I don't have a lot of knowledge on electronics so I'm taking a shot at
this... I've got a Nikon handheld portable hard drive used for
viewing and storing digital photos. The battery was dead and I didn't
have the unit AC/DC power adapter with me, so grabbed another one that
I found in the office. Like an idiot, I didn't check the voltage/amp
rating before I plugged it in. The unit is supposed to get 5volts and
I plugged in a 12volt converter. Now the unit doesn't work at all and
I can't get the battery charged. I've got over 1,000 pictures saved
on the drive, so it's pretty important that I'm able to fix it. What,
if anything, happened - is it fixable - what's the cost - etc.? I'm
thinking to take the battery in to a battery store and see if they can
recharge it without being attached to the unit. At least then I might
get it working long enough to make a backup of all the pictures. Any
thoughts?

Blessings,
Nate K