Braun Oral-B Professional Care 9900 Triumph Ni-MH battery Replacement

ID: 28633

Description: The battery can be bought either on ebay or...

Steps:

1. Remove plastic ring by prying it off with large screwdriver. Be careful not to damage rubber handle top or the ring.

2. To remove the base of your handle place triangle shaped knob on your charger into hole at the bottom to unscrew and remove a small plastic screw. Turn clockwise
3. You might use a flat screw driver to help separate the bottom

4. Do not pull the coil ring as the wire will break away from the the circuit board
5. With flat screw driver, slide down along the case. Gently push both plastic tab toward the center
6. To help you removing the inner part, you can insert another screw driver here and pull gently toward you while you try to free the plastic tab

7. Be careful not to break those wire as they are very fragile
8. Use a T6 screwdriver to remove the screw
9. You can also grease the gears

10. Pull the plastic clip and lift the LCD screen a little bit on both side so you can free the LCD screen from the bottom
11. After you have remove both plastic clip away from the circuit, slide the LCD screen up. You will fee the LCD screen from the top

12. This is the positive tab
13. This is the negative tab

14. Remove the spring

15. Remove the battery tab from the circuit board

16. Make sure you respect the polarity when you are placing the new battery (see step 6)
17. You might need to trim the battery tab
18. Solder the battery tab on the circuit board