the battery is charged and leave the charger connected.