My 640G was supplied with 2 Lithium batteries. Will look into using the rechargeables, thanks for the heads up on that! Only 3 more days of injections!!!
I think my 640G was also supplied with two batteries but they were the same as the ones Medtronic supply as a replacement. Standard AA energiser batteries.
Having a look back over time (6 months now) I can see the 1st battery lasted just 12 days obviously as I was playing with the dame thing so much getting used to it. The 2nd and 3rd batteries although slightly better only achieved 22 and 18 days but guess that's because at that time I was also using the Enlight sensors. Having stopped using the sensors (self funding so cant afford it) I have to say that the next 4 batteries after the sensors lasted 26, 24, 21, and 26 days, with the current one on its 14th day so in total I have used 8 batteries in 5.5 months, which no doubt will make 8 in 6 months if this one last another 10 days.
Certainly is you average out the last 4 batteries it look like the standard AA Medtronic supplied batteries will last about 24/25 days each for me so will need about 15 to get me though a full year which I don't thinks really that bad, Yes my old Veo lasted far longer than that but hey it did not have as many bells and whistles at the new 640G has.
As to cost of the batteries I have no idea as they are funded by the NHS like all of the Medtroinic spares and the price doesn't show up when ordered on-line, but no doubt as
@CarbsRok stated above I bet its way more than if we were to purchase them.
Good luck in 3 days
