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New Victron SCC, need help to decide what model to choose

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StarsScraper

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Apr 12, 2021
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Hello all,

So I'm in the market for a new SCC to replace my 3 YO Epever Tracer 2210 AN 20A.

My set up goes like this:
2 Victron panels 115 W each in series
20 m of 6 mm² cable with MC4
New Victron SCC... TBD...
DIY LiFePO4 battery 175 Ah, 12 V, JBD BMS

I use it for boondocking in SE France.

My local Victron dealer advises me to take a Smart Solar MPPT 100/30 model.
This seems a little oversized to me: would a 100/20 be sufficient, since the 100/30 is 45% more expensive?

Thanks for your inputs
 
Depending on the panels, you should be able to get away with a 100/20.

If you are at a point where the panels max out, the charger may run a little hot. That could be fine for infrequent usage. I try to size my gear so I don't run all out at 2/3 rd power for hours on end, day after day. I have a 75/15 I will run at 100% all day, but not day after day.
 
chrisski said:
Depending on the panels, you should be able to get away with a 100/20.

If you are at a point where the panels max out, the charger may run a little hot. That could be fine for infrequent usage. I try to size my gear so I don't run all out at 2/3 rd power for hours on end, day after day. I have a 75/15 I will run at 100% all day, but not day after day.
Click to expand...
TY,

Until now I was using the SCC only once a week since I don't have many loads: 12V lights, 12V computer and phone chargers, Starlink.
Regarding the panels they are SPM041151202 models.
And if they max out for 1 hour that is huge: clouds, sun orientation...

I have purchased an impact wrench, but I don't think it will change things dramatically.

So I will go 100/20
 
StarsScraper said:
TY,

Until now I was using the SCC only once a week since I don't have many loads: 12V lights, 12V computer and phone chargers, Starlink.
Regarding the panels they are SPM041151202 models.
And if they max out for 1 hour that is huge: clouds, sun orientation...

I have purchased an impact wrench, but I don't think it will change things dramatically.

So I will go 100/20
Click to expand...
On a different set up, I run 900 watts of panels on a 24 volt setup into a Victron 100/30 and change the panels into the sun three times a day. THis keeps the 100/30 maxed out at 30 amps ~800 watts for hours on end, and I'll do this two or three days in a row.
 
Not sure if it was same session but choose terminals or no preference instead of mc4, they don't make the mc4 version in the smaller sizes I don't think.
 
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