How can you tell which is the positive and which is the negative? Will it be clearly marked? Thanks!
791826
There is no positive and negative. It's basically an on and off switch. It will work on ether side. I use it on my Model A Ford to cut the battery off. I put it on the negative side of battery like is "battery-switch-cable to starter and rest of car". Model As are backwards. On modern cars I would put it on the positive side. For the price it works great.
791827
The cutoff should be installed *between* the positive current (the red wire, usually). So you would run a wire from the battery to one of the cut-off switch leads, and another wire from the other cut-off switch lead would go to the positive terminal of whatever devices (starter?) you are trying to manually cut off.
791828
Connect the line either to positive or negative. You do not want to connect to both. You will cause a short. Once you open the circuit to one terminal or the other it will shut off the flow of electricity.
791829
This switch is designed to turn on/off only one side of the battery. Normally you would remove the ground or negative wire from the frame or wherever it goes, connect it to the switch, connect the other side of switch to where the system grounds (where you removed the previous wire from). You will now be disconnecting the battery from the system. Make sure there is no other ground wires running from the battery to anywhere else. If there is you must put them through the switch.
578683
There's a little plus for positive and a little minus for negative stamped under each terminal.
416144
red to positive and black to negative. if there is any power in the battery the tester comes on. scroll through the options as described in the manual. 12 volt only.
1220841
Mine was clearly marked. From left to right (looking at terminal end of board:Gnd ( battery negative)motor (load) negative -motor (load) posative +Battery posativeHope this helps
1854700
No polarity does not change, With out seing it my guess would be the plus and negative signs are taking the place of male and female. In other words if you were using a single connector you would insert the male part into the female part of the connector. I have many panels hooked together with these connectors and it doesn't change polarity. I would recommend phasing plus wires from panels with red phase tape and phase wires back to invertor or charge control, makes it a whole lot easier to keep track of what is what.
1126854
If I remember correctly some things like the pH show a range & others just show positive or negative.
1450772
Polarity is embossed on the ceramic substrate with traditional symbols of positive and negative. If you can't locate, use s multi meter as it is a diode and only passes current from negative to positive
225015
They are normally used on the positive side. I installed mine on the positive.
581867
IT just made it that way so you can choose your positive and negative sensibly. if you choose the white thread as positive on one end. make sure you do that to the other end too. Hope this makes sense.
172565
Actually there are markings, they are just verrrry hard to see. There is a sloped edge where the batteries go in and if you get the light just right you can see the + or - signs.
1190239
A positive should either be a + or =. I'm not sure what the heart shaped window test is, so I could be wrong.
2164845
Hi Brandon. Do you mean that the - and + are reversed? Mine is the same way but it doesn't affect anything.
2082570
The black and red. It's confusing. One is red one is black and red that's negative
1666896
so is there an indicator that tells you which color is out? or do you have to judge by the printout?
987889
mine has yellow and black, the yellow is positive and the black is negative, I will guess the brown is negative and the yellow is positive, a continuity tester will tell for sure
1469172
Typically the white or dash-dot wire is positive and the unmarked black one is negative. As to the plug itself, the center pin is positive and the shield is negative. Of course, it is always best to test with a volt meter but this is standard electrical wire code.
2081590
Almost all, if not all button batteries are stamped with their brand name, type I.D. and a positive symbol on only one face of the button battery cell. Since the opposite, rear, or unmarked face of the battery is always the opposite polarity to the marked polarity, and considering the marked polarity is always positive (+), the opposite face will be negative and thus no negative (-) mark or stamp is required. With button batteries their proper installation into a product, e.g. a watch or calculator, is normally assured by their physical stepped edge design which dictates in what orientation they must be installed, i.e. which face should face into the device. Normally this would be the unmarked face. The marked face you will normally see after the battery is locked into place. If the battery's power is exhausted and it is properly installed, then the device it is to power won't work. Normally putting in a fresh battery in its correct orientation will get the device working again. If that doesn't fix the device, the device is either defunct or you may have installed yet another exhausted or dead battery. A voltmeter is really the only practical testing tool that can tell you if a button battery is exhausted, that is to say dead.