Power specs for the TB3
Input Voltage: 10.0-13.5 volts.
Current for the TB3 at rest (motors not energized): 0.10A to 0.32A based on back light setting
TB3 with Pan/Tilt motors powered: 0.66A
TB3 with Pan/Tilt/Aux motors powered: 1.15A
Connector: 2.1mm x 5.5mm x 12mm circular barrel connector – center positive.
Powering it from the wall – use the supplied adapter only - replacements can be found here - https://emotimo.com/products/12-volt-ac-adapter-us-int . Just because it fits doesn’t mean it will work ok! If you power it with a recycled supply from your old wifi router that says 12 volts/ 450mA – you aren’t feeding the rig enough current and the motion will suffer. If you plug it the the charger for a another manufacturer’s battery – it will likely harm the TB3.
For portable packs, there are oodles out there, but the landscape is changing all the time. Want a huge pack - we like this one - https://www.amazon.com/MAXOAK-50000mAh-Portable-Charger-External/dp/B00YP823NA/ref=sr_1_1_sspa?ie=UTF8&qid=1546554743&sr=8-1-spons&keywords=23000+battery&psc=1
The smaller, 12 volt packs are more difficult to come by these days, but searching for 23000 battery on Amazon typically yields some good results with 12 volt outputs.