Forum Discussion
RoyB
Jun 27, 2018Explorer II
Check the local autoparts places... I saw one for laying in the windshield area just last week for around $50.
I have a ZAMP ZS-M-10 10 WATT panel that lays in my windshield area but in high SUN I only see around 1/2 AMP charge coming from it. This is purely just for maintaining a trickle charge going to the start battery. Takes a long time to see anything over 12.3-4VDC in my truck sitting all day in the sun. I have no idea what the normal parasitic drain is in my truck... I did nurse a failing battery for a season having it plugged into an always hot 12V socket... This Dimensions is 17.5" x 7.5" x 1"

Google Image
I think one would need at least a 40WATT panel to count on any useful charging of the start battery...
just my thoughts...
Roy Ken

I have a ZAMP ZS-M-10 10 WATT panel that lays in my windshield area but in high SUN I only see around 1/2 AMP charge coming from it. This is purely just for maintaining a trickle charge going to the start battery. Takes a long time to see anything over 12.3-4VDC in my truck sitting all day in the sun. I have no idea what the normal parasitic drain is in my truck... I did nurse a failing battery for a season having it plugged into an always hot 12V socket... This Dimensions is 17.5" x 7.5" x 1"

Google Image
I think one would need at least a 40WATT panel to count on any useful charging of the start battery...
just my thoughts...
Roy Ken

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