hp50g and power bank

[pier4r]

(04-05-2017 08:18 AM)Dieter Wrote:  Facts are often helpful. ;-)
What about these ones in a comp.sys.hp48 thread? Or that one (be sure to read more than just the first posts, especially consider the one by Joe Horn).

Nice threads! I'm reading them.

Oh, the reply from Joe Horn to Andreas is pretty, ehm, direct.

Ok, so with a current consumption of round about 70 mAh, assuming that the power is drawn from the USB and being conservative on the powerbank 2200 mAh, saying that only the half is available for real usage, it should last more than 11 hours.

We will see. The current iteration is 142 of 1000 and then one 1000 more has to be computed.

Side note: in small communities that revolve around a common interest one finds always those few individuals able to provide good "old" contributions that otherwise are scattered around the web (until they are loaded somewhere). Every time those contributions are dug out from the archives, the community could collect them in a sort of resource list for newcomers, otherwise all the work (and knowledge) will always be on the shoulder of those individuals. Sure, then there is a problem of "which contribution qualifies for the list of contributions?". Anyway, I started in 2013 and when I find something neat I try to remember to add it here: http://www.wiki4hp.com/doku.php?id=resou...iscussions


Update: ok with my poor charged batteries (for the batteries see here: http://i.imgur.com/ps0ek1t.jpg ) the 50g lasted round about 4 hours of 100% cpu, then stopped the computation saying "low batteries". I verified and the power bank was not used, because I could not power on the 50g with only the power bank. I checked the cable and was not totally inserted on the side of the powerbank, so now it should work with just the powerbank, although the batteries are still inside (but should not help, plus, from the threads linked by Dieter, we know that the 50g uses the USB power when this is recognized ).
With only the powerbank in a conservative estimate (only 1100 mAh usable), I would consider at least 11 hours of 100% cpu use.

update2: ok the powerbank failed. Somehow it is like the power drained by the 50g is not enough, and the powerbank stops providing it and the 50g went off). So it last for half an hour and then it closes. Trying a 10000 mAh (estimating a 5000 mAh usable) now.

update3: the 10000 mAh is holding the hp 50g open so far (it has only 2 batteries out of 4, so cannot be that the batteries are used, moreover the batteries are already recognized as exhausted). 2 hours are passed and the iteration is 387 out of 1000.