Revised Mar 2005

AccuMate Pro – additional information.

			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 (20°C) 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 12V 7A-S	AccuMate Pro-5
Output Voltage	6V; 12V	12V	12V; 24V	12V	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	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)	12Ah	5Ah
Maximum 12V battery size recommended (24V in brackets)	75Ah	225Ah	300Ah (150Ah)	300Ah	105Ah