Does this have an internal battery? For example, can I charge it and then unplug it from power and continue to use it?
1448668
No battery might be an advantage with regarding auto-connecting and power on/off with car start. Might not be bad.
2256378
no it has a power outlet plug in, only way to charge it. there is a mini usb port but that is not for charging
2257046
Yes, it has it's own internal battery. As far as a complimentary, back-up battery, No it does not. That would be nice, and a very good selling point.
957121
It has an internal battery, non-removable. You must take it off the wall and charge via usb cable.
198842
It has an internal battery, it needs to charge, you don't replace the battery. It is like an iPod. I hope I helped
1863904
It charges an internal battery by usb port, so not that I know of ... however, at over 2 hours of battery life, you can take a pretty long trip with it.
1536598
Yes. I leave it plugged in since I use it at home. If the battery runs out, it will take some time before it charges enough to use again. I expected it to work as soon as I plugged it in but it didn't.
1288000
It does have some sort of internal battery. It is sort of wimpy. It ran on its internal power for about an hour. I ran a USB charging cable around the windshield and down to the cigar lighter power adapter so it was mostly out of sight and just leave it plugged in.
1904045
Yes the internal battery can be recharged. Have only had to recharge it once and did that in the evening leaving it on all night. I haven't found anything yet that would show the status of the battery, or it's level of charge.
1668729
no it does not have an internal batteryThe instructions make it seem like it does, but if you unplug the power you crash
809741
Battery is internal you plug the whole thing into the wall... It has the regular outlet plug like a lamp.
34405
It comes with a cord for recharging, but not to plug into electrical outlet. My husband uses it, then puts it on to charge. Have not had any problems with it running out of charge if done daily.
1144038
This is a charger and does not contain an internal battery. Once connected, the charge time of the battery being charged varies by size, current charge, etc...
1164837
You could leave the unit plugged in until you need it but it's not necessary. It holds a charge for a very long time. You won't be disappointed. I purchased this for my husband three years ago for Christmas. He still says this is his favorite present, EVER!
1460878
It is powered by an internal battery. It is charged by a charger that comes with it. The charger plugs into a wall outlet, it is not a usb charger.
1104736
Battery is a separate item. It can be charged while on the unit or with separate, stand alone charger.I purchased the separate charger to allow me up to 16 hours of battery life, without external power source.
1204449
There's definitely a builtin, rechargeable battery yes. That said, it doesn't seem to charge via USB - i.e. when I plug it into my laptop to copy files onto it, it can't get its power via the USB connection, nor will the battery charge if left plugged into the laptop for a long time. It seems like it'll charge only via the AC adapter.