I have a show next week where I will need multiple pres to power around 4 pair of mics. I do have an external battery which powers both my 680 and the FP24, however, I'm planning on running my UA-5 and the 680 using the external. So how long can I expect to run the FP24 on freshly charged AA batteries powering a pair of 414 XLII's for? All other mics will be powered by tinyboxes and PIPsqueaks. Thanks for your input in advance.
When you say "freshly charged" batteries do you mean new, store-bought alkalines or are they rechargeables of some kind?