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BSC IP65 question. Does the app show the actual status AH of the battery? When fully charged or at beginning of the charge. I see that the Ah put in during the different charging cycles s reported. On the left side history page there are two markers; 41.1 Ah and a 20.6 Ah. Then in the cycles stack graph on the history page there are different measures of Ah noted in the bulk cycle and abs etc. So the question is at any time can I check the current total Ah in the battery?
Hi @skippytrent
No, unfortunately this is not possible. Therefor you would need a battery monitor like a BMV or SmartShunt. What you see in the history tab is the amount of Ah charged and maintained (float, storage) into the battery during the charge cycle.
The different readings show the amount of Ah for each charging phase.
Bummer. I thought that this would be a basic feature! So this would seem to be a very basic but important function of such a sophisticated app and charger; percent to total charged capacity at start and completion of a charge cycle. It reports lots of Ah information through the various charging cycles. ie if the bulk charge goes to approx 80% how does it know that it is at 80% capacity? 80% of what total?
As explained above, what you want requires a shunt which measures ingoing (and outgoing) amperage. Together with information about certain battery parameters (e.g. capacity, peukert etc.), this can be used to calculate the state of charge.
This is not a function that a charger of any kind can perform.
It reports lots of Ah information through the various charging cycles. ie if the bulk charge goes to approx 80% how does it know that it is at 80% capacity? 80% of what total?
This is an empirical value that comes from lead-acid batteries and is mostly true when the absorption voltage is reached. Each lead-acid chemistry behaves a little different. For lithium batteries, it is somewhat completely different.
As you might imagine, this is a more complex topic than a simple charger can provide ;-)
