Recent content by jwu_cc

Multi vs Quattro - The biggest drawback with 2 Multis IMHO is you would need to balance the load on two phases yourself, while with autotransformer it does that for you as long as the imbalance current is within the spec. Otherwise, I think either way should work fine. Note that Victron has the...

Any BMS that supports 6S Li-Ion cell should work for Model S battery module. Victron Multiplus working better for these modules is due to its lower cutoff voltage, which would allow you to use more capacity out of the battery, same as the Sigineer inverter listed above.

Yes, I just realized that I did not specified where the Grid Profile was set at. It's set on the microinverters and you do need to have Enphase Envoy to configure that. I have LiFePO4 and you are correct that the assistant will only kick in when the voltage is close to the top range of the...

I have a similar setup but smaller running now (inspired by what @tanoshimini posted) for about a month and so far it's working great. I have 2 Victron Multiplus 24/3000 (split phase configured) AC coupled to 6 435W panels with IQ7As. I'm also DC coupled to 8 300W panels and 4 435W panels...

Are you charging with the Noco charger shown in one of the photos? If so, you need to connect the negative clip of the charger to the stud of the smartshunt that's further away from the battery. Otherwise smartshunt won't pick up the charge current. I think MT50 probably just uses the battery...

Do you have a link to your Daly BMS ? Also, did you leave the 13th cell tap open ? If the BMS does indeed support variable number of cells, it should indicate how to handle the extra cell taps in the manual. Generally it would leave some of the middle cell taps open, instead of the most positive...

Are you sure you can use Daly 13S BMS with a 12S battery ? It may not be functioning correctly as it's expecting a 13th cell voltage. Also just want to confirm that your BMS is configured for Li-Ion and not LiFePO4.

Would a transfer switch like this one work for you ? You can add an inlet on the exterior wall of the shop to connect to one side of this switch, and rewire the grid input that powers the panel currently to the other side, then feed the output from this switch to the panel. You can use an power...

Check out the Newpowa 24V panels, they are under 40V Voc and 210w panel is less than 7A Isc.

I have ~10 Victron SCCs from 75/10 to 250/60, and I've not had any issue with them, so they are very reliable and well built. Also I love the data collecting capability that Victron ecosystem provides, which is accessible anywhere in the world via VRM portal if you have it set up. One thing to...

Aeotec has a Zwave current sensor and you can connect it to your Zwave hub locally without going over Internet: https://aeotec.com/z-wave-home-energy-measure/. There'll be a bit more setup work but you get more control over the collected data.

Sigineer does have some inverter/charger that cuts off at 18V to support Tesla battery modules: https://www.sigineer.com/product-category/inverter-chargers/tesla-battery-compatible-inverter-charger/. There are a few rebranded ones on the market as well if you want to shop around for price or...

This is the VE Bus smart dongle needed for monitoring Multiplus in VictronConnect: https://www.victronenergy.com/accessories/ve-bus-smart-dongle

Yes, that's basically the idea. You want to parallel connect the cells with the same voltage together. Do make sure the cell voltages from both batteries are similar before bundling them together so you don't get fireworks unintentionally. ;)

David has a great video on how to do that on his YouTube channel