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You should follow the specifications for your battery. If the charge or discharge is out of spec, you should not allow it. This is how you destroy batteries and/or start fires. Don't pull more than your maximum safe AMPS from the Sigineer and set the Charge Rate on the Sigineer to less than...

It's super important to protect the batteries with a Battery Management system to watch your draw, charge as well as low and high voltages. L-P-G is running a smart BMS to let him do that kind of thing. A good BMS will allow you to monitor all those numbers and not solely rely on a...

That board looks excellent, I will absolutely grab one. Most of the Chinese inverters out there use one of a handful of "brains" in the form of a little board that does all the magic. There were a few that made it look possible to adjust the frequency using an external source to compute the...

HATS: Current Analog to Digital is the Abelectronics ADC Pi. Decent and you can add a male header to let you stack another. The first version I used a nice small stackable 4 relay board, but soon realized I needed to talk to more than 4 relays. Currently using the "ebay/amazon special"...

Thanks for the reply L-P-G. I figured that having the Raspberry Pi flip Dip Switch 1 (AC Priority/Battery Priority) and the Battery Charge Rate Selector (As you did) would let me do all kinds of fun TOU/Arbitrage/Weather/Event overrides (much as you are apparently doing). It talks to the...

L-P-G Thanks for the awesome writeup. I have a nearly done project very similar to yours with some fun features in a Rpi controlling SimpBMS on my Tesla modules and a Solaredge Grid-tied Inverter behind it. You specifically call out using a contactor you added to the Signeer to take it off...

Ahh there is my misunderstanding. I had read a statement from Tesla mentioning they had all the technical expertice to do their own inverters, and thought they were using the PW2 as their own Solar Inverter (High voltage DC from panels or battery pack is reasonably similar to convert).

Miimura - You misunderstood, my thought is not to give DC voltage to the Solaredge Inverter, but give DC (From a generator or similar source) directly to the PW2. They are supposed to have the ability to act as the primarry solar inverter so they must have an input. Your solution of the...

Existing Solaredge Solare user, very happy with their system and planning on AC coupling a battery (PW2 or other). With a recent update to the Solaredge firmware, the inverters support AC coupling and you can define the production based on frequency shift from the battery inverter (in this...