Many Logitech products look alike, but use different parts. To ensure that you get the correct replacement, you'll need to find the part number of your Logitech device and match it to one of the numbers displayed in italics below the descriptions at left. This number will be in the format of P/N:8xxxxx or 8xx-xxxxxx, and can be found in the following locations:

Bottom or rear of device

Underneath battery cover

Behind foam ear cushion

Go here and put your number in: http://buy.logitech.com/store/logib2c/en...|downloads||dd

Here how to replace it:

Carefully peel off the orange back of the keyboard. Do not tear it as we will replace it during reassembly.

Remove the 19 screws. 19th screw is under the black Bluetooth sticker under the charging pin.

Pry open the keyboard.

Replace the battery.

Sqeeze the keyboard back together making sure the on/off switch functions correctly.

Looking at the glue patterns on the gray side of the orange backer mark each screw.

Drill all marks with a 5/16" drill bit. This will allow the keyboard to be taken apart without peeling off the backer next time.

Spray the gray side of the backer with spray adhesive (3M Spray Mount in my case).

Press the orange backer back in place.

Hi,

I have, somewhat, the same problem.

I've tested the battery and it's fine, I took it to a specialist and he told me that the chip responsible is the one controlling the charging process.

Is there a schematic for this keyboard?

He showed me the part but the text printed on it is "home labeled". How can I find the correct part?

He told me it's the first chip above the battery connector on the board. (20+4 pins).

Thanks

Update

Here's an image

can you describe the symptoms of your failed chip. Ive replaced my battery but i still doesnt stay charged for long. when charged it flashes red->red->red->green is the battery likely faulty? i could buy a genuine logitech battery but its getting to the point where i might as well buy a new keyboard...

There is a video for how to replace your Logitech diNovo Edge Keyboard battery at:

http://www.newpower99.com/Battery_for_Lo...