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The charger input voltage should make no difference on the output voltage / current, if they are designed to run on that input particular voltage. A 240 volt charger will not work on 110 volt and vice versa. If in doubt check the output voltage of the charger with a voltmeter. Make sure you are getting around 20 volts dc.
Do the batteries charge? Are they charged? The green indicator normally is the status signal that the battery is charged and the red indicates that the battery needs charging or is charging. If you plug in a charged battery, some chargers will flash red momentarily then go out. This is an indication that the charger checked the battery (red light) and if the charge is good, the red light will go out. I hope this helps you.
The Nikon D40 uses the EN-EL9 7.4 Volt Li-ion Battery. You should be able to read 7.4 V DC between the (+) & (-) terminals of the battery after it has been in the charger for several hours. If it does not, it indicates a bad battery, charger or both. There should over 7.4 V DC on the terminals of the charger if there isn't, it suggests a bad charger. If the battery voltage is OK, make sure it is inserted correctly. If still having trouble, it may be related to the camera power switch or internal circuitry. This will require returning to Nikon for repair. Good luck!
use a voltmeter. turn on unit to a low setting, place volt meter leads on broken wires one on each. if the voltage goes positive on meter. the positive clamp goes on the wire that the positive(red) voltmeter lead is on and the same for the negative. Good luck
Disconnect the - lead from that battery, Repower the charger. The LED should be green. If it stays RED, charger defective.
Reconnect the - lead to the battery, measure voltage when charger is on. Should be between 11.5 and 13 volts. If OK, replace the battery. If lower than 11.5, check for charger cable connections OR for a connected load ( power drawing ) of more than 10 amps.
Your electrician should have run a set of wires out to the generator from the transfer switch. The unit actually comes with a fuse holder, fuse, terminal connector, and jumper wire for installing these wires to the t1 or t2 terminals in the transfer switch. The dc wires will be the ones coming out of the battery charger, 1 of them will have a red marker around it, that is your dc positive. The 2 wires coming out of the opposite side of the battery charger is actuall your ac connection.
I suppose this is what you want to know
The battery charger has 2 leads coming off it as well as the power lead to the external power source .THE TWO LEADS WITH CLAMPS ON GO TO THE BATTERY THE RED GOES TO THE POSITIVE TERMINAL PLUS SIGN AND THE BLACK GOES TO THE NEGATIVE TERMINAL.MINUS SIGN, THE POWER LEAD PLUGS INTO THE POWER. AND THAT IS ALL THERE IS TO IT..
take an ohm meter you can buy for ten bucks at radio shack put the volt meter on DC volts plug the charger into the battery charger end the black lead goes tothe outside and the red goes inside, set the meter for 12 volts dv and mesure the voltage. read the voltage output on the battery charger transformer see if it's within a half volt if not the charger is bad, if it's ok then use rubbing achol and a q tip to clean the battery connectors on the computer and the battery itself, if you do not get the light then pull the battery out and hold the power button in the on postion and hold the enter key for 1 minute and try again, if the lights do not come back on your battery is dead, if the computer will still boot with the battery then the charger is working if it won't boot up the battery is dead. Got it?
You only need the red and black wires to supply power to the unit. The red positive wire goes to a positive terminal on your battery or positive side of a bus bar or switch, the black negative wire goes to the negative terminal on the battery or negative common bus bar. Do not try to earth the black wire to an aluminum boat hull... You are asking for trouble! Best to run the black wire straight back to the negative battery terminal or negative bus bar that is wired to the negative battery terminal.
The other colored wires on the 160C plug are used for interfacing with NMEA2000 compatible devices, like a compatible GPS.