Apology accepted. Even Homer nods.Apologies to the OP...I should have read the post more carefully....It would be nice if everyone used the same (SI) units though. It would make things easier........ Like that's going to happen any time soon in the UK where we buy fuel in Litres, measure distance on the roads in miles and talk about fuel consumption in MPG...which is of course different to the US MPG.
![:roll:]( "Rolling Eyes")
It always seems strange to me that in the automotive/marine world that battery capacities are generally rated in Ampere Hours rather than Joules...or even WH...So a calculation is required in order to compare capacities with other types of battery......and don't get me started on Peukert's law!![:roll:]( "Rolling Eyes")
....... Like that's going to happen any time soon in the UK where we buy fuel in Litres, measure distance on the roads in miles and talk about fuel consumption in MPG...which is of course different to the US MPG. 
Personally, I really dislike rating battery capacities in Amp-hours. In the case of powerbanks it's used to disguise the fact that the energy capacity in Watt-hours is at the cell voltage of 3.7v (nominal), rather than at the 5v nominal output. This in turn leads people to overestimate what the battery can actually deliver. So any time I have to run through the calculations for someone who wants to run a Pi from a battery, I show the math converting power to Watts and energy to Watt-hours for consistency.
Statistics: Posted by W. H. Heydt — Wed May 15, 2024 12:33 am