iRobot battery replacement

Our iRobot is not working since the battery is getting bad. I went to Amazon.com and found this battery and following instruction. I ordered the battery from Amazon, replaced it and took some pictures share with you.

"In detail, here are the steps you'll need to know:
1) For pictures and some basic online instructions, do a Google search for "batteryspace NiMH IRobot Roomba" (without the quotes).

2) Start by removing the battery case from Rumba (simple).

3) Using the provided screwdriver, unscrew the Rumba battery case

4) If the top lid does not easily come off after unscrewing the triangular screws, it is likely that your case is also glued shut (most seem to be this way). You'll need to use extreme caution and patience to carefully pry/cut/chisel off this lid without breaking it. To do this, I used a combination of some flat-edged screw drivers with some gentle taps and a sharp utility knife. This part alone took about an hour and is by far the biggest challenge in this build.


5) With the lid off, you can remove the old batteries and de-solder the leads that are connected to the 3 wires. I suggest you record which lead goes to which wire.

6) In my build, I had to shorten the wires with the new battery pack (far too long to fit otherwise). I determined the new length by installing the battery pack into the case, routing the wires the same as in the final assembly, and clipping each about 1 inch beyond where the lead would be located.

7) Solder each wire to its respective lead.

8) Put the new battery pack into the case and assemble leads into case.

9) Screw the top back on and pop it back into your Rumba.

10) I let mine then charge overnight for a solid first-time charge. "

My own notice:

1) Not much glue alone the edge of box. It is relatively easy to open it with utility knife and a flat screw driver;
2) Be careful not shot circuit the black and red wires when working on it.