Is there a internal battery that can be charged and is it a dual voltage system?
1406097
No battery or DC power supply. Comes with AC power supply similar to a laptop. Suspect, that due to its amplification, that any battery supply would not last very long.
234190
Thank you for contacting us. You are able to use a external charger to charge the battery for the item you are inquiring about.
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.
1630181
As far as I know, there is no internal battery. I suppose you could attach a battery to the power leads but that might be a bit awkward to hold very well.
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.
1872725
There is no internal battery for this pump. This kit includes the external battery pack, which takes AA batteries.
1763914
Yes - the battery is internal- you just need to charge it like you charge your phone
1914843
It is charged with a cord supplied via 12v outlet.Has an internal rechargeable battery buildt in. In the standby mode, I have left it on for 3 days and it worked. Great item, best I have ever had! You will not regret it I promise you!
1692842
It unit has an internal Lithium battery that you charge with a usb cable. Not replaceable.
364775
It is an internal battery system. When it is depleted it can be hooked up to your computer to be re-charged!!!
2124532
Yes it has its own internal rechargeable battery. .. and it lasts longer than the specs say it does
2141308
It looks to be an internal battery. You will receive a cord that plugs into the unit and into a 110 outlet to charge the unit. I can't see a way to open it up and replace the internal battery.
1674684
it has an internal battery that last up to 8 hours.it charges with a usb cable, and you can use it while is charging...
214702
It uses an NP-130 Lithium battery and charges internally. I am happy to answer any other questions you may have.
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.
1493931
I'm not sure what u mean but it does have an internal battery that charges and it does not have any problems u will be amazed
2175576
I think it has an internal rechargeable battery, charging through a USB to mini USB.