Hi,
I work for a software company and recently we have had to start doing some electronics testing in relation to our software.
The problem we are running into is that we have these mid-grade (~ $500) multimeters run out of batteries before the hardware we are testing does, and the test we are running is to benchmark current draw over the life of the battery. The multimeters run on 6 AA batteries in series which should be about 9V if each one is 1.5V. When we connect our Constant power supply to it's battery terminals and try to run it with 9V, the meter does not turn on. I've tried overpowering it a little by running 10V but this also did not work. Our CPS is 3A so that should not be the problem.
I'm wondering, what could cause this? Is there a solution for it?
Any thoughts or advice would be very helpful!
Thanks,
Collin