소개
Here I am rebuilding, actually more building, a battery of the electric screw driver. The original battery is no longer available so I decided to build my own i order to continue to use the screwdriver. The battery cell I am using are 4/5 SC (sub C) size. Meaning they are 4/5 the size of a C-Cell. They are 23 x 34 mm in size with a capacity of 2000mAh and 1.2 Volts.
필요한 것
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Here is the original battery. Three cells surrounded by a soft plastic sheathing
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Cut the plastic (I used a utility knife) away.
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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
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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.
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The contacts on the old cells appear to be spot welded to make the connection.
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Separate the connections with either a pair of side cutters or a pair of scissor. This will allow you to remove the insulators.
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All three cells soldered together, positive to negative end, creating a series connection.
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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.
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Heatshrink tubing placed over the cells
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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.
Excellent guide. Very useful for guys who try to maintain old stuff.Simple step by step description and picturisation. Hats off to you for the painstaking work.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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댓글 3개
What are the specs on the batteries, and where did you get them? I don’t see any on mine. Thanks!
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