That does explain the strange fluctuations during the longer hold periods.
Battery would kick in and out at 'random' intervals.
That isn't a problem for my normal use but tonight the EV will be charging so I will see if the hold feature preserves the GE battery and forces the EV to charge from the grid during the hold periods.
admin neighboring-volume
What data do you want to see from the GE inverter logs?
johalareewi Just wanted to see we sent the right instructions really. But it looks like we did from your graph, so thanks for that.
Yeah, would be interesting to see how the instruction to keep SOC at the current percentage will deal with the EV charging.
admin But maybe we should explore 'pausing' the battery and reducing discharge rate to 0 if we can.
The GE mobile app has a quick button to stop battery charge/discharge.
Guess this sends a command to the inverter so it should be available to wonderwatt via the API.
GE quick buttons allow
Force battery charge
Force battery discharge
Pause battery
Play (restore normal use)
johalareewi Can you Pause and then Play again a minute later and send us the Giv logs please when you have a moment?
admin Will do.
Another option could be to drop the desired SOC to a lower value than current SOC and leave the system on charge.
If I set the GE inverter to charge to xx%, when the SOC reaches it, the inverter puts the battery on hold until the end of the charge period.
Here is an example. The charge period is 01:00 to 06:30 to 100%. When battery reaches required SOC, it gets paused. Charge period is still active so inverter doesn't start using the battery until the end of the charge period.
johalareewi Hmm, that's kind of what we're aiming to do. But perhaps setting to current SOC doesn't quite achieve that?
Also, not sure whether this works with all Giv inverters in the same way?
admin Can you Pause and then Play again a minute later and send us the Giv logs please when you have a moment?
Here goes. Battery was charging. I did a pasue on the app and battery stopped charging (and discharging). Then did Play to resume everything. Is this what you want from the inverter log?
johalareewi Where on the Giv app do you see the quick Pause and Play buttons?
johalareewi Ace, thanks for that - I think it makes sense to change our 'on hold' to effectively do the same for Giv.
We'll run some tests and get a patch out.
admin Where on the Giv app do you see the quick Pause and Play buttons?
Big round green button at the bottom.
johalareewi Ah - Preferences, 'Show Quick Settings Button' wasn't enabled/toggled on, thanks!
For Giv users, the hold-charge has now been switched out for actual battery pause functionality. Just deployed, version 380.
I can report that last night I used hold from 12am till 6am with a few charging slots in between. The first hold between 48 and 51w dribbled through, 0-3w with the other holds 
admin Seems to be better. Last nights results...
Do you need to do the Battery Charge Power changes because you are using timed slots?
Do you need to do the Battery Charge Power changes because you are using timed slots?
Yeah, it's effectively the same as using the Pause button on the Giv app. It's to make sure that during the hold charge periods, there isn't any fluctuation of 100W here and there, which does happen if you're keep AC charge target to current SOC.
admin it's effectively the same as using the Pause button on the Giv app
The app pause button pauses charging and discharging but for the WW hold feature, you just want to pause discharging so you could just change the discharge settings and leave the charge settings alone.
It's interesting that despite the discharge setting being zero, there was still some discharging (a few Watts). Couldn't test the EV bit because the EV charge was during selected slots only. One night it will happen..
The app pause button pauses charging and discharging but for the WW hold feature, you just want to pause discharging so you could just change the discharge settings and leave the charge settings alone.
Right, but equally we know we don't want the battery AC charging during hold-charge either, right? So not sure it matters much tbh. Unless I'm missing some elaborate scenario?
admin Its just that on the screen it says it prevents discharge.
Although HOLD implies no charge or discharge.
It is also interesting that the HOLD instruction is sent at the start of the first hold slot but is not released until the end of the charge window (see my inverter log). I would expect the hold to removed at the end of each hold slot block.
