Hey,
I’ve had an AIO system now for a few months. Apart from a complete system failure whereby the AIO was replaced by givenergy it has all been plain sailing.
Unusual in these few months there have actually been a handful of power outages, which is genuinely weird.
For the outages that happened during the day while the battery had charge and was actively supporting the load, potentially with the solar helping to various degrees, tonight, just about 20 minutes ago the power went out after the battery had long already discharged to 4%.
With EPS on or off I can’t set the discharge limit lower than 4% so I had assumed that 4% was a mandatory reserved amount for EPS. It isn’t.
EPS has always been on and I’m now sat in the dark with an AIO system online and operational with 4% battery left and no way to use it. The WiFi and internet connectivity is supported by an actual UPS so is still working normally, glad I kept that stuff.
Why am I wasting 4% of my AIO battery?
Mike
Hi Mike
I don’t have an AIO, but the 4% isn’t the reserve - it’s there to protect the battery from fully discharging which apparently isn’t good for it.
If I understand correctly, you will need to set a reserve at a particular percentage, say 10 - 20% for example, depends what you think you might need.
This will mean that your battery will not discharge below the level you set unless there is a power cut. By setting a reserve you will of course reduce the amount available for normal daily usage (as the battery won’t discharge below your set level).
Hope the above makes sense – others on here with an AIO or more knowledge should be able to help further.
Good luck
Mark
I agree - the 4% is to protect the batteries.
What they “should” be doing is using the firmware to hide this… we already know that the 9.5KW batteries are technically more like 11KW - but that that is there to protect the 12Year lifetime.
So what they should be doing is changing this so that 4% is Actually 0% and 100% is actually 90/95%.
Smoke and mirrors !
But if you have 4% then really you should be able to use it in an emergency !
Thanks both.
Also agree that what we can’t use shouldn’t be visible. It’s the way even my 8 year old EV handles the situation.