Panasonic Toughbook CF-48 won't charge battery. Bad batteries fresh out of the box? --- Two of the three Panasonic Toughbooks - FOB (Fresh Outta Box,) though I can't really call them "new," will not charge their batteries. The battery stays at 0% charge, even overnight. It appears that the batteries are bad. I've tried putting them in the third laptop with no luck.

SOURCE: Install XP on Panasonic Toughbook CF-27 ?

I'm doing a clean install of XP but I can't do this as setup won't start bcoz the drive isn't bootable

SOURCE: keyboard installation for CF-52 toughbook

Here you , this is a step by step disassembly guide with pictures

Its for a Toughbook CF-50 but it should be similar as theres not too much difference in the model number

http://www.machinaelectronics.com/store/library/article.cfm?f=key_type_k17

Alex Howard

• 484 Answers
• Posted on Jun 22, 2009

SOURCE: upgrade hard drive in panasonic toughbook cf-50

1 - Using a stack of DVD RW blank disks, or a large capacity USB Flash/Jump Drive, back up your Laptop computer completely. If necessary, Use WinZIP to ensue that everything has been compressed into the smallest capacity possible.
2 - When you are certain that you have backed up the drive completely, remove the older drive
3 - Line up the new drive and the old drive and ensure the jumpers are set to the same settings as they were set on the older HDD.
4 - Once you are sure, you then restore everything from the back-up drive for the old hdd to the new disk drive.
5 - Test to ensure that everything from the old drive has been backed up from the old drive to the new drive.
6 - If you are comfortable that your backup has been completly restored from the backup meda to the new, larger hard drive, then be certain that you have restored from the older drive to the new drive, tighten all screws and cables, then close all ports and ensure that everything has been done properly by and for you.
7 - Be certain that you have created the same user accounts in the new drive as you had on the older drive.
8 - Now, power off the new drive while in the laptop. Wait about 30 seconds to one minute, then restart the new hard disk drive.
9 Test everything, to be sure that everything works properly. Go through everything from the top of the menu to the bottom of the menu. Try all accessories, try all applications. Ensure that all works right and that the applications work as they used to work, when it was on the old drive.
10 - Remember, you have a warranty on the new HDD, so be sure that you have tested everything to ensure that it all works properly, before you sign off on this new drive.
11 - Once you are certain that it all works correctly, you can then be sure that it is working properly and competely, because only you know if things are working correctly as they should be.
12 - Then you can sign off and you can be sure that things work properly.
13 - As carpenters say ... measure twice; cut once. You can only do this one time, so if you measure it more than one tim, you can be certain that you will get it done correctly and be happy that you did it right. from beginning to end.
Have fun. Don't be too serious about it, but do be careful, and get it right. Remember, get it right the first time, and you will be pleased with the results at the end.

SOURCE: I have a panasonic toughbook cf-48. It was working

Check your mains adapter plug that connects into the laptop power socket with a multi-meter, the voltage should be slightly higher than the voltage that is printed on the label on the bottom of the adapter. If the voltage is zero or way below the voltage that is printed on the label then the power adapter is faulty and needs to be replaced.

If the adapter is OK then connect it to the laptop and power it up, then look at the power/battery charging LED light and wriggle the power plug in the laptop's power socket. If the power/battery LED light flashes and in a certain position this LED light stays firm, then the power socket is either faulty or it has a dry solder joint where it is connected to the motherboard.
This can be repaired but it requires the laptop to be completely dismantled to get at this power socket and repair. I suggest you get a quote first.

SOURCE: Panasonic toughbook cf-48 two batteries went bad within a day

Place battery in freezer for 2 hours / remove and recharge, might make it last longer. (Removes any "memory" in them)

Might be worth checking the charger to ensure its working OK. Just becuase the light is on doesn't always mean its working.