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marshman wrote: ↑Mon Oct 04, 2021 10:26 am Forgot to add/ask. With the ME3000SP can you program it to do what you want in terms of when to charge/discharge and when not? Is it easy to manually overide it as well? i.e. look at the weather forecast and decide to charge overnight on E7 or wait until next day 'cos you think it will be sunny and PV will take care of it?

So first of all you really need at least 3 of those batteries or else you will be current limited with the battery inverter. 3 or more, allows the full performance of that battery inverter in terms of both charging and discharging.

It will do what you want in "Time of Use Mode". You can manually override it, but it can be a bit of a faff. There are 4 rules you can have for different times on the year. If you want to run more than one rule on the same day you need a special software firmware version v2.41.

Some others have used passive mode and built their own controller via a raspberry pi or similar.

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