The CD44 battery tester contains the electronics of the CH195 Cycling Charger with additional
circuitry to allow the battery to be discharged under a constant current load, and the removed
capacity to be logged and displayed on the 4-digit display on the front panel.

These units are intended as a workshop/maintenance item, and we sell them mainly for
treatment of 30V tripping batteries and battery packs used for Film & TV lighting work.

The standard size unit goes up to 30 Cell 10AH batteries, the standard unit
voltage and capacity for switch tripping batteries is 25 Cell 4AH or 7AH.
The unit is entirely automatic in operation once started on a cycle.

The picture shows the exterior of a typical unit. These are configured for
use with a specific battery type, and can only be used on that type and
voltage battery. Cycle time is about 21 hours for a fully charged battery pack,
if the pack is flat then about 5 hours can be deducted from that total.