G'day from Australia, 2× 13.4 amp panels but only 20amp dc-dc charger

[lukeyninja]

G'day all, I have 2× 250w 12 v , 13.4amp panels but only have a 20amp dc-dc charger with a built in mppt charge controller, what (if anything) can I do to complete building my system?
Going to 2× 100wh lifepo4 batteries
Any ideas would be greatly appreciated

 

[wattmatters]

G'day all

Welcome.

250w 12 v , 13.4amp panels

That doesn't add up. Sounds more like 160 W panels.

but only have a 20amp dc-dc charger with a built in mppt charge controller, what (if anything) can I do to complete building my system?

That depends on what is it being used for. Have you done a load assessment / energy audit?

What are the MPPT input specifications, and is it suitable for charging the batteries you are choosing?

Going to 2× 100wh lifepo4 batteries

Voltage?

 

[lukeyninja]

G'day mate,
Thanks for the reply, much appreciated.
I'm just reading what's on the panels and charger, have attached a couple of pics, a bit more explanation.
Am using my camping system as a backup for a couple of things at home, had 5 day power outage due to storms last year and I use my fold out 300w solar blanket to run some lights, 80lt camp fridge and charge my battery tools, so I thought why let the batteries sit there with no use for months when I can still use them to run the outside bar fridge and charge my tools, so I just grabbed another 12v battery and a couple of panels, had most of the other stuff already.
Once I get it all sorted I will probably increase the system to reduce our skyrocketing power bill!!!

Anyway thanks again for the help
Cheers
Luke