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soarbooks
10-22-2002, 06:31 PM
Hi Foks,
Quick question: Does any one know how to replace the NEC MobilePro 770 internal back-up battery? What battery does it need, and how do you do it?

TIA,
soarbooks
Richie Rich
10-22-2002, 09:19 PM
I'm not sure the battery info myself, but I have had the case open to swap a motherboard around. I noticed that the battery is connected to the motherboard with two simple wires that are soldered to connectors that are spot welded to the battery itself. I didn't think about trying to read the battery type, but it looks like one of those standard watch batteries, about the size of an Everready CR3032. Would be pretty simple to swap out if need be. On my 770 it was held in place by a piece of tape, on my 780 it was held in place by a spot of silicone goop.
soarbooks
10-23-2002, 05:01 PM
..."On my 770 it was held in place by a piece of tape, on my 780 it was held in place by a spot of silicone goop."

Was it hard to get at?

soarbooks
Richie Rich
10-23-2002, 10:27 PM
These things are pretty easy to take apart if you are real careful.

The first step is to remove battery, then remove the rom cover screw and the cover, and the other 8 screws on the bottom. Flip it over and there are two screws on the other side that are normally hidden by the battery. Remove these two screws. Now carefully remove the two ribbon cables from their connectors. The connectors unlock by sliding the connector lock to loosen the ribbon cable. If you have never seen these type of connectors, then get help. You don't want to break the connector or the cable here or you will be screwed. Now open the NEC part way to about 45 degrees. Stand the thing on edge, and between the darker gray plastic and the silver plastic on the bottom half, that is the part that contains the keyboard, and the bottom case half, carefully spread the seam apart. The parts snap interlock with each other. Slowly separate by starting in one spot and working around the edge from where you decide to start, pry it apart a little further....eventually you will separate the two part entirely. Once you do that, you will be able to view the motherboard. If you need to, there are a few screws that secure the motherboard to the bottom half, and a cable that secures the lcd to the motherboard. On the 780 there will also be a cable for the thumbwheel. You at this point, you should be able to see the battery towards the back edge of the Nec pretty easily.

Richie