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Currently everything in the van solar etc is Victron (mains charger/inverter for fridge/smart shunt/solar regulator and raspberry pi4 running venus software )<br />
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The only thing that isn't is the B2B charger ...which is a ring rscdc30 combined solar/b2b (solar side developed the well documented not waking up after night time )<br />
So now just looks after engine charging ...<br />
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I've never been massively impressed after it failed ...<br />
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So now thinking of replacing it with Victron (unsurprisingly )<br />
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Question is all my other victron gear(barring the mains charger) are connected via ve/USB leads ...<br />
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The victron b2b I've looked at so far appear to just have Bluetooth connectivity (no ve leads)<br />
So am I right thinking that will just connect to the pi4 without plugging in ?
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</blockquote>Nope, you will need to get a VE.Direct - USB Lead like the other stuff if you want to connect.<br />
However ... as you have noticed, the Smart-Tr Orion does NOT have a VE.Direct port, so you cannot connect <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f641.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":(" title="Frown :(" data-smilie="3"data-shortname=":(" /> This has always been a limitation of the Orion-Tr.<br />
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<blockquote data-attributes="member: 45290" data-quote="mistericeman" data-source="post: 1451482"
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And do I go for a 30 (same as the solar) or stretch to the 50
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</blockquote>50A all day long over the 30A.<br />
The 50A unit as well as having a greater output has other advantages such as running cooler and being fully controllable. Another advantage which you will like is that the Orion-XS 50A DOES have a VE.Direct port so you can bring it into your Victron world.<br />
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3 x 100ah agm batteries<br />
And standard alternator<br />
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Summertime is never a problem as the solar manages without issue ....<br />
It's mostly for the darker parts of the year<br />
When we usually move around or at least go in search of places to eat/walk the dogs each day .
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