hp50g and power bank

[Dieter]

(03-27-2017 10:14 AM)pier4r Wrote:  Did someone try to keep the hp50g coupled with a power bank to handle intensive computations? (this because my 4 AAA batteries, ~700 mAh each, last very few hours and the calculator always complains about low battery)

If your 50g runs "very few hours" (say, 3 h) on a set of 700 mAh NiMHs this means that it permanently draws a current of something like 200 mA or more. Which sure is not typical. But then you say the calculator constantly shows a low battery warning. Both symptoms make me believe that the problem is at least one of your batteries.

I think you should try a set of quality (!) single-use batteries and see how long they last in your 50g. If this works fine simply get a set of high-quality NiMHs as well as a suitable processor-controlled charger. There have been several threads with recommendations for this.

What kind of batteries and what charger do you use now (manufacturer, exact type)?

Dieter