Just 200 days ago, I Ioaded SKY and AIR with new, cheap, supermarket, alkaline batteries, at about €0.17 each. They worked fine.
Over the last two days, ALL the variables from both devices were flatlining. I thought that 200 days were reasonable and perhaps the time had come to have a look at the voltages:
On list 2.93
Between gold-plated electrodes 2.943
Individual cells 1.471 - 1.472 (open circuit)
On list 2.63
Between electrodes 2.625
Individual cells 1.313 - 1.316
Nothing out-of-the-ordinary there, except that, at 2.63 V, I would not have expected flatlining . However, I decided to change the SKY batteries. The new ones gave 3.18 V on the list and 3.192 on the electrodes.
Cost: 12 cells/6 month @ €0.17 = ~€4.10/year against ~€14/year for recommended batteries: no brainer if one doesn’t mind changing them twice/year.
Question: I’ve seen on some sites that the battery voltages are displayed on the list of variables on the Android device and/or in Windows. How do I get these to display? Sorry if I’m a plouc!