The BlackBerry Z30 with its non removable 2880mAh battery is supposed to last for 24 hours of mixed use which is awesome. On the other hand its always good to have a backup plan in case you are running low on your second or third day. That is why BlackBerry is going to release their own OEM backup battery for the Z30 similar to the very useful ones they made for the Z10 and Q10. The big difference is the Q10 and Z10 models essentially were just a charger with another spare battery. The Z30 OEM portable battery charger has a built in non-removable 2100mAh battery.
The details are in the picture above but essentially it can pass through 2A but only charge your phone directly at 1A which is great for a mobile charger. The backup battery itself can also be charged at 2A so it will charge back up quickly. No word on pricing and sadly the backup battery does not wirelessly charge.