Victron Solar Controller (2 Viewers)

[Pollypenny]

Just bought a Victron SmartSolar MPPT 75/15 controller. Does the little black jumper link need removing before I set it up via bluetooth?

 

[10tenmen]

Just fitted the same model and didn’t alter the jumper just remember to connect the leisure battery first then the solar panel. Instructions are online

 

[funflair]

Page 15 explains the jumper settings but if you are not using the load terminals I think it should be removed.

https://www.victronenergy.com/upload/documents/Manual_SmartSolar_MPPT_75-10_up_to_100-20/29694-MPPT_solar_charger_manual-pdf-en.pdf

 

[Pollypenny]

Page 15 explains the jumper settings but if you are not using the load terminals I think it should be removed.

https://www.victronenergy.com/upload/documents/Manual_SmartSolar_MPPT_75-10_up_to_100-20/29694-MPPT_solar_charger_manual-pdf-en.pdf

Thank you and I agree it looks like it should be removed as I will be using the settings via the app

 

[Pollypenny]

Just fitted the same model and didn’t alter the jumper just remember to connect the leisure battery first then the solar panel. Instructions are online

Looks like it should be removed if you are using the app for settings. I'd be happier with it removed to be honest as it looks like something that will be easily knocked and is quite fragile

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[10tenmen]

Looks like it should be removed if you are using the app for settings. I'd be happier with it removed to be honest as it looks like something that will be easily knocked and is quite fragile



View attachment 930083

Agreed fetching mine from storage tomorrow and I will remove. Thanks for the clarification

 

[Pollypenny]

Agreed fetching mine from storage tomorrow and I will remove. Thanks for the clarification

Out of interest did you fit an inline fuse between the controller and the battery and if so what size fuse? I fitted one for the previously bought and utterly useless Dokio controller and used a 30A fuse (it was a 20A controller), but thinking this needs to be smaller now as the manual suggests 20A to 25A, but wondering if the 30A will still be of use?

 

[Kannon Fodda]

Any fuse should be the lowest rating possible to suit the wiring capability. If the connected appliance is lesser than the wiring, then fuse for the appliance i.e. solar controller. But fuse near battery for solar connection is always good idea.

I removed the jumper thing as I was using bluetooth.

 

[Pollypenny]

Any fuse should be the lowest rating possible to suit the wiring capability. If the connected appliance is lesser than the wiring, then fuse for the appliance i.e. solar controller. But fuse near battery for solar connection is always good idea.

I removed the jumper thing as I was using bluetooth.

So the wiring I have is what came with the 160W solar panel (portable) and the now discarded Dokio 20A controller. I wanted the keep the wiring as it has XT60 connectors which I can use as a disconnection between battery and panel. How do I know what inline fuse suits the wiring in this case?

 

[10tenmen]

Out of interest did you fit an inline fuse between the controller and the battery and if so what size fuse? I fitted one for the previously bought and utterly useless Dokio controller and used a 30A fuse (it was a 20A controller), but thinking this needs to be smaller now as the manual suggests 20A to 25A, but wondering if the 30A will still be of use?



View attachment 930097

Mine already had a 20amp battery fuse.

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[Pollypenny]

Just trying to set it up via the app but the preset battery options are confusing. We just have a standard leisure battery - flooded lead acid I believe, so what option would I pick?

 

[Jev88]

Victron charge controller settings for lead-acid and lithium batteries - SunnyWell Energy

Victron MPPT charging settings are easy to program if following our guide. Victron provides a user-friendly VictronConnect App.

sunnywellenergy.com

 

[Pollypenny]

Victron charge controller settings for lead-acid and lithium batteries - SunnyWell Energy

Victron MPPT charging settings are easy to program if following our guide. Victron provides a user-friendly VictronConnect App.

sunnywellenergy.com

Sadly still no clearer as it just shows which to pick for a lithium battery so I may have to contact Victron

 

[Pollypenny]

Sadly still no clearer as it just shows which to pick for a lithium battery so I may have to contact Victron

Although I see there is an option to ask for advice which seems very good so will try that

 

[Jev88]

Sadly still no clearer as it just shows which to pick for a lithium battery so I may have to contact Victron

Didn't you get to this part?

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[Pollypenny]

Didn't you get to this part?

View attachment 930345

Yes but that is about the settings, I still don't know which battery type to choose from the options in the drop down list if that makes sense? I see others have asked the same question in that link though so once I have double checked the exact spec of my battery tomorrow I will also ask which to choose and what settings are best too. Thank you for the link

 

[ChrisL]

Sadly still no clearer as it just shows which to pick for a lithium battery so I may have to contact Victron

If you start changing values the battery type will change to user defined, assuming your batteries are 12v use the left most figures in Jev's post the other numbers are for 24v and 48v batteries, remember that temperature compensation is per cell so multiply by 6 for a 12v battery. Edit: Set battery type to gel and then start changing the values if necessary.

 

[Pollypenny]

If you start changing values the battery type will change to user defined, assuming your batteries are 12v use the left most figures in Jev's post the other numbers are for 24v and 48v batteries, remember that temperature compensation is per cell so multiply by 6 for a 12v battery. Edit: Set battery type to gel and then start changing the values if necessary.

But my battery isn’t gel as far as I know? I’m just trying to find where it states normal flooded lead acid battery but there is no option for that. Anyway I will ask on that link as others have and see where I get from there

 

[Lenny HB]

So the wiring I have is what came with the 160W solar panel (portable) and the now discarded Dokio 20A controller. I wanted the keep the wiring as it has XT60 connectors which I can use as a disconnection between battery and panel. How do I know what inline fuse suits the wiring in this case?



View attachment 930158

Those wires are far to small to be fused at 30 amps you need to fit new cables.

 

[Raul]

But my battery isn’t gel as far as I know? I’m just trying to find where it states normal flooded lead acid battery but there is no option for that. Anyway I will ask on that link as others have and see where I get from there

Preset no 2, the values are for flooded batteries.
And ditch the wire on the battery side, to small.

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[ChrisL]

But my battery isn’t gel as far as I know? I’m just trying to find where it states normal flooded lead acid battery but there is no option for that. Anyway I will ask on that link as others have and see where I get from there

It doesn't matter that your batteries are not gel because you're going to change the values to the ones you need for your battery, when you start changing the values the battery type will change automatically to user defined, it will no longer say gel. I say start with the gel preset because the values will be closest to lead acid, is that a bit clearer?

 

[Jev88]

Yes but that is about the settings, I still don't know which battery type to choose from the options in the drop down list if that makes sense? I see others have asked the same question in that link though so once I have double checked the exact spec of my battery tomorrow I will also ask which to choose and what settings are best too. Thank you for the link

It lists the voltages for a 12v lead acid battery ..... Enter them manually as a custom setting.

 

[Jev88]

Highlighted the 12V values for you to edit.

 

[Pollypenny]

It doesn't matter that your batteries are not gel because you're going to change the values to the ones you need for your battery, when you start changing the values the battery type will change automatically to user defined, it will no longer say gel. I say start with the gel preset because the values will be closest to lead acid, is that a bit clearer?

I think I understand, thank you

 

[Pollypenny]

Those wires are far to small to be fused at 30 amps you need to fit new cables.

It states on the back of the solar panel that they came with that they are 12AWG, but I ordered another XT60 connector from Ebay that has 12AWG cable attached and it is clearly much thicker. However, why does the cable need to be thicker as so many electrical items have wires this thin? If I drop the fuse to a 20amp one will that not resolve any concerns?

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[Pollypenny]

It lists the voltages for a 12v lead acid battery ..... Enter them manually as a custom setting.

I literally cannot see any option for a 12v lead acid battery?

 

[Pollypenny]

Preset no 2, the values are for flooded batteries.
And ditch the wire on the battery side, to small.

So the one that says 'Gel Victron deep discharge (2)'?
If I ditch the wire from controller to battery for thicker wire, do I also need to ditch it from the controller to the solar panel as that seems to be hardwired into the panel so not quite as simple to replace?

 

[Pollypenny]

Highlighted the 12V values for you to edit.

View attachment 930675

Thank you but it is just the choice of battery I need to know to move forward before I can get to the change of settings section if that makes sense?

 

[Jev88]

Start with Gel or AGM setting and then edit.

 

[Tombola]

Thank you but it is just the choice of battery I need to know to move forward before I can get to the change of settings section if that makes sense?

you can choose gel and edit it

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