Normal to go through one or more sets of VMB3500 batteries per month?

[tessahagan]

Is it normal to go through one or more sets of batteries, per month, in the cameras? 

[jguerdat]

Not unless 1) too many minutes per day of recording and live viewing with <5 minutes per day being the spec, 2) poor signal strength between the base and cameras or 3) 2.4GHz interference from a wireless device someplace in the vicinity of the base or camera.