Slow battery drain

HiI
I've had my system newly installed. is it normal to have the battery set to "timed not to discharge during set hours" but the battery will still discharge constantly at around 77w despite no change to power need?
e.g power needed for the home 500w it will pull 423w from the grid and 77w from battery.
So after 13 hours the battery has lost nearly 1kw that i wanted to store.
Also if i pause the charge/discharge from the home screen app this will reduce to say 35w.

any thoughts or is it normal quirks of the system?

What kit do you have (panels? battery? inverter?)
What tariff are you on?
What are you trying to achieve by storing energy?

I think there are other posts on here about the battery having to power it's motherboard/controls

i have about 8.5kw of solar. the 5kw hybrid inverter and the 9.5kw gen 3 battery.
i'm thinking of moving to a flexible tariff but, were high energy users when its peak times (4-7pm) so if can figure out the drain issue. It would help figure out if I can store 2 days worth of peak time power when we get little sun in the winter.
as i know you can really save on the flexible tariffs but I have also been stung when demand goes high for a while and the rates just hit 99.9pkwh.

Try HomeAssistant (Rapberry Pi) running Predbat (free)
Predbat looks at your tariff, your historical energy use data and forthcoming solar predictions and decides the best/cheapest plan for you and implements it. It recalculates every 10 mins or so. You can set any parameters that you want to fix like min SOC%.
I think there is even a web/subscription version now, if you dont want the hassle of setting it up yourself

My dashboard.

icedcar as i know you can really save on the flexible tariffs but I have also been stung when demand goes high for a while and the rates just hit 99.9pkwh.

There are all sorts of different tariffs available and no single one will suit everyone. The 99p is Octopus Agile which hit that figure a couple of times last winter when it was really cold and overcast for days on end, demand was high and there wasn’t any solar or wind. I was on Agile the time and it wasn’t great, but my battery (and predbat) took me through the worst of it

It all depends on what your daily house load is as to what’s suitable. I wouldn’t make any assumptions about winter solar, any you get will be a bonus, and plan on what load you can shift to offpeak hours (washing, dishwasher, etc) and what you need covered by your battery and cheap rate grid import.

If you don’t have an EV or heat pump then your choices are more limited, Tracker is an option as is Economy 7. Even if your batteries won’t last all day and you have some grid import, a small amount on a higher tariff won’t be too bad.

And yes, the battery drain is quite normal. Bear in mind the drain is covering the inverter and the battery (DC to AC conversion). You can reduce the drain further by setting battery pause mode in the givenergy portal, but some drain is unfortunately inevitable.

In winter I go to Eco7 import and fixed 15p export. Any solar I get really just tops the battery up. (in summer I use Flux as I get the high export rates and do have excess solar to sell)
Predbat will top me up tonight off peak and keep the house going on off peak as long as possible. Then the battery will take over

icedcar I also have 5kW hybrid inverter. When using timed pause, it usually reports 28W drain. Turning eco off does drop it to zero, but there's no built-in timer to do that. (There does seem to be an interesting feature of current firmwares where a minimum SoC on a timed discharge slot can act as a timed reserve, even with timed export disabled. So could program a stepped sequence of reserve levels to honour as 4pm approaches.)

Tariffs with an expensive 4-7 slot tend to have a cheaper slot at some other time - have you considered just recharging battery then? If you're happy to import from grid earlier in the day to preserve charge, is that any different from actively charging the battery then, in order to discharge between 4 and 7 ?

icedcar as i know you can really save on the flexible tariffs but I have also been stung when demand goes high for a while and the rates just hit 99.9pkwh.

I wonder if you mean "smart", rather than "flexible" ? I think flexible is just their standard variable rate ?

geoffreycoan Tracker is an option as is Economy 7.

Don't think they have a 4pm-7pm peak? I think Cosy, Flux, IOF and Agile have the peak ? And I guess only Agile goes up to 99p

DD geoffreycoan Tracker is an option as is Economy 7.

Don't think they have a 4pm-7pm peak? I think Cosy, Flux, IOF and Agile have the peak ? And I guess only Agile goes up to 99p

that’s my understanding, those tariffs have a 4-7pm peak period, Agile can go up to 99p, and did a few times last winter. In fact it hit 60p about two weeks ago when I was on Agile still, but my batteries saw me through then.

Tracker is a single market driven rate for each day (no peak or off-peak periods), and can also go up to 99p as well I think, but in practice never does.

EV tariffs Go and IGo and Economy 7 just have the overnight cheap and single rate for the rest of the day