question

ken avatar image
ken asked

Trouble charging with Orion 12/24-10

I bought a Orion 12/24-10 converter, and installed today with intention to charge my 24v lifepo4 battery from the van. The lifepo4 battery was measured at 26.4volt and I set the Orion output at 27.3 volt. I was expecting the battery to draw the full 10amp from the van, but it turned out the charging current was close to zero (at 0.25amp). With that, this unit can not really serve as a battery charger as claimed in the user manual. Did I miss any setting? Thanks for any insight.



battery chargingOrion DC-DC Converters not smart
2 |3000

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

4 Answers
adev avatar image
adev answered ·

26.4v is pretty much full for a 24v Lifepo4 battery no? try again after using some energy...

2 |3000

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

ken avatar image
ken answered ·

26.4v is about 70% full. I set the charging volt at 27.3volt to get about 90% full.

2 |3000

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

adev avatar image
adev answered ·

I don’t know all the specifics but I’m pretty sure you need a higher charge voltage than that to get a full charge /or a long time....

Absorbtion voltage on the MPPT controllers is around 14.4v for lithium (28.8v for your case). “Float” is around 13.6/27.2

2 |3000

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

ken avatar image
ken answered ·

More testing today. Turn out that the low current I initially observed was likely caused by the volt drop in the wire. As I increase the output volt from the converter, the current did start flowing.

2 |3000

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.