Batteries for battery backup for
your alternative energy solutions
The batteries used in
solar and wind systems for battery backup are rated for deep-cycle
applications and are
not designed to start engines. .The internal construction of automotive batteries and most marine batteries requires the battery to provide very high current flow for a very short amount of time To meet that requirement, these batteries are constructed with many thin, lead plates
The thickness of the lead plate is a direct indicator of potential battery life in deep-cycle applications When a battery is cycled deeply, 30% to 80%
emptied, the lead plates undergo significant mechanical stress The thin automotive-type plates do not have the structural integrity
to withstand repeated deep cycling and therefore quickly fail.
There are two types of deep cycle batteries that we offer for battery backup. Valve Regulated Lead Acid (VRLA) and Flooded Lead Acid (FLA)
VRLA technology includes non-spillable gelled electrolyte and absorbed glass mat (AGM) batteries A gel battery uses an electrolyteconsisting of a silica gel/acid mixture In an AGM battery, the electrolyte is absorbed in separators of matted glass fibers VRLA
batteries are less susceptible to freezing than FLA batteries and carry a non-hazardous classification FLA batteries are filled with a
water/sulfuric acid electrolyte and are better for large applications such as remote homes where greater currents are required
The amount of energy a battery is able to store is finite and is expressed in amp hours A dealer will consider the following information
when sizing a battery bank for your off grid battery backup application:
Total Load - how much electricity is required
Peak Load - the largest combined amount of electricity required
Autonomy - number of days the batteries will support the load without being recharged
Depth of Discharge – the level the battery will be discharged
Temperature Derating – the highest and lowest expected ambient temperature.
We will then determine which battery and how many are needed for your system.
