Xantrex Technology 2000, 2500 owner manual Battery Interconnection, Series

BATTERIES

Beware of so-called maintenance- free batteries. These batteries have cal- cium alloyed with the lead and hold the liquid electrolyte in a sponge-like material. They are sealed and water cannot be added. Do no confuse them with true gel cell batteries, they will not hold up to deep discharging.

Gel Cell Batteries

Gel cell batteries are lead-acid batter- ies similar in many ways to the common wet cell battery, but differences in the chemistry and construction provide some unique features.

No Maintenance - There is no need to add water and the tops of the batteries stay clean. Also, the batteries can be used in any position and may be used without a battery box.

Low Self-Discharging - Unlike wet cell batteries, the gel cell will hold its charge for months if left sitting with no load and no float charge. They can be stored without a constant float charge and without fear of freezing.

Low Internal Resistance - The result of low internal resistance is a higher battery voltage under load, which will result in better inverter performance on demanding high power loads. In addition, this allows the gel cell to accept a high rate of charge, a plus for rapid recharging.

The features of the gel cell batteries solve many common problems. Cycle life is high, even under constant deep discharg- ing.

BATTERY INTERCONNECTION

In most cases you will be using a bank of two or more batteries with your inverter/ charger. You may connect batteries to- gether in two configurations, series and parallel.

Series

Connecting 2 batteries in series will double the voltage of the battery bank. For instance, two 6 Volt batteries connected in series will produce 12 Volts. The Amp-hour capacity of the battery bank will be the same as each individual battery. Example, two 6 Volt 220 Amp-hour batteries in series will produce on 12 Volt 220 Amp-hour bat- tery bank.

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90-0115-00 10/97 Fltman.pm65