TopFeatured.com

In my off-grid cabin I currently have a single 258 Ah (C24) Concorde PVX-2580L battery, with a 150 Ah spare for backup situations where the main runs flat.

As I frequently see the voltage drop below 12.1V (i.e. the 50% mark) in the winter time, I have bought a pair of 2580’s to double my available energy. These are of a different age and series than the one I currently have, and as one is not supposed to mix different AGM batteries on the same circuit, I am now exploring how I can make good use of them.

One thing I just came across is DC-DC chargers, such as this one from Victron. That would allow me for 120$ to charge a battery using the new batteries. That would effectively create a new circuit, so it would easily be under-utilized, if I didn’t use that circuit much. I would also need to find space for the behemoth battery the 2580 is 🙂

Any other input on how I could make good use of the redundant batteries?

In my off-grid cabin I currently have a single 258 Ah (C24) Concorde PVX-2580L battery, with a 150 Ah spare for backup situations where the main runs flat.

As I frequently see the voltage drop below 12.1V (i.e. the 50% mark) in the winter time, I have bought a pair of 2580’s to double my available energy. These are of a different age and series than the one I currently have, and as one is not supposed to mix different AGM batteries on the same circuit, I am now exploring how I can make good use of them.

One thing I just came across is DC-DC chargers, such as this one from Victron. That would allow me for 120$ to charge a battery using the new batteries. That would effectively create a new circuit, so it would easily be under-utilized, if I didn’t use that circuit much. I would also need to find space for the behemoth battery the 2580 is 🙂

Any other input on how I could make good use of the redundant batteries?