Originally Posted By: rosetree
Originally Posted By: Beakybird
The battery is a cell phone type lithium battery that performs better than AA alkaline batteries.


I own a Q3HD,too. For home recordings, I just started using an electricity supply, as otherwise you are always nervous whether the batteries are going to hold or not.
But the lithium battery of the new model - is it fixed or can you take it out and have two of them in order to change them?


The battery on the Q4HD is removable, but it looks like it's proprietary to Zoom. It might be expensive to replace.

One great advantage over the Q3HD is that you have to reset the date and time every time you change batteries. With the Q4HD, I just removed the battery, and the date and time was still correct.