My new controller briefly goes to bulk then straight to absorption.
any suggestions?
see screenshot
The mppt is working fine, it is in absorption because the voltage will be at the target of 14.4V. Bulk stage is skipped because of this.
The reason this is happening is in your screenshot, you have 14.4V at the exit of the mppt but only 13.3V at the battery. You are losing 1.1V in the wiring. Wiring too thin, too long, poor connection, cheap breaker like the ones shown. Check your wiring vs the manual and for tightness, swap cheap breakers for fuses.
As an interim measure, you can set up a VE Smart Bluetooth Network between the smartshunt and the mppt and the mppt will increase its voltage to compensate. This is a sticking plaster, not a solution, check your wiring.
I have no breakers no fuses. All connections are tight. Wires are a little long 30 ft small gauge. I have set up the VE Smart Bluetooth Network. Nothing changes. I have a Victron Energy Smart Battery Sense, Voltage and Temperature Sensor coming tomorrow. If that doesn’t work I will get heavier gauge wire for battery connection. Thanks for your help.
I have no breakers no fuses. All connections are tight. Wires are a little long 30 ft small gauge. I have set up the VE Smart Bluetooth Network. I have a Victron Energy Smart Battery Sense, Voltage and Temperature Sensor coming tomorrow. If that doesnt wotk I will get heavier guage wire for bat
Well I added a smart sense to the network which reads 13.11 v
but the controller voltage is is 13.52 which is why its in float. Wires fron controller to battery is appx 30’ 10 gauge all good soldered connections. not sure what to do next?
30ft between mppt and battery or 15ft and the quoted 30ft is both ways. 10 gauge really is too small for your set up and rated for less than the mppt output. This controller can take significantly larger wire, there is a reason for this.
You should have it fused at something like 30A at the battery for short circuit protection for a safe install.
Search for a 12V voltage drop calculator or look for the Victron Toolkit phone app and work out what you cable you need and swap it out. Then the system will work better.
I have no idea why your VE Smart Network is not working, post a screenshot showing which devices ate connected. You need to do more than just connect the devices to VictronConnect.
Yes I have done more that just connected devices to victron connect. I have created a network and have connected them together. the screen shot shows all 3 devices connected to the same smart network. I have had a 30amp fuse connected at the battery and from panels to the controller but have temporarily removed until this problem is fixed.
Brought the controller inside next to batteries, used wires to battery to extend panel wires to controller. Everything working fine
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