B-1
©2002 Xantrex Technology Inc. All Rights Reserved.
P/N 975-0049-01-01 Rev A 10/2002
Appendix B - Battery Information
Batteries are available in different sizes, amp-hour
ratings, voltage, liquid or gel, vented or non-vented,
chemistries, etc. They are also available for starting
applications (such as an automobile starting battery) and
deep discharge applications. Only the deep discharge
types are recommended for inverter applications.
Choose the batteries best suited for the inverter
installation and cost. Use only the same battery type for
all batteries in the bank. For best performance, all
batteries should be from the same lot and date. This
information is usually printed on a label located on the
battery.
Selection of a Battery Type
There are two principal types of batteries: starting and
deep-cycle (with several different types of chemistries).
Batteries can be either sealed or non-sealed (vented).
The battery types recommended for use with this unit
are: Flooded Lead Acid (FLA), Sealed Gel Cells (GEL), or
Sealed Absorbed Glass Mat (AGM). DO NOT use
automotive (starting) batteries–they are designed to
provide high starting current for short periods of time.
Flooded Lead Acid (FLA)
This type of battery is designed to be deep cycled before
being recharged, making it suitable for inverter
applications. Flooded batteries require periodic
maintenance consisting mainly of adding distilled water
to the cells, checking battery cable connectors for
tightness and keeping the terminals clean. Examples of
flooded batteries include:
RV and Marine
• Popular in small systems
• Often referred to as “Group 24” or “Group 27” batteries
• Designed for limited cycling
• Do not last as long as the other “true” deep cycle
batteries
• Typically rated at 12 volts (80 to 100 amp hours)
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