Battery charger power of battery not charges - Cell Phones

There could be several reasons why the Black and Decker 18V battery charger's light stays red and the battery doesn't charge. Some possible causes include:

1. The battery is not properly seated in the charger. Make sure the battery is securely inserted into the charger's battery compartment.
2. The battery is damaged and cannot be charged. Try using a different battery to see if it charges properly.
3. The charger is not functioning properly. Try using a different charger to see if it charges the battery.
4. The outlet or power source you are using is not providing enough power. Try plugging the charger into a different outlet or using a power strip with surge protection.
5. The charger's fuse is blown or the charging contacts are corroded or dirty. Clean the contacts and check for a blown fuse.

If none of these solutions work, it may be best to contact Black and Decker's customer service for further assistance or to get a replacement.

hi Terry.
you could try homebase.or ebay will have them.
or this link should show you where you can buy them.
battery charger for ozito drill Google Search

If you use a fast charger, or a power charger, that can be the cause of your trouble. I used to charge with different power chargers till I learned they push every battery over its limits. After at least 3 different power chargers and about 100 defective batteries, I now charge my batteries with normal slow chargers. Before I can go on a shoot, sometimes 8 slow chargers are charging a whole night. But since I stopped using the power chargers I never lost a battery on overcharging (actually overheating)

the trimmers switch may be faulty.

CHARGING THE BATTERY PACK
Battery packs for this tool are shipped in a low charge condition
to prevent possible problems. Therefore, you should
charge them until the green LED on the front of the charger
comes on.
NOTE: Batteries will not reach full charge the first time they
are charged. Allow several cycles (operation followed by
recharging) for them to become fully charged.
CHARGING A COOL BATTERY PACK
See Figure 3.
If battery pack is within normal temperature range, the red
LED on charger will come on.
NOTE: If the charger does not charge the battery pack
under normal circumstances, return both the battery pack and
charger to your nearest Ryobi Authorized Service Center for
electrical check.
n Charge the battery pack only with the charger provided.
n Make sure the power supply is normal household
voltage, 120 volts, 60 Hz, AC only.
n Connect the charger to the power supply.
n Place the battery pack in the charger aligning raised rib
on the battery pack with the groove in the charger.
n Press down on the battery pack to be sure contacts on
the battery pack engage properly with contacts in the
charger.
n Normally the red LED on charger will come on. This
indicates the charger is in fast charging mode.
n Red LED should remain on for approximately 1 hour
then the green LED will come on. Green LED on
indicates battery pack is fully charged and charger is
in maintenance charge mode.
NOTE: The green LED will remain on until the
battery pack is removed from the charger or charger is
disconnected from the power supply.
n If both yellow and green LEDs come on, this indicates
a deeply discharged or defective battery pack.
Allow the battery pack to remain in the charger for 15
to 30 minutes. When the battery pack reaches normal
voltage range, the red LED should come on. If the
red LED does not come on after 30 minutes, this may
indicate a defective battery pack and should be
replaced.
n After normal usage, a minimum of 1 hour of charging time
is required to fully recharge battery pack.
n The battery pack will become slightly warm to the
touch while charging. This is normal and does not
indicate a problem.
n Do not place the charger and battery pack in an area of
extreme heat or cold. They will work best at normal room
temperature.
NOTE: The charger and battery pack should be placed
in a location where the temperature is more than 50°F
but less than 100°F.
n When batteries become fully charged, unplug the
charger from power supply and remove the battery
pack.
Source(s):http://toolboyworld.com/eBay/Ryobi_P110/...

That depends entirely on the charger. Cheap chargers will not shut off power to batteries even when they are fully charged. Nicer chargers will cut power to the batteries when they are charged up.

But the safe answer is yes, remove batteries once they are done charging. (And store batteries with a full charge.)

It's likely your charger. You probably own a "fast charger" but it's also probably designed for your lower mAh power batteries. The charger does not understand the power difference of your newer high-capacity battery, thus it is automatically stopping the charge before completion sensing something is wrong. You'll need to either purchase a newer charger, clearly stated capable of charging 3000mAh batteries. An alternative is to use an older "trickle" charger (one of those that charges at very low power slowly overnight). These don't automatically turn off when the battery reaches full charge, thus will charge your battery.

I had the same problem and found a solution on another forum...
Plug the battery into the charger. The yellow and green lights come on. Leave the battery plugged into the charger. Plug and unplug the charger power cord from it's power source a few times until the the red charger light comes on..... problem solved!

I think the "smart" circuit in the charger that is supposed to trickle charge before the regular charge cycle needs at least some battery power to test and start the cycle. If the battery is totally discharged, the test can't deternine the battery status and will not charge.... Plugging and unplugging the charger seems to bypass this teat and charge the battery normally. The charging process should work normally after this method.

Do you have the charger terminal, or do you have the charger that you have to take out the battery and charge. Because I have found that my base terminal charger works better than the battery charger that needs the battery to be removed to charge.If you have the terminal charger and the power light is green when it is in the charger I would start from the terminal

Dust getting in the charger is a problem, Try blowing it out with a moisture-free dust remover, found at most any store. Green flashing means improper power, due to dust or power from the outlet, try a differant wall outlet. Red flashing means the charger or battery is to hot and must cool down before it will charge. The charger will not charge a battery if the lights are flashing. Solid Red light means it is charging and solid green light means it is charged. Plug the charger in first before putting the battery on the charger. If the charger has been droped or hit the floor the coil inside could have broke loose and dammaged the charger requiring it to be replaced.