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I assume you mean to charge the main car battery? if so, with power turned off for your battery charger, you need to connect the Positive (+Red) to the Positive of the charger, and the negative (-ve Black) to the negative of the charger, check connections are correct and then power on your battery charger. Lots of youtube videos on this if you need help.
Battery chargers are wired into a boat's electrical system. Wiring the charger to a battery switch permits the charging of the individual batteries or battery banks. The switch can be configured to charge both batteries or battery banks at once. Mounting the charger in the vessel keeps the charger where it will do the most good--connected to the batteries. This is useful if you are stuck with low batteries and need a recharge. Power from a generator, shore power or even AC power from another vessel can be used to get you going again
Instructions Things You'll Need: Battery charger Battery switch Battery cable (sized) Cable cutters Razor knife Battery terminal lugs Lug crimper Terminal kit Terminal crimper Hammer Step 1 Mount the battery switch with the mounting kit provided by the manufacturer. The switch should be accessible but close to the battery or battery banks. Step 2 Mount the battery charger in a location that will be accessible but protected from the elements. Mount the charger close to the battery switch to reduce the size of the charger leads. Step 3 Connect the battery cables to the battery switch. Mount the battery cables onto their corresponding terminal studs on the battery switch. Step 4 Lay out the battery positive cable from the charger to the switch and cut it to length with the cable cutters. Strip 3/4 inch of insulation from the cable ends with a razor knife. Splice the cable to the hot wire from the charger with a **** connector and the terminal crimper. Crimp a terminal lug onto the battery end of the cable with the lug crimper and a hammer. Connect the terminal lug at the battery switch positive output terminal. Step 5 Lay out a battery cable from the charger to the battery negative terminal block. Cut the cable to length and strip 3/4 inch of insulation from the ends with a razor knife. Connect the battery negative cable to the charger negative power lead with a ****-splice and the terminal crimpers. Crimp a terminal lug onto the terminal block end of the cable with the lug crimper and a hammer. Connect the terminal lug at the battery negative terminal block post.
Tips & Warnings Set the switch to "1," "2" or "both" to charge battery bank 1, bank 2 or both batteries at once.
you will need a reducing transformer 220volts to 120 volts, you can find one at Radio Shack or Fry's Electronics., European countries uses 220volts, and the plug configurations are different from those of the USA.it is recomended to take one of these transformers with you when you travel abroad.
If you have a battery charger, remove the battery cover to expose the battery terminals then you can connect the battery charge to the battery. Make sure you connect the positive lead from the charger to the positive terminal on the battery and the negative lead from the charger to the negative terminal on the battery before you power up the battery charger. When you have finished charging the battery, power off the battery charger before you disconnect the leads from the battery.
If you have a battery charger, remove the battery cover to expose the
battery terminals then you can connect the battery charge to the
Make sure you connect the positive lead from the charger to the positive
terminal on the battery and the negative lead from the charger to the
negative terminal on the battery before you power up the battery
When you have finished charging the battery, power off the battery charger before you disconnect the leads from the battery.
First suspect the battery. As I guide I have split the task into the following steps.
1. Get a voltmeter and test the battery. It should report 12.4 or 12.6 volts. Branded batteries frequently incorporate a battery status indicator in the form of a watch glass at the top. The color change indicates the battery condition.
2. Now connect the battery with the UPS leads securely and plug into AC mains (with electricty). Test the battery terminals for voltage. If voltage is between 13 to 14.5 volts then the charger is OK. If not then check if the fuse with the DC charger is blown. With the battery disconnected check voltage between leads. It should be zero (if it showed zero volts with battery connected). If not then the charger is faulty. Also if it shows 13 - 14.5 volts with battery connected and disconnected then it is OK.
NEVER connect positive to negative. You'll damage your electrical system in the car or fry the charger.
It is best to put the positive on first, and then the negative. Remember, it doesn't always have to be the negative post of the battery, it can be a really good ground on the bare metal of your car.
But sparks just go along with it - don't let them scare you. But I always connect the clamps first, then turn on the charger, with the dial on "off". Then make sure of the 6/12 volt settings, and the amp charge you want to put on. A long slow charge overnight fo 12 volt can be 10 amps. A relatively fast is 50. And then to jump it off, go to the setting.
Make sure the battery being charged is sitting in wood, not concrete. If you have the old fashioned battery with removeble water caps, don't breathe the vapors.