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how is that possible?

how is that possible bp-220 connected to charge and discharge?


boris asked
boris answered ·

2 Answers

100A Autotransformer - 120 to 120/240 wiring

Hey everyone,

I've got a Victron Autotransformer which will be feeding my SolArk 15k from either 15A or 30A shore power; these 2 sources are on a rotary switch, so only one will be active at any given time. Anyways, obviously the 15 or 30a inputs will only supply 120v, but the SolArk requires 120/240 because it supplies the distribution panel...hence the need for the AT.

My question/ask of this forum is...could someone please post a picture of how to wire this? I know there's schematics in the manual, but I don't know how to read those diagrams.


dothedr3w asked
dothedr3w commented ·

3 Answers

How much batteries on multiplus II 5000

Hello, we have a 'multiplus II 48 5000' at home and I was wondering how much batteries I could connect to it. At the moment we have 4 "US2000's" connected to it, but we wanted to connect another battery. The new battery we bought is the US2000C. Is it possible to connect this battery to our current installation? We would use the US2000C as master. Thanks in advance

nonkelamadee asked
nonkelamadee commented ·

1 Answer

Unable to pair Apple iPad to MPPT 75. 15

Was able to pair to Apple iPhone. Now I really want connection with Apple IPad. The instructions say enter the Serial number to pair, Do I have to enter with capitals and numbers, or do I enter the default “000000”. I’m confused. I’ve tried both many times.

murfmv asked
nickdb edited ·

1 Answer

how to use the motion sensor

After reading this article :


mojimoji asked
Lucian Popescu (Victron Energy Staff) answered ·

1 Answer

The right mppt choice

Hello all,

I am facing a cost/benefit decision. I am looking for the right mppt for my 350wp solar system. I have no experience with solar systems.

The solar system consists of 2x 175wp:


Vmpp: 37,16V

Impp: 4,71A

Voc: 44,28V

Isc: 5,21A

The Victron rating calculator suggests me the SmartSolar 100/20.

However, I am unsure if this may be too small for my system. According to the data sheet, this is designed only up to 290W.

Alternatively, I have looked at the 100/30. This would of course cover the power, but possibly somewhat oversized.

The solar panels are ultimately mounted statically at a horizontal angle. Is it realistic that the solar panel produces more than 290w in this scenario? I assume that I would " fully utilize " the 100/20 in a few szenarin and therefore the 100/30 would offer very little added value.

I would be very happy to here some experience values. For which MPPT would you recommend?

Thanks for your help and time!

ago007vovfd asked
Sarah answered ·

2 Answers

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