Hi all,
I’m having an odd issue with my MPPT Chargers seemingly limiting charge current. My setup is as follows:
Epever Inverter (Don’t think this is relevant - not compatible and not connected)
Cerbo GX
2 Smartsolar 150/35 MPPT
1 BlueSolar 150/35 MPPT
Seplos Mason Battery (with Seplos v2 BMS)
All charge controllers and the BMS are connected to the Cerbo, and showing all information
I had an issue whereby my battery ran down to 0% (I forgot to reconnect a 48v charger I have) overnight, and ever since then my charge seems to have been limited to ~40amps (3kw). This wasn’t the case beforehand - I was getting a peak of over 4kw.
Each charge controller is connected to 4 x 410w panels (so max output of 1640w in 2series x 2 format). As one of the charge controllers is ramping up to 1300-1400w into the battery, the other two controllers are lowering their outputs.
I’ve tried disconnecting one of the controllers, and the 2 remaining ones are ‘limited’ to 2kw (one at 1300ish and 1 at 700is) at that point - so it’s as if the system is limiting itself to 'num of chargers x 1kw).
The Cerbo is running the latest firmware, doesn’t have DVCC enabled (I’ve tried switching it on and giving it a higher charge limit, but no change).
The Cerbo is showing the CCL from the BMS as 100amps.
All charge controllers are showing as being BMS controlled, both on the config of the Cerbo, and within Victron Connect.
It does it no matter what the charge level of the battery is, and I’ve been banging my head against a brick wall for a while now.
Anyone have any ideas? Literally only started doing this after the battery ran down one night. The only thing I’ve not tried is turning off / on the battery.
Thanks in advance,
Leigh