Xantrex Technology RS2000 Charging Algorithms Formulas, Charge Algorithm Stages, Battery Type

Battery Charging Reference

Charging Algorithms (Formulas)

Battery Type

	RS2000 charges flooded (or wet) lead-acid, gel, AGM (absorbed glass
	mat), and custom batteries.
Flooded (or wet)	Flooded (or wet) batteries have removable battery caps for refilling with
	distilled water and testing the electrolyte.
Gel	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	AGM (absorbed glass mat) batteries are similar to gel batteries except that
	the electrolyte is absorbed into a fiberglass matting.
Custom	Custom is configured by the dealer, factory, or service center for battery
	types other than those listed above.

WARNING: Risk of battery damage

Since the RS2000 has only one battery type setting for all batteries connected to its bank, do not mix battery types. All connected batteries should be of one kind: Flooded (or wet) or Gel or AGM or Custom.

Charge Algorithm Stages

Three-stage charging

If three-stage charging is enabled, the RS2000 will charge batteries in a sequence known as three-stage charging. The charging voltage delivered to the battery depends on the battery:

•type setting

•temperature (by switch setting or battery temperature sensor)

•state of charge

The three automatic stages are:

•bulk

•absorption

•float

See Figure B-1for a graph of the three-stage charging profile.

B–2 975-0125-01-01