Solar Charge Controller Questions Answers
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Solar Electric Charge Controller Questions & Answers
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TriStar TS-45 45 Amp Charge Controller
$138.78
XW MPPT60-150
Charge Controller
with Ground-Fault
$507.50
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Q, Can you tell me how do I know if my Solar Power Charge
Controller is working or not.
A, Solar chargers are state-of-the-art built and tested. If the LEDs
are on, then it is most probably working. To know for sure you must
use a DC multimeter. When the indicator light shows to be charging,
the controller has connected the solar module to the battery. The
voltage measured at the output terminals must be under 14.4 volts,
and the solar module at the input must be a little higher than the
battery voltage. Disconnect and reconnect the solar panel while
watchingt the voltage change.
Q, Can I connect more than one solar module to my charger?
A, Yes, you can connect more than one solar module as long as it is
in parallel (+ to + and - to -). The current from each module will
combine. The total sum of the solar power input voltage and amps
must not exceed the limits of your controller unit. Always read the
charger's instructions.

Q, Can more than one battery be connected at the controller
output?
A, Yes, as long as the batteries are connected in a voltage for which
the charge controller is made.

Q, Why does the controller have to be placed close to the
battery?
A, The shorter the cables the less voltage loss, By placing the
controller near the battery, you will reduce the cost of your system
by shorter cables. It is also recommended that you fuse any wire to
or from the batteries or charge controller. Always consult local
electrical codes.

Q, Can I test the charging unit by hooking up a solar panel
and reading the voltage at the battery terminals?
A, No. A battery will have to be connected to the circuit.

Q, Will the controller work with dead batteries?
A, If the battery is really dead you should replace it. The life of your
battery depends on how deep you discharge the batteries.

Q, Will the charge controllers discharge the battery at night?
A, No, Little power will feed back and would take months before a
noticeable discharge would be seen.
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