Instructions / Assembly
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Document Version 20190316 
©Copyright 2019, Grape Solar, Inc. All Rights Reserved 
GS-540-KIT PHOTOVOLTAIC  
POWER GENERATION SYSTEM 
QUICK CONNECT GUIDE Rev. 190316 
4 
Branch connector sets  are typically clipped 
together when shipped. Unclip the branch 
connectors until there are 4 separate units. 
Connect one branch connector  with the 
“female” output to the “male” end of a 15-ft. 
MC4 cable . Connect an additional “female” 
output branch connector  to the attached 
branch connector. 
With the other 15-ft MC4 cable , connect one 
branch connector  with the “male” output to the 
“female” end of the cable. Connect an additional 
“male” output branch connector  to the attached 
branch connector.  
Now, attach an in-line fuse  to each of the “female” 
inputs.  
5 
Mount the 180-watt solar panels  so that they are facing due South at approximately the same angle as your 
latitude. The ideal area has full sun and no shading. If the following connections are made during daylight, cover 
the panels with cardboard, cloth, or a similar opaque material so that the panel does not output power. 
Connect the bare wire end of the 10 AWG (thinner) red 
battery cable  to the (+) battery terminal on the bottom 
of the Comet40 charge controller . Connect the bare 
wire end of the 10 AWG (thinner) black cable  to the 
(-) battery terminal. A Phillips head screwdriver can be 
used to loosen and tighten the screw clamps onto the 
wires.  
Attach the ring lug end of the red cable  to the positive 
terminal of a 12V deep cycle battery. Attach the ring lug 
end of the black cables  to the negative terminal of the 
battery.  
The charge controller  display screen will be visible if 
the battery has sufficient charge. If the display screen is 
not visible, the battery must be charged from an another 
source before processing solar power. The charge con-
troller, which regulates solar power flow to the battery, is 
powered by the battery.  
2 
3 
  
 
*12V deep cycle battery  
 is not included with kit 
 
 
 
 
 
 
input side 
output side 
 
 
 




