Victron 75/15 issues.. (1 Viewer)

[bluesurf989]

Hi all.
I have recently installed a victron 75/15 mppt solar controller and battery master. I checked yesterday and it was showing 13.2v on leisure batteries and 12.9 on starter in the full sunshine! Both the green light and the amber light is flashing on the controller.
Any help much appreciated

 

[Robert Clark]

What readings were you expecting?

Looks like the leisure batteries are in ‘float’ having been fully charged.

The engine battery is also fully charged. It’s worth remembering that the battery master is not a battery charger it’s job is to trickle a small amount on electric into the engine battery to keep it topped up.

 

[Two on Tour]

Victron 75/15 controller

Amber LED

BLINK FAST means bulk charging (battery is low)
BLINK SLOW means absorption charging (battery at 80% or so)
ON CONSTANTLY means float charge (battery is full)

If you have Battery Life enabled, then the green LED flashes when in Float with Battery Life. Regular Float mode, the LED is solid green.

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[bluesurf989]

What readings were you expecting?

Looks like the leisure batteries are in ‘float’ having been fully charged.

The engine battery is also fully charged. It’s worth remembering that the battery master is not a battery charger it’s job is to trickle a small amount on electric into the engine battery to keep it topped up.

When the old controller was on the panel shown 14.2v constantly in the sunshine. i was't sure after changing it to the victron that these new figures are as efficient..

 

[bluesurf989]

Victron 75/15 controller

Amber LED

BLINK FAST means bulk charging (battery is low)
BLINK SLOW means absorption charging (battery at 80% or so)
ON CONSTANTLY means float charge (battery is full)

If you have Battery Life enabled, then the green LED flashes when in Float with Battery Life. Regular Float mode, the LED is solid green.

Thanks for the info Two.
What does battery life enabled mean?

 

[Lozsing]

Battery Life: intelligent battery management
When a solar charge controller is not able to recharge the battery to its full capacity within one day, the result is often that the battery will continually be cycled between a ‘partially charged’ state and the ‘end of discharge’ state. This mode of operation (no regular full recharge) will destroy a lead-acid battery within weeks or months.
The Battery Life algorithm will monitor the state of charge of the battery and, if needed, day by day slightly increase the load disconnect level (i.e. disconnect the load earlier) until the harvested solar energy is sufficient to recharge the battery to nearly the full 100%. From that point onwards the load disconnect level will be modulated so that a nearly 100% recharge is achieved about once every week.

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[Two on Tour]

Thanks for the info Two.
What does battery life enabled mean?

"The Battery Life algorithm will monitor the state of charge of the battery and, if needed, day by day slightly increase the load disconnect level (i.e. disconnect the load earlier) until the harvested solar energy is sufficient to recharge the battery to nearly the full 100%."

 

[DBK]

When the old controller was on the panel shown 14.2v constantly in the sunshine. i was't sure after changing it to the victron that these new figures are as efficient..

A constant 14.2 volts is too much, once the battery is fully charged the voltage should drop, which is what the Victron is doing. It is now just keeping the battery topped up. The 13.2 is called the float voltage.

 

[eddie]

Battery life is only relevant when the “Load terminals“ are connected, otherwise it’s ignored

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[TheCaller]

I have recently installed a victron 75/15 mppt solar controller

Did I read somewhere that the latest Victron controllers had bluetooth capability built in? (eddievanbitz )

If so, download the Victron Connect app & you will get to know exactly what is going on. Earlier versions needed a separate Bluetooth module connected externally.

Does 'recently installed' = new?

 

[Two on Tour]

Did I read somewhere that the latest Victron controllers had bluetooth capability built in? (eddievanbitz )

I have been using version with the built in bluetooth for the past couple of years.

 

[bluesurf989]

Thanks everybody for all your help. It seems everything is running correctly then which is a relief.

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