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18 volt battery charger will give out 20 to 22 volts. and drop off while charging. to around 19 volts. its just finding the right amps. as this is the most important part. these can very from 3 to 20 amps. some cheap chargers are 1 or 2 amps and can take up to 8 hrs to charge a battery. as an even a charger that says 18 volts at 8 amps or 6 amps should be fine. really depends on the manufacture setup.
During the initial state of the charge, the charger operates in a fixed-current mode. This means that the current will be held at a constant rate until the battery is charged to a bit over 18 Volts. During this phase, the output of the charger will not be 18 Volts. This is done for safety and battery preservation; forcing 18 Volts on a battery discharged down to 15 Volts or less could cause the battery to overheat. If no battery is connected, the charge controller may hold the output low until a battery insertion is detected.
The exact behavior of the charger depends on the chemistry for which it is designed, whether Nickel-Cadmium, Nickel-Metal Hydride, or Lithium ion. If the output of a known-good battery is 18 Volts after charging, and it has normal capacity, the charger is working properly.
However, a bad cell in the battery changes things. If you run a Ni-Cd battery down too far, the weakest cell in the battery may begin to reverse charge from the current coming from the other cells. This usually causes an internal short circuit, and the cell will be stuck at 0 Volts. A battery pack with one shorted cell will read 16.7 -16.9 Volts when fully charged, and the drill will not have the peak power it should. The charger will give you a battery fault indication if it is equipped to do so.
No. It will not charge
to get batteries to charge the voltage in has to be greater than the battery voltage so the charger you want is 20 volts which in fact will probably be charging at 22 volts
You need a volt meter, They are cheap and it will come in handy down the road. The volt meter will tell you if your charger is the problem or the battery has went to battery heaven.
Yes you can. On tools, 18 volts is 18 volts. Tools don't 'know' how the power is being created, either by Ni-Cad or Li-Ion means. Chargers are totally different. Most Li-Ion chargers can charge older Ni-Cad and some Ni-MH batteries but older Ni-Cad chargers will charge Li-Ion battery untill they overheat and sometimes start on fire because older chargers can't detect when the Li-Ion batteries are full.
This can happen if the battery is too dead for too long. Keep trying to make it work like you have maybe 20-30 times. Or you can leave the battery in for a few days and let the logic chip do it's job. It should start working in a day or two.
I have to be the bearer of bad news. These are mass produced to give you the lowest price possible. They are made in Keorea/Taiwan and unfortunately do not make replacement parts. These are sold to any company that pays enough to put their name on it. Shop force makes the same drill and several other brands. So when something goes bad you have to replace the entire drill (only comes in the combo pk). You can't buy seperate pieces. Try shop force or Master craft. They're similar to what you have. Found one on Ebay. IF you keep looking you can probably find a seller with just the charger. Good luck http://cgi.ebay.com/18V-Cordless-Drill-with-charger-battery-NEW_W0QQitemZ260460074195QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3ca4a154d3&_trksid=p3286.c0.m14
http://www.220converters.com/ GO TO THIS WEB SITE AND YOU CAN FIND ALL THE CONVERTERS YOU NEED ALSO READ THE NOTES ABOUT WHAT YOU NEED TO TAKE WITH YOU BATTERY AND POWER WISE . HAPPY TRAVELS AND HAVE A GOOD TRIP
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