Battery charging

Why does my battery stop charging when it gets to 98%?

Also the battery feeds into the National Grid. Is this correct?

Post an image of your energy flows graph and your settings so we can see whats happening and give you an answer. Without these we would only be guessing. Having said that unless you want to force a charge from grid or discharge to grid make sure ECO mode is ON. Eco mode is called 'Dynamic' in the app.

This shows solar panels going to home and grid not battery.
Settings are dynamic.

At the top and bottom end of charging the charge current requirement is low. This is common to most battery chemistries so you will at least see export when generating that sort of current when the is almost full and the house load is low. Could you pop into th portal and post the full flows graph so we can se where your battery has been in the last 24 hours?

Is that what you want?

This show so the battery discharging to the grid.

Not really. The margin of error with the numbers will often show this sort of thing, 2w is tiny. for example the above shows 1.19 generating and 0.816 discharging equals 2.006. Load is 2.00 so there is 6w unaccounted for but 2w going to grid. The battery % shows it got to 100% and will drift from there but at some point will drop enough to kick in a charge if solar is there and it's grater than load.

New to all this! So, even though the battery is not at 100%, the solar panels with feed the grid and not the battery until it drops to a low enough level to kick in again.

Collie_dogs Yes. You should know that the SOC (state of charge) of the battery is a science in itself and has a large number of dependencies. 100% cold is not the same as 100% hot, for example. The BMS is currently being updated to improve performance and accuracy and it's been a long arduous task.