7 Comments

1. 

   Mickirs

   on 3rd Sep, 10 11:09am

   blk and white is POSITIVE garanteed

2. 

   MICHAEL M

   on 3rd Sep, 10 12:09pm

   The Black is positive and the white striped black wire is negative.

3. 

   Joy M

   on 3rd Sep, 10 12:09pm

   Per my husband:

   Solid black is positive + (just like in a car)

   White with black stripe should be negative – but it would be wise for you to contact the manufacturer because some of these things are made in a foreign country and they “do things backwards” (disclaimer: husbands words, not mine)

   Also, you could trace the wires and see which one goes to ground – that would be your negative.

4. 

   oklatom

   on 3rd Sep, 10 01:09pm

   To know for sure, step out in the sunshine with your voltmeter in hand, set for a 12 volt range. Connect the leads. If the meter goes down instead of up, reverse them. Look at which lead color has the “+” cable. That will be plus.

5. 

   science teacher

   on 3rd Sep, 10 02:09pm

   Usually there is a fuse on the positive side of the solar charger. Put it in the sun and use a multimeter to check.

6. 

   Lupo Cattivo

   on 3rd Sep, 10 02:09pm

   There is no black and white. Use a tester, set it on volts DC(careful, end scale shall be higher that 12 volts), connect terminals. The red connection of tester is + and black is -. If the hand shows actual volts (or the display shows +) you got it right. If not you got it the way around.

7. 

   Robert B

   on 3rd Sep, 10 03:09pm

   Lupo has it right in automotive an all the marine apps I have ever seen Red is always.. Positive and Black is always Negative
   Dont know about this solar panel though. The only way to find out is to test it and mark them.for future Reference Red and Black
   Tape on the wires..+ and -

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