Unless you have replaced the default battery. To my knowledge you absolutely CAN NOT safely "jump-start" a fully depleted Blackberry battery as it is a Lithium ion battery and not a nickle cadmium battery. Attempting to reset it in this manner will possibly produce toxic fumes and even cause the battery to explode. If you have somehow found and purchased an Nicd battery for your phone; fine, you can follow these steps. I'll list them because you asked and because I'm sure if you asked someone told you they had tried it. But don't do it on the original Lithium battery.
Check the NICD rechargeable batteries using the battery tester to determine if they have been fully discharged. If there is some life in the NICD rechargeable battery, continue to use it until the charge has been fully depleted.
Determine the negative end and positive terminals of the NICD rechargeable battery.
Hold the black alligator clamp on the 12 volt battery charger to the negative end of the dead NICD rechargeable battery.
Bring the red alligator clamp up to the positive end of the battery and tap it lightly two or three times. As the battery is repaired, it may emit some sparks.
Hold both the black and red alligator clamps on the negative and positive ends of the NICD battery for absolutely no longer than 2 to 3 seconds.
Release the clamps and retest the NICD battery with the battery tester. If the battery memory has not been fully reset, repeat the repair process.
Again, I have not seen any Blackberry with anything other than Lithium batteries. DO NOT try this on a Lithium battery unless you have fingers to spare or a complete lack of respect for the use of your eyes.
Answers & Comments
Unless you have replaced the default battery. To my knowledge you absolutely CAN NOT safely "jump-start" a fully depleted Blackberry battery as it is a Lithium ion battery and not a nickle cadmium battery. Attempting to reset it in this manner will possibly produce toxic fumes and even cause the battery to explode. If you have somehow found and purchased an Nicd battery for your phone; fine, you can follow these steps. I'll list them because you asked and because I'm sure if you asked someone told you they had tried it. But don't do it on the original Lithium battery.
- Check the NICD rechargeable batteries using the battery tester to determine if they have been fully discharged. If there is some life in the NICD rechargeable battery, continue to use it until the charge has been fully depleted.
- Determine the negative end and positive terminals of the NICD rechargeable battery.
- Hold the black alligator clamp on the 12 volt battery charger to the negative end of the dead NICD rechargeable battery.
- Bring the red alligator clamp up to the positive end of the battery and tap it lightly two or three times. As the battery is repaired, it may emit some sparks.
- Hold both the black and red alligator clamps on the negative and positive ends of the NICD battery for absolutely no longer than 2 to 3 seconds.
- Release the clamps and retest the NICD battery with the battery tester. If the battery memory has not been fully reset, repeat the repair process.
Again, I have not seen any Blackberry with anything other than Lithium batteries. DO NOT try this on a Lithium battery unless you have fingers to spare or a complete lack of respect for the use of your eyes.