• BULK - constant current charging;
  • ABSORB - constant voltage charging;
  • MAINTAIN - (charge completed) float charging for long term maintenance.

Temperature regulated charging - An ambient temperature sensor plugs in at the rear of the housing to vary the output voltage parameters by -4mV /C (-2.2MV /'F) per cell away from the 20 C norm. Unplugging this sensor sets the voltage parameters to the default (20C) settings.

The standard ambient temperature sensor can be replaced by an optional plug-in 2M (6' 6") long external temperature probe for taping on to the battery casing for more accurate automatic charging voltage management.

 

Classic 3-stage <> charging algorithm (24V values)

  • Constant current "bulk" charge until the voltage has risen to 14.4V (28.8V) at 20'C.
  • 14.4V (28.8V) absorption stage until the charge current falls to 0,17 x full charge current.
  • Maintenance / Float mode voltage limited at 13.7V (27.4V). Should the battery being maintained at any stage require current exceeding 0.17 x full charge current, the program reverts to the absorption stage. The battery can then draw current as required until this again reduces to 0.17 x full charge current, whereupon the float mode will again engage.

Spec / Battery Size Comparison

AccuMate

AccuMate Pro 12V

AccuMate Pro 12/24

AccuMate Pro-5

Output Voltage

6V; 12V

12V

12V; 24V

5 x 12V

Constant current charge rate main stage; 6V battery

1.2A

 

 

 

Constant current charge rate main stage; 12V battery

1.2A

4.0A

7.0A

5 x 1.8A

Constant current charge rate main stage; 24V battery

 

 

3.5A

 

Minimum 12V battery size recommended (24V in brackets)

4Ah

13Ah

17Ah (9Ah)

5Ah

Maximum 12V battery size recommended (24V in brackets)

75Ah

225Ah

300Ah (150Ah)

110Ah