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Discovery, Discovery LXE, Pace Arrow, and Pace Arrow LXE
BATTERIES - HOUSE
House batteries are designed
for use with 12 Volt DC operated
lights, appliances and inverter.
Type of House Batteries:
Absorbed Glass Mat
(AGM)
Deep Cycle Batteries:
Deep cycle batteries are best
suited for use with 12 Volt
operated lights, appliances and
inverter. Deep cycle batteries are
designed to have half of their
capacity discharged before being
recharged.
AGM Batteries
Absorbed Glass Mat (AGM)
batteries are sealed and require
no maintenance. Battery acid is
absorbed between the battery
plates and immobilized by a
berglass mat. This glass mat
absorbs and immobilizes the
acid while still keeping the acid
available to the plates. This allows
a fast reaction between acid and
plate material.
AGM batteries are more
resilient than LLA batteries, but
the life cycle capacity is also
reduced with each successive
severe discharge. AGM
batteries have a much lower
self-discharge rate and require
only 102% charge to get 100%
SOC. AGM batteries are sealed;
they do not require hydrometer
testing, nor do they loose water.
Voltage is the only way to test the
SOC of AGM batteries.
While an AGM battery requires
less maintenance, the cables must
still be checked for cleanliness and
the connections must be secure.
A sign that batteries are
questionable for continued service
is shortened discharge time.
Even one battery in a bank with a
shorted cell can quickly discharge
the whole battery bank while at
rest. Some batteries do not last as
long as they should because they
were never fully charged or have
been abused while in service.
Placing a load on the Battery:
Another test that can be
performed is to place a specic
load on the battery for a
predetermined length of time equal
to that particular battery’s rating.
This machine is usually an
adjustable carbon pile that can
vary the load being applied to the
batteries while monitoring voltage
to see if they will perform to their
specic rated capacities.
A
B
C
D
E
Quarter is used for size comparison of fuses.
080528e
A. Manual Reset Circuit Breaker
B. Auto Reset Circuit Breaker
C. Standard Fuse
D. Mini Fuse
E. Maxi Fuse
Representation of various fuses and a circuit breaker.
t
*Figures are from Concorde Battery Corp. (Lifeline).