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12. Battery (AC or Solar
Charged) will not
stay charged
1. The most common reason for this type of problem is a bad battery.
It is highly recommended that the battery be load tested at a battery
store to verify that it is good. The load test is the only sure way to
know if we have a good battery.
2. If the battery load test good then other items need to be checked
such as system design, installation or possible charging problems
with the battery controller.
System design and Installation
1. Verify the solar panel is facing in a South to Southwest direction and
that the panel surface is not shaded by some object.
2. System design refers to the accessories connected to the system.
Accessories connected to the system cannot use more energy than
the charging system can provide. Not all accessories are created
equally and some manufacturers use much more energy than others
to perform the same function. These concerns are minimized in an
AC charged system where the charger has power connected to it
continually.
3. If the 120 VAC power checks good then disconnect the DC adaptor
from the battery controller. Using a volt meter check the transformer
output. The transformer should read about 20 vdc, if the transformer
output is incorrect the transformer needs to be replaced with
USAutomatic part # 520009.
Solar Charged Systems ONLY
1. Remove the solar panel plug from the battery controller input and
measure the DC voltage from the solar panel. It typically should be
about 19 to 22 VDC. This reading must be taken when the sky is
clear and the sun is up directly on the panel.
NOTE: This reading does not guarantee the solar panel is outputting
the correct current to keep the battery charged, but it is a good
rst check.
13. Wiring harness 20
amp fuse blows
when harness is
connected to the
battery
1. Possible short in the wiring harness.
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