The Leica TL2 mirrorless camera can be charged with a portable battery pack:
The Leica TL2 battery (Leica BP-DC13) is selling for $95. You can get a decent portable charger for $30 on Amazon.
The Leica TL2 camera is finally in stock:
Aditional information on mobile charging from Leica’s website:
“The HDMI port makes it easy to connect the Leica TL2 by cable to a monitor screen or a TV. Its USB 3.0 interface corresponds to the latest standard and, in addition to fast data transfer, also allows mobile recharging of the camera, for instance from a laptop computer or a USB charging socket in your car. That saves valuable time you can use for what’s essential: taking pictures.
And, if you don’t happen to have a memory card to hand, there’s no need to despair: in addition to a slot for SD, SDXC, and SDXC cards, the Leica TL2 has a built-in, 32 GB memory with space enough for at least 1,000 pictures with maximum resolution.”