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Charge and Discharge rate

Posted: Thu May 28, 2026 8:58 pm
by NormC
After installing the latest version of the GivEnergy app I noticed that the battery was not charging at full rate.I checked the GivEnergy Inverter Monitor app and it said the Maximum Rate was 50. After using the GivEnergy app to check the rate it said it was 50%. I changed the rate to 100% and checked the GivEnergy Inverter Monitor app and it said that the Maximum Rate was 100%.
Inverter_monitor_charge_discharge_rate.jpeg
Inverter_monitor_charge_discharge_rate.jpeg (84.41 KiB) Viewed 8434 times
GivEnergy_app_charge_discharge_rate.jpeg
GivEnergy_app_charge_discharge_rate.jpeg (69.92 KiB) Viewed 8434 times
This is the screen I see if I try to adjust the Charge / Discharge rate using the GivEnergy Inverter Monitor.
Inver_Monitor_adjust_charge_screen.jpeg
Inver_Monitor_adjust_charge_screen.jpeg (78.41 KiB) Viewed 8434 times
Is this likely to cause a problem?

Re: Charge and Discharge rate

Posted: Fri May 29, 2026 12:59 am
by RubikCube
It won't cause a problem.
Registers 111 and 112 are for charge are discharge rate.
Registers 313 and 314 are for charge and discharge rate.
Yes, they are for exactly the same thing!
What they do, which one is used, and how they work will depend on what equipment you have and the firmware it runs.

My gen1 system only has 180 registers, so the first set control the power. They can be set to any value from 0 to 65535. Any value above 30 is full power on my system.

Trial and error is the best way to find out how your system works!

Re: Charge and Discharge rate

Posted: Wed Jun 10, 2026 12:24 pm
by Thegreatroberto
Hi

Longish term user of your app and recently noticed that my charge rate and discharge rate have "odd" values now. i.e. 16. I have an AC3. However, this "16" is not surprisingly shows a similar number. (reg 111 has a value of 16%, and the slider shows 16%. But my inverter charges at full power 3.3Kw). Any ideas ? I am reluctant to change thisreg to 100% !

Re: Charge and Discharge rate

Posted: Fri Jun 12, 2026 1:51 am
by RubikCube
As I understand it the calculation of charge/discharge rate depends on the capacity of your batteries. I have no idea why!

If 16 is giving full power, then any value above that will also give full power. It doesn't do any harm to set it higher, just doesn't give any benefit either.