weldted Posted August 29, 2018 Share Posted August 29, 2018 Hi all having upgraded my electrics as previously posted I have a question. Having fitted two Youasa L36-EFB 100 amp batteries a Votronic 350 Mppt controller, Votronic Solar computer and shunt so I can monitor both input and output. The computer is connected to the shunt rather then the 350 controller. The 300 watts of solar panels through to the batteries is all 10 mm good quality cable. Mains charger is a new /VICTRON-Blue-Smart-BlueTooth-12V-IP22-BATTERY-CHARGER-15/30 amp 1 output. Getting to the question on the computer along the top of the display there should be a picture of the sun when the charger is working which doesn't appear and a bit further across just before where it say charge when it's working is the word off, cannot work out why this is and does not appear in the instructions. Also if the charger is capable of in therory of charging at 50 amps what would be the mains voltage amps to produce this? Link to comment Share on other sites More sharing options...
spirou Posted August 30, 2018 Share Posted August 30, 2018 About 4A on 230V. Can't help with the rest. Link to comment Share on other sites More sharing options...
Stuwsmith Posted August 30, 2018 Share Posted August 30, 2018 Is there a load on the setup or is it all just sitting there with the batteries in a fully charged state and the setup "thinking" there is no need to supply the battery with charge and therefore shut off solar? Link to comment Share on other sites More sharing options...
spirou Posted August 30, 2018 Share Posted August 30, 2018 Got curious and took a look at the manual https://www.votronic.de/images/Manuals/08.%20Measuring%20Devices%20and%20Displays/1250_e.pdf There's no mention of having the option to connect to a shunt, just the solar controller which would give you information on solar in/out but not from EHU or alternator.. So while you obviously gained insight into what's coming in and out of the battery regardless of the source, I'm guessing the issues you have are the result of the way you wired it. Maybe it's expecting a certain signal that it's not getting in this arrangement such as voltage from the panel (~20V) to know the sun is out and the regulator is awake. If it's connected to a shunt it obviously doesn't know where the charging is coming from. To get the information you want you'd either need two displays, one for the regulator, one for the battery. Or an all in one system like Victron CCGX/Venus. Link to comment Share on other sites More sharing options...
weldted Posted August 31, 2018 Author Share Posted August 31, 2018 It is a Votronic shunt sold with the computer. Link to comment Share on other sites More sharing options...
spirou Posted August 31, 2018 Share Posted August 31, 2018 Which one? They all look very similar but used in different ways. https://www.votronic.de/index.php/en/products/solar-technology/lcd-solar-computer https://www.votronic.de/index.php/en/products/measuring-display-systems/led-lcd-modules https://www.votronic.de/index.php/en/products/measuring-display-systems/battery-computer Website says of these only the last one (battery computer) comes with a shunt. Solar computer connects to the solar regulator and only measures solar input not EHU & alternator. Link to comment Share on other sites More sharing options...
weldted Posted August 31, 2018 Author Share Posted August 31, 2018 It's the S one bought as a unit with the computer and shunt all in the same box. When next out the van will plug the computer into the controller instead of the shunt. Have email Votronic for advice. Like to monitor the discharge as fairly heavy users of 12 volt Link to comment Share on other sites More sharing options...
spirou Posted August 31, 2018 Share Posted August 31, 2018 This is getting interesting. :) The display can't connect to two cables so why would they sell this package unless it normally also includes a battery computer or then someone mixed up and put the wrong one in the box? They are identical - 6 pin RJ cables to connect shunt to battery computer and regulator to solar computer so I understand why you plugged it in. Obviously displays also partially work if you connect them wrong but the contents of your package still don't make much sense to me. Link to comment Share on other sites More sharing options...
weldted Posted August 31, 2018 Author Share Posted August 31, 2018 Found out the off is a remote switch control if the battery falls below a set voltage then will not come back on until a set voltage level is reached. This level can be set by the user. It would appear the wrong set of instructions were in the box. Explained here https://www.votronic.de/images/Manuals/08.%20Measuring%20Devices%20and%20Displays/1263_1266_1269_e.pdf Many thanks for the replies. Be interesting to see how it fairs on our next 6 month trip. Link to comment Share on other sites More sharing options...
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