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Repairing Black and Decker 9074 Screwdriver Battery

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  1. Repairing Black and Decker 9074 Screwdriver  Battery, Repairing Black and Decker 9074 Screwdriver  Battery: шаг 1, изображение 1 из 3 Repairing Black and Decker 9074 Screwdriver  Battery, Repairing Black and Decker 9074 Screwdriver  Battery: шаг 1, изображение 2 из 3 Repairing Black and Decker 9074 Screwdriver  Battery, Repairing Black and Decker 9074 Screwdriver  Battery: шаг 1, изображение 3 из 3
    • Here is the original battery. Three cells surrounded by a soft plastic sheathing

    • Cut the plastic (I used a utility knife) away.

    • Now the three cells are clearly visible and the way they are connected in series. Meaning positive from one cell to negative on the next cell. Each cell separated by a rubber insulator

  2. Repairing Black and Decker 9074 Screwdriver  Battery: шаг 2, изображение 1 из 3 Repairing Black and Decker 9074 Screwdriver  Battery: шаг 2, изображение 2 из 3 Repairing Black and Decker 9074 Screwdriver  Battery: шаг 2, изображение 3 из 3
    • Top to bottom on this image shows the insulator that is on the top portion of the cells. Next are the old three cells and bottom the new cells.

    • The contacts on the old cells appear to be spot welded to make the connection.

    • Separate the connections with either a pair of side cutters or a pair of scissor. This will allow you to remove the insulators.

  3. Repairing Black and Decker 9074 Screwdriver  Battery: шаг 3, изображение 1 из 3 Repairing Black and Decker 9074 Screwdriver  Battery: шаг 3, изображение 2 из 3 Repairing Black and Decker 9074 Screwdriver  Battery: шаг 3, изображение 3 из 3
    • Here all the cells are separated and the insulator removed

    • Plenty of corrosion visible on each of the old cells.

    • To prepare the new cells, the heatshrink insulation from the contacts need to be removed. I used a utility knife to remove that.

  4. Repairing Black and Decker 9074 Screwdriver  Battery: шаг 4, изображение 1 из 3 Repairing Black and Decker 9074 Screwdriver  Battery: шаг 4, изображение 2 из 3 Repairing Black and Decker 9074 Screwdriver  Battery: шаг 4, изображение 3 из 3
    • Here is the first cell, insulation removed. Prepare all cells like that.

    • Align the positive contact of the first cell with the negative contact of the second cell.

    • Since the contacts will be soldered to each other, I did use some flux on the contacts prior to soldering.

  5. Repairing Black and Decker 9074 Screwdriver  Battery: шаг 5, изображение 1 из 3 Repairing Black and Decker 9074 Screwdriver  Battery: шаг 5, изображение 2 из 3 Repairing Black and Decker 9074 Screwdriver  Battery: шаг 5, изображение 3 из 3
    • Apply the flux to the contacts, in my case I used a cotton swab.

    • Once proper alignment is obtained, I use a alligator clip to hold them in position.

    • Now solder the contacts together. I used a 30watt soldering iron with a blunt tip.

  6. Repairing Black and Decker 9074 Screwdriver  Battery: шаг 6, изображение 1 из 3 Repairing Black and Decker 9074 Screwdriver  Battery: шаг 6, изображение 2 из 3 Repairing Black and Decker 9074 Screwdriver  Battery: шаг 6, изображение 3 из 3
    • Here is the first attempt. Luckily I noticed that I had forgotten to install the rubber insulator before going on to the next cell. Desolder the contacts to rectify this.

    • Here is the next cell properly prepared.

    • First two cells, separated by the insulator, soldered together.

  7. Repairing Black and Decker 9074 Screwdriver  Battery: шаг 7, изображение 1 из 3 Repairing Black and Decker 9074 Screwdriver  Battery: шаг 7, изображение 2 из 3 Repairing Black and Decker 9074 Screwdriver  Battery: шаг 7, изображение 3 из 3
    • 2nd and 3rd cell prepared and being aligned.

    • Applied flux and alligator clip to hold it in alignment.

    • Solder the contacts together

  8. Repairing Black and Decker 9074 Screwdriver  Battery: шаг 8, изображение 1 из 3 Repairing Black and Decker 9074 Screwdriver  Battery: шаг 8, изображение 2 из 3 Repairing Black and Decker 9074 Screwdriver  Battery: шаг 8, изображение 3 из 3
    • All three cells soldered together, positive to negative end, creating a series connection.

    • The original battery was wrapped in some soft plastic. I decided to use 1 1/4 inch heat shrink tubing. Black electric tape might work just as well, but I used what I had on hand.

    • Heatshrink tubing placed over the cells

  9. Repairing Black and Decker 9074 Screwdriver  Battery: шаг 9, изображение 1 из 3 Repairing Black and Decker 9074 Screwdriver  Battery: шаг 9, изображение 2 из 3 Repairing Black and Decker 9074 Screwdriver  Battery: шаг 9, изображение 3 из 3
    • I placed a clamp from end to end. This will prevent any exposure to hot parts, will allow movement of the battery and still maintain alignment.

    • Here is the two speed heatgun I use for my projects.

    • Simply apply constant heat to the tubing by moving the heatgun along the heatshrink tubing.

  10. Repairing Black and Decker 9074 Screwdriver  Battery: шаг 10, изображение 1 из 3 Repairing Black and Decker 9074 Screwdriver  Battery: шаг 10, изображение 2 из 3 Repairing Black and Decker 9074 Screwdriver  Battery: шаг 10, изображение 3 из 3
    • Here is the battery with the heatshrink tubing attached.

    • Obviously the contacts are being than the connector. (The corrosion visible on the connector was cleaned of during the installation)

    • Trim the contacts with either a pair of sidecutters, or like in my case, use a pair of scissors.

  11. Repairing Black and Decker 9074 Screwdriver  Battery: шаг 11, изображение 1 из 1
    • Once the contacts are trimmed to size, the battery is ready for installation into the screwdriver. There is a separate guide for that. Total cost for this was around $9.00 for the cells.

Заключение

To reassemble your device, follow these instructions in reverse order.

7 участников успешно повторили данное руководство.

oldturkey03

Участник с: 09/29/10

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3 Комментариев

What are the specs on the batteries, and where did you get them? I don’t see any on mine. Thanks!

TerryG - Ответить

eBay has the exact set the 4/5 sc sub c are the shorter ones easy to find with connecters already on each end of battery I'm rebuilding mine soon as they come in I'll post results

Corey Coker -

Thanks for the instructions.. Just a small point, when applying the heat gun (for thermal shrinking application) I think you better tell to use insulators or some kind of n insulation for the metal clamp, to avoid short circuit.. But thanks for all this anyways…

facehobi - Ответить

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