I like that solution of swapping them out every week. I wish my Tandem used replaceable batteries. That’s the only complaint I have about the pump. I’m an old school Medtronic user, I’m used to swapping batteries out of pumps.
I won’t be able to comment on the lithiums that I just bought for some time, because I’ve got one of the regular Energizers in the pump now, so it will be about 3 weeks before I’ll try out a Lithium. I’ll report back when the first lithium dies.
Dave, I have a 630G (very similar pump), am not using Minimed’s CGM system, and I get 28-31 days on each Duracell Quantum battery (which cost a bit more than the Duracell regular alkaline batteries). I’ve never had a battery go less than 28 days (and yes, I keep track of each one!).
For me, the good news is that AA batteries are so easy to find. I always have a spare battery just in case.
Hope this helps!
Dave44, I have the 670g with the sensors running in auto-mode,and I use the lithium battery’s. i get 6+ weeks per battery, and run about 92%+ time in auto mode. I have found no issue, I usually stock up on batteries around various holidays, from Walmart, buying the larger packs. There is some juice left in them when the Medtronic alarm sounds, I just keep the batteries and use the remaining power in my kid’s xbox controller.
I use a CGM and check my daily history every day and my 7 day history and 30 day history, which take a number of seconds to load, several times a week. I believe this is why my lithium Energizer batteries only last 12 days.