Freedom SW 3K2K InvChg Owners Guide.book Page 58 Wednesday, October 9, 2013 1:34 PM
Battery Charging Reference
This section describes the multistage charging algorithm (formula) of the Freedom SW.
Battery Types
Freedom SW charges flooded (or wet)
•Flooded (or wet) batteries have removable battery caps for refilling with distilled water and testing the electrolyte.
•Gel batteries have the electrolyte in the form of a gel rather than a liquid and do not require topping up. Gel batteries are sealed and the battery caps are not removable.
•AGM (Absorbed Glass Mat) batteries are similar to gel batteries except that the electrolyte is absorbed into a fiberglass matting.
•Custom battery is configured by the dealer, factory, or service center for battery types other than those listed above.
Charge Algorithm Stages
Three-Stage charging
If
•type setting
•temperature (by switch setting or battery temperature sensor)
•state of charge
The three automatic stages are:
•bulk
•absorption
•float
RISK OF BATTERY DAMAGE
Since the Freedom SW can only select one battery type setting for all batteries connected to its bank, do not mix battery types. All connected batteries should either be: Flooded (or wet) or Gel or AGM or Custom.
Failure to follow these instructions can damage the unit and/or damage other equipment.
See Figure 32 for a graph of the
There is a fourth stage, equalization, which is initialized manually as it is only performed occasionally and only on flooded (or wet) batteries.
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