This is perfect. I'm trying to figure out a way to turn on my generator when my battery gets low. But with simple technology and not rewiring my generator. My generator has an option to turn on when my house power goes out. For my trailer, I want generator to turn on when battery gets low. Your solution will help me to feed a hot line to the generator to get it to think the power is on. In your scenario, when the battery is high. I'll feed your signal wire to a small inverter to feed 120 to the generator. When battery gets low, I'll use your idea to open the circuit leading to the small inverter, thus cutting the 120 feed to the generator, making it think the power went out. Then the generator should turn on! Just gotta figure out your parts to send the signal to small inverter. Thank you for the video! Chris
Fantstic video. Just what I have been looking for! NC and NO, NC stands for Normally Closed, NO stands for Normally Open. A relay that requires power to make the thing happen is NO, a relay that requires power to stop the thing happening is NC Edit: Really wish I could like this a thousand times, you may have just saved my sanity!
Great video, im building an offgrid system on my house and i have si much wasted energy on nice days, i plan to use this to wither heat water or charge another battery 👍
Thanks heaps mate just the video I'm after, I brought the temp sensor with mine and want to run computer fans on-top of the batteries so when it gets to a certain temperature ( from changing at high amps or using high amps running appliance's) I can then switch the fans on via preset relay so it will help keep air circulation and keep the battery temps down especially in the summer months
@@ProjectCamper hey mate just wired my fans in today, works perfectly!! Took a bit of diagnosing why It wasn't working after some frustration turns out the relay is only a 4 post but the harness that came with it is 5. I had my fans wired to the non functional wire, I thought originally that maybe they pins are joined internally but after doing a conductive test it states it doesn't So if you ever go to Jaycar and order a relay and harness I suggest you make sure the relay is proper for the harness or least use the right pin as it a 50/50 if you don't look lol But got it all sorted works perfectly fine 👍
Very detailed informative vlog bud. Thank you I have non of these electric bits as I’m lost I just got the basic in my van. Not sure how to up grade later to all this victron gear. :( Your home looking amazing bud :) Love to know how the heating Matt works :)
As soon as the heat mat pulls a load the voltage will drop and the relays will just flip flop. NC is normally closed and NO is normally open. For what you are attempting to do you should have the output in the NO connection BMV.
Ok cool , I’ve looked at the app and it can be reversed and the voltage value as mentioned is just for testing the led light, and not the mat obviously they will be adjusted for the load on the heater mat , thank you 👍
@@ProjectCamper I get what you are trying to do, maybe a secondary battery for the heat mat and a second basic charge controller would be easier to use the spare solar output.
![Demo on Victron BMV-712 Battery Monitor for Your RV, Skoolie or Van [A Guide]](http://i.ytimg.com/vi/tV055vmZgvY/mqdefault.jpg)
This is perfect. I'm trying to figure out a way to turn on my generator when my battery gets low. But with simple technology and not rewiring my generator. My generator has an option to turn on when my house power goes out. For my trailer, I want generator to turn on when battery gets low. Your solution will help me to feed a hot line to the generator to get it to think the power is on. In your scenario, when the battery is high. I'll feed your signal wire to a small inverter to feed 120 to the generator. When battery gets low, I'll use your idea to open the circuit leading to the small inverter, thus cutting the 120 feed to the generator, making it think the power went out. Then the generator should turn on!
Just gotta figure out your parts to send the signal to small inverter.
Thank you for the video!
Chris
You clever man. Excellent and simple application. I bought the 712 versus smartshunt purely for the relay but this is a great way to use it.
Fantstic video. Just what I have been looking for!
NC and NO, NC stands for Normally Closed, NO stands for Normally Open.
A relay that requires power to make the thing happen is NO, a relay that requires power to stop the thing happening is NC
Edit: Really wish I could like this a thousand times, you may have just saved my sanity!
To my dismay I found this out about 20 minutes after uploading the video and added it to the description. 👍👍👍
great video , i bet so many people that have the bmv712 dont know about this function, including myself, top job and really well done for sharing.
Great video, im building an offgrid system on my house and i have si much wasted energy on nice days, i plan to use this to wither heat water or charge another battery 👍
Excellent video very explanatory just what I was looking for 👍🏻
Glad it was helpful 👍
Thanks heaps mate just the video I'm after, I brought the temp sensor with mine and want to run computer fans on-top of the batteries so when it gets to a certain temperature ( from changing at high amps or using high amps running appliance's) I can then switch the fans on via preset relay so it will help keep air circulation and keep the battery temps down especially in the summer months
So glad you found this useful as i couldn’t find much on yt about it. I think the built in relay can handle 20amps, but double check 👍
@@ProjectCamper hey mate just wired my fans in today, works perfectly!! Took a bit of diagnosing why It wasn't working after some frustration turns out the relay is only a 4 post but the harness that came with it is 5. I had my fans wired to the non functional wire, I thought originally that maybe they pins are joined internally but after doing a conductive test it states it doesn't
So if you ever go to Jaycar and order a relay and harness I suggest you make sure the relay is proper for the harness or least use the right pin as it a 50/50 if you don't look lol
But got it all sorted works perfectly fine 👍
That’s great, it took me ages to work out the voltage switching but you soon work it with a lot of head scratching 👍
Very detailed informative vlog bud.
Thank you I have non of these electric bits as I’m lost I just got the basic in my van. Not sure how to up grade later to all this victron gear. :(
Your home looking amazing bud :)
Love to know how the heating Matt works :)
Wait till you see our video Sunday . You’ll be ripping all them trip fuses out buddy
I detest them, absolutely don’t trust them one bit there used mainly for on/off switching , I will 100% be watching Sunday , 👍👍👍👍❤️
As soon as the heat mat pulls a load the voltage will drop and the relays will just flip flop. NC is normally closed and NO is normally open. For what you are attempting to do you should have the output in the NO connection BMV.
Ok cool , I’ve looked at the app and it can be reversed and the voltage value as mentioned is just for testing the led light, and not the mat obviously they will be adjusted for the load on the heater mat , thank you 👍
@@ProjectCamper I get what you are trying to do, maybe a secondary battery for the heat mat and a second basic charge controller would be easier to use the spare solar output.
good vid