Modding for a solar panel - Fuelly Forums

Android Users - Coming Soon! - Migrating from aCar 4.8 to 5.0

Reply
 
Thread Tools Display Modes
 
Old 04-29-2007, 09:15 AM   #1
Registered Member
 
Join Date: Apr 2007
Posts: 37
Country: United States
Modding for a solar panel

What's the best way to install a solar panel to trickle charge the battery? I have a couple of the 5w VW panels and would like to keep my batt topped up. I have both a OBDII outlet panel and a cigarette lighter outlet panel. My lighter though, is disconnected from the battery with the ignition off. Is there a way to rewire the lighter to always connected to the battery? Or is it better just to run wires straight to the battery? Can I use my OBDII panel in my Nissan even though the panel is made for a VW? I don't want to fry anything.

John David
__________________

__________________
jdham137 is offline   Reply With Quote
Old 04-29-2007, 09:32 AM   #2
Registered Member
 
Join Date: Oct 2006
Posts: 557
Country: United States
I believe the OBD II is also only powered with the ignition turned on. My generic scanner is powered by the OBD socket. The display doesn't come on until the ignition switch is turned on. It goes out as soon as the key is turned to off.
The VW lighter is fused to the battery so it remains "hot". The easiest way to duplicate this is to locate the lighter fuse for your Nissan and move the fuse's present power suppy from the "switched" side of the ignition switch to the "hot" side of the switch.
If you use the lighter socket for nothing else, not even cell phone charging, then wire it to a 1 amp fuse and the fuse to the battery. The 1 amp fuse will limit the current so a smaller gauge wire can safely be used, yet is sufficient for the maximum peak milliamp output of the solar panel. Use the full gauge wire and a 15 amp fuse if you still want full amperage capacity at the lighter socket.
__________________

Lug_Nut is offline   Reply With Quote
Old 04-29-2007, 10:14 AM   #3
*shrug*
 
Join Date: Sep 2005
Posts: 6,195
Country: United States
How'd you get your hands on those panels, good sir?
SVOboy is offline   Reply With Quote
Old 04-30-2007, 03:20 AM   #4
Registered Member
 
Join Date: Apr 2007
Posts: 37
Country: United States
Lug, thanks for the info. SVO, I went to a dealer and asked for one.

John
__________________
jdham137 is offline   Reply With Quote
Old 04-30-2007, 03:36 AM   #5
Registered Member
 
caprice's Avatar
 
Join Date: Feb 2007
Posts: 114
Country: United States
Quote:
Originally Posted by Lug_Nut View Post
I believe the OBD II is also only powered with the ignition turned on. My generic scanner is powered by the OBD socket. The display doesn't come on until the ignition switch is turned on. It goes out as soon as the key is turned to off.
In my experience, SG will auto shut off in several seconds of inactivity with ignition off. It will auto shut off for me with engine off coasting innuatral and igition on, even though the car is still moving... Perhaps on some cars, like lug_nut's it turns off.

There are many places you can find full time 12v to tap in that solar charge. I asume you're looking for one that would easily remove to look like the car was unmodified.
__________________
David
85 Chevrolet. 30 MPG or bust!
caprice is offline   Reply With Quote
Old 04-30-2007, 04:49 AM   #6
Registered Member
 
MetroMPG's Avatar
 
Join Date: Dec 2005
Posts: 4,223
Country: United States
Quote:
Originally Posted by caprice View Post
It will auto shut off for me with engine off coasting innuatral and igition on, even though the car is still moving...
Set your fuel type to "hybrid" and the SG will stay on as long as it detects the car is moving, through the VSS signal.

I think there is a live 12v pin (and ground) in the OBD2 port, regardless of key position.
MetroMPG is offline   Reply With Quote
Old 04-30-2007, 07:52 AM   #7
Registered Member
 
GasSavers_Ryland's Avatar
 
Join Date: Mar 2006
Posts: 1,325
Country: United States
Send a message via AIM to GasSavers_Ryland
wire it right to the battery, it will be more efficent, and simplyfy everything, why would you bother doing it any other way?
GasSavers_Ryland is offline   Reply With Quote
Old 04-30-2007, 06:18 PM   #8
Registered Member
 
Join Date: Oct 2006
Posts: 557
Country: United States
Quote:
Originally Posted by Ryland View Post
wire it right to the battery, it will be more efficent, and simplyfy everything, why would you bother doing it any other way?
Connecting to a unique socket (OBD II) means it is that much less likely that an electrical consumer might be inadvertently left connected and draining power as with a lighter socket.
Hot lighter sockets have disadvantages in that every consumer has to be unplugged or the battery will be drawn down.

Either way, don't "wire it right to the battery". Use a fuse on the + side of amperage suited to the load. Each VW panel puts out a max of 170 mA. That's about 1/6 of an amp. The direct wire (even a 15 amp lighter fuse is almost 'direct' when this mA amount is considered) method will almost assure that the individual solar cells themselves will be the 'fusible link' should something go badly wrong. The reverse flow of electrons from the alternator into the panel is prevented by a diode, but these have failed before.
__________________

Lug_Nut is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Incorrect currency eerootsus Fuelly Web Support and Community News 3 01-02-2014 05:08 AM
Combined totals of all my vehicles? nizationpcs Fuelly Web Support and Community News 0 03-30-2009 07:41 AM
m.fuelly.com crashing Mobile Safari on fuel-up reefdog Fuelly Web Support and Community News 10 08-20-2008 08:55 AM
Hummer get 25 MPG highway.. zpiloto General Fuel Topics 7 08-04-2006 04:50 AM
Preview: My new rims SVOboy General Fuel Topics 38 04-10-2006 10:31 PM

Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 08:07 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.