Recent content by kta22

Other issue I've been observed these days is that when I'm charging the car(7.2 kWh) and mppt's are in float mode, the smart shunt reading is displaying a low charging/discharging current (to keep 53.6V float voltage), but in fact the real current (charged discharged) from battery is arround...

You're right, could have been there for Growatt, data sampling is one very important aspect.

Thank you for the details, I guess in the end it will not matter so much as I'll be close to 1260 Ah.

It's a bit strange because I previously had 2 Growatt's(SPF 5000es) in parallel and I didn't notice any kind of voltage or current overshooting in terms of battery charging. May be due to different software control and may be due to high frequency inverters.

Thanks.

Can be somehow adjusted/solved ?

I'll try once more to connect/disconnect high load under float to observe the behaviour.

Hi, I'm having this Victron configuration : 2x Multiplus II (5000VA) single phase ( parallel) + mppt rs450/200 + cerbo gx + Lifepo4 560Ah + smartshunt which is working good. I've activated DVCC function in Cerbo GX, with a low 26A battery charging current, but when I'm having a transition from...

Back to you, I found the cause -> loose 200A fuse (inside mechanism) on the battery. Best Regards

I assume that having those 2 battery packs not perfectly balanced ( first pack is charging faster than second one, thinner wires from battery pack 1 to battery pack 2, thinner than ones from inverters to batteries) is inducing this oscilating effect. I noticed firts battery bank is charging...

Hi, I'm using 2 Growatt's SPF5000ES in parallel (1 phase out) and charging 2 packs of 48V (LF280K) with JK BMS. Bateries are in parallel as well. GW2 is currently charging battery banks with bulk voltage of 54.2V, which is working fine. But when it enters to float mode( 53.5V), there are some...

Hello to all, seems that after BMS & Growatt parameters update(~11:00) on your recommendation, my system start to work as I was expected from the begining. Thanks

Thanks for useful information.

Thanks!

Thanks for support, you're right, it's more clear now for me!