[TechniSol]

I did a test a while back with my Glo and got around 46.5 hours of reading time with the light on the lowest setting, or possibly one setting higher, if I recall correctly. This was on the version of firmware before percentages were displayed, 2.4? or 2.5?... The posts I made were in the thread concerning higher battery drain on the Glo in sleep mode to present a baseline for what one might expect with a Glo not suffering the higher power drain during sleep mode issue. The eventual conclusion seemed to be that some people having the problem were having an issue with something touching the screen, or at least interrupting the IR above it, before the unit finished going into sleep mode. My theory was that the neonode hardware was then not shutting down due to being in the middle of sensing a "touch" event.

It might also have to do with an outside factor, like if one assumed the Aura was more likely to be purchased by people requiring larger type fonts one might also make the correlation that they might crank the brightness up higher to get more contrast or somesuch... I'm not suggesting that is the case, just spitballing.

Area-wise the Aura has a larger screen, but not double I don't think, haven't done the math. It's probably safe to assume it takes a slightly higher LED output and higher current consumption to make it appear to be lit at the same brightness level as a Glo if the light has to travel further through the same light guide/diffuser material from top to bottom at a slightly longer distance... Could also be more stuff going on in the firmware running on an Aura, though I would suspect the latest firmwares for the Glo & Aura might be about the same in terms of internal branching, of course the screen driver might be a bit different since with the greater resolution it does have to push more pixels. The greater number of pixels might lower battery life a bit as well, but with the bigger battery you'd think it would still kick the Glo's butt.