HOW DOES THE B-200 WORK?
As explained above, a battery loses its capacity as its plates gradually become coated and/or damaged. The model B-200 determines the condition of the battery by electronically measuring the degree of plate loss caused by this process. Using less than 1 amp from the battery, the circuitry then computes, and displays the value of “load volts” for a load drawing 200 to 300 amps. Both the electronic B-200 test method and the older carbon pile method result in basically the same readings on a fully charged battery at 800F. However, the B-200’s readings are independent of temperature and a nearly fully charged battery is not required to properly test the battery.