hp50g and power bank

08122018, 10:33 PM
Post: #41




RE: hp50g and power bank
Yes the eneloops are sitting on my desk since two months. Note that the calculator I use are mostly connected to usb. The batteries are there when I switch them as I have more calculators than usb ports, leaving one in standby without connection for some time. So even "poor" batteries may help in my case.
And I was mistaken, yesterday I got the parcel and it is a BC700. The BC1000 costs a bit more. Wikis are great, Contribute :) 

08142018, 05:22 PM
Post: #42




RE: hp50g and power bank
(04302017 06:54 AM)pier4r Wrote: While reading the general forum I found another interesting post What were written at post #6. ... I told you. *hehehee* 

09092018, 10:49 AM
Post: #43




RE: hp50g and power bank
Dieter!
The BC700 is awesome. If one has no experience of a product one may really miss something out. The charger offers so much data to reflect on. Also likely has a PCB inside it that has hardcoded algorithms to test capacities and co. I would really like to know them. It is amazing what it offers. I used multimeters to determine voltage & co, but I couldn't dream to test a battery. Does anyone know which algorithms or procedures the BC700 uses to determine the following?  the capacity of a battery (with charges, discharges)  estimate the current charge Wikis are great, Contribute :) 

09092018, 03:38 PM
Post: #44




RE: hp50g and power bank
(09092018 10:49 AM)pier4r Wrote: The BC700 is awesome. If one has no experience of a product one may really miss something out. The charger offers so much data to reflect on. Yes, there's quite some features to play with. ;) (09092018 10:49 AM)pier4r Wrote: Does anyone know which algorithms or procedures the BC700 uses to determine the following? I think the only one who really knows this is the manufacturer himself. But determining the charged or discharged capacity is trivial: it's just the integral of the current over the charge/discharge time. So if you take a current reading every, say, 10 seconds, just add these values in mA and multiply the sum by 10 / 3600 to get a mAh result. Dieter 

09092018, 06:54 PM
Post: #45




RE: hp50g and power bank
yes I am not expecting the precise formulas but an approximation.
Wikis are great, Contribute :) 

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