Hooked up my blue smart charger today, IP65 12v/15a, did the firmware update, it’s not showing any errors, it’s just doing absolutely nothing to charge my batteries. It seems many have had problems with these chargers just not working. Trying to fill out a request for help/replacement, but can’t remember the firmware update number they are requesting. So frustrating. Anyone know the latest update number?
In both the screenshots is shows a 13.54v outputs and current of 15A .
Did you check with a clamp meter and find its not doing that?
While the BMV is showing only 8.59A it could mean anything here like you have DC consumers that are using the other 7A.
Or not everything is connected through the shunt?
as the mppt is also showing 14A output so that is a combined 29A of current but 8 to the battery?
Are you sure everything is wored right and you don’t have issues? Where the heck is all your power going?
Currently charging through my solar panels. That’s why it’s showing the amps it is. The charger isn’t adding anything. Getting the help of a solar installer friend, but he’s at a loss as well, which is why I’m guessing I just need to add mine to the growing pile of these that failed and had to be replaced.
Currently just have my fridge plugged in (.8a), a printer, and my 3000w inverter draws some power too.
The MPPT outputs 14A, the AC charger outputs 15A, which is 29A combined, but of those only 8.5A are actually charging the battery.
Whats brings you to the conclusion that the charger is doing nothing? If you disconnect it from the AC, does your Shunt now say -6.5A? If so, then it was charging at 15A.
At those 8.5A that make it into the battery, it will be full in about 27h. If you want faster charging, reduce the DC load or get a bigger charger
I was wonder as well. The figures are off.
Maybe the BMV needs a zero current calibration.
Verified by what?
But before that verify with a proper meter.
Should have the kit to do so. Clamp meter the cables.
Eliminate this. Cant toss a product because troubleshooting hasn’t been done correctly.
It charged 25AH so it is working.
What loads are on the inverter.
Maybe switch off all your consumers while testing.
Its going to have to be approached in a step by step logical manner.
Did you run the -ve of the charger’s output through the shunt?
The charger certainly appears to be working as shown in all your screenshots, but from the sensed voltage it’s displaying, it looks to me like it might be connected directly to the battery rather than with the -ve run to the “loads and chargers” side of the shunt.
Sure, but the question remains: is the -ve of the charger’s output correctly run to the “loads and chargers” side of the shunt, or do you have it connected directly to the battery?
Which is wrong. For the Shunt to measure a current, said current needs to pass the shunt
You need to connect the chargers negative to the negative busbar. Then let the batteries fully charge, since the SOC is now way off
Yep, there’s the issue.
Correct the installation as show by @chrigu and go from there!
Thank you, I will redo.
Problem solved. Hooked to bus bar, now charging.