Planning a build at the moment in which I want to be able to charge from AC.
I have been trying to properly get my head around chargers to charge Lithium banks at high current, and it doesn't really seem like there are a huge amount of options.
I am toying with the idea of using a Victron bluesmart MPPT 100/30 to create a Lithium 'profile' and then feed the MPPT with DC via an AC-DC PSU.
So the setup would be:
AC240v toDC 60v20A to MPPT 100/30 to Battery bank.
This bank is a 29.4v charge, but as the Victron app focusses on Lead Acid batteries the terms they use do not relate and I'm having a little trouble figuring it out.
When you install the app without the hardware you can run a demo mode. The guide (found here) suggests you can set a 'bulk' voltage, which is what I would assume would be the setting you would need for a Lithium pack, however the actual app does not have this, it only has 'absorption' and 'float'...
Any references I find to using the MPPT to charge lithium online suggest you should set the bulk voltage, but this does not appear to be possible to me?
I am only experimenting with this idea at the moment, and my 'backup' plan is to purchase one of these from Omnicharge, they are not too expensive at 400/20A and 520/30A.
But I'm just trying to work my way through this idea as well to see what I think it best when it's all 'in place' in my mind.
I have been trying to properly get my head around chargers to charge Lithium banks at high current, and it doesn't really seem like there are a huge amount of options.
I am toying with the idea of using a Victron bluesmart MPPT 100/30 to create a Lithium 'profile' and then feed the MPPT with DC via an AC-DC PSU.
So the setup would be:
AC240v toDC 60v20A to MPPT 100/30 to Battery bank.
This bank is a 29.4v charge, but as the Victron app focusses on Lead Acid batteries the terms they use do not relate and I'm having a little trouble figuring it out.
When you install the app without the hardware you can run a demo mode. The guide (found here) suggests you can set a 'bulk' voltage, which is what I would assume would be the setting you would need for a Lithium pack, however the actual app does not have this, it only has 'absorption' and 'float'...
Any references I find to using the MPPT to charge lithium online suggest you should set the bulk voltage, but this does not appear to be possible to me?
I am only experimenting with this idea at the moment, and my 'backup' plan is to purchase one of these from Omnicharge, they are not too expensive at 400/20A and 520/30A.
But I'm just trying to work my way through this idea as well to see what I think it best when it's all 'in place' in my mind.