No. I did not say the radio was draining the batteries in a half hour. Just re-read my post.
But it’s becoming evident my post has, at least in part, hyjacked the OP’s post. Hopefully, as this was not my intent, I haven’t offended anyone. And since no one has pointed that out, at least not yet, I will continue.
The OP’s post dealt with a problem that may require a repair. I know mine does. Because it’s telling me the batteries are going dead after a half hour (approximated) of usage. But when I pull the batteries and test them they test fine. Nothing is getting hot. It’s like someone cranked up the voltage alarm level the radio is reading and setting off the low battery alarm prematurely. I haven’t found any menu controlled setting that would allow for this as yet on the 325 but there is a feature that allows for setting the voltage level yourself and setting it to a lower value to get added usage time from the scanner generated a lot of interest when the SDS100 first came out the the smaller battery pack. The feature allowed for letting the remaining power to drop a bit lower (to whatever value they chose) before sounding the alarm in the SDS100. And I am hoping someone out there knows how to do this with the 325 also. (Before anyone goes looking for how to do that with the SDS100, remember, lithium-Ion batteries should never be allowed to approach zero volts. If they do drop that low they are toast. It’s a paperweight. There’s no way a consumer can or should salvage the battery.)
This last part deals with my attempt to get more usage from the two AA batteries and has nothing to do with the original issue the OP is having. I was using the very expensive Eveready Lithium-Ion AA DISPOSABLE batteries. Note that I said “disposable”. They last longer but can not be recharged. That’s what “disposable” means. They also longer than the alkaline disposables or the nicad rechargables. My wish was for an Eveready AA Lithium-Ion battery that was Rechargeable. But then I saw an add for a rechargeable L-I AA battery. The battery label reads TENAVOLTS Rechargeable lithium Battery. It’s rated at 1.5 volts and 2775 mWh. They came 4 to a pack with their own charger. The charger model is TS-C1.