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Model:
MPPT12-1
Unit 2, 110 Station Road, Seven Hills ,NSW, 2147, Australia
200W Solar Charger
Maximum Power Point Tracker
Operating Instructions
Please read these instructions before use
MPPT FAQs
Q: What is an MPPT?
MPPT stands for Maximum Power Point Tracker and is a specialized converter designed to
maintain the PV voltage at the level in which it delivers maximum power to the load or battery.
The nominal panel output power can only be ensured with the use of an MPPT.
Q: What are the GSL MPPTs advantages compared to standard solar regulators?
1.
Suitable for new lower cost high efficiency grid type panels since the GSL MPPT can efficiently
charge the batteries from relatively high voltage, say 12V batteries from 36V MPP panels.
2.
Less interference and more accurate voltages during absorption and float.
Q: What output can I expect from a 150W or 200W MPPT?
1.
The maximum bulk charge current with 12V battery and 150W panel is approximately 12A, so
you can expect about 40AH per day which is a 40W load for about 10 hours.
2.
The maximum bulk charge current with a 24V battery and a 200W panel is about 8A so you
can expect about 30AH which is a 40W load for about 15 hours.
Q: Why are MPPT used mainly in high power systems?
Until now and despite their overwhelming advantages MPPTs have been excluded from low
power systems because of cost. The new GSL MPPT specifically designed for low power makes
economic sense even in small systems.
Q: What sort of batteries should I use?
1.
A deep cycle battery is a must due to the cyclical nature of the solar system with a
• The MPPT12-1 will efficiently charge 12V batteries from 24V panels.
• The panel voltage limits for the MPPT12-1 are: Maximum open circuit voltage below 55V.
• Minimum Maximum Power Point ( at the maximum operating temperature) must be above 17V
for 12V batteries and 32V for 24V batteries to ensure full power.
• When used with panels over 150W @ 12V or 200W @ 24V the MPPT12-1 MUST be fitted
with the PVF fuse.
For optimal power output the following panel combinations are recomended:-
12V Charging
• 2 x 12V Battery Panels connected in series (Total V
OC
=42V & V
MP
=32V)
• 1 x 24V Battery Panel (Total V
OC
=42V & V
MP
=32V)
• 1 x 48 Cell Grid Panel (Total V
OC
=28V & V
MP
=23V)
• 1 x 54 Cell Grid Panel (Total V
OC
=32V & V
MP
=26V)
• 1 x 52 Cell Grid Panel (Total V
OC
=31V & V
MP
=25V)
• 1 x 60 Cell Grid Panel (Total V
OC
=36V & V
MP
=29V)
• 1 x 72 Cell Grid Panel (Total V
OC
=44V & V
MP
=36V)
24V Charging
• 1 x 72 Cell Grid Panel (Total V
OC
=44V & V
MP
=36V)
MPPT12-1-R5
