I’ve just upgraded my Victron Gels to NG 200 24V batteries. My engine has an 80-amp 24V alternator which I had been running through a Sterling Power charger, which conditions the incoming current and does 2-stage charging. The Sterling has a LiFePO4 setting, which has a slightly different charging …

Sorry, can’t help regarding your Sterling charger but there is an Orion XS 1400w available now that’ll do 24v at 50 amps I believe.

As @drs68 states, the new Orion XS will do 50A at 24V and importantly for you, it is fully VE Direct compatible so connected to a GX device, the BMS will manage the Orion XS charging via DVCC. I have NG batteries and they charge rapidly at the set absorption voltage which for the NG batteries is 28…

It is 50A input and 50A output. The lower voltage side will limit the power so the other side will have lower amps at higher voltage. 50A is the highest I would like to run an 80A alternator charging lithium batteries. I run my 175A alternator at 100A in summer weather, it is OK at 120A in cooler t…

OK, thanks - guess I’ll bite the bullet and fork over ~300.00 for a new Orion. :frowning: Appreciate all the advice - this is a great forum! David

Update on this: after perusing the Orion-XS manual I see that it requires connecting the house and engine battery neg. circuits, and it doesn’t provide a separate charging circuit and profile for the two batteries - which the Sterling does. Plus the 24v version of the Orion XS is 400.00. I think I …

As a reference my 600Ah of 12V NG batteries charge with 120A and a 14.0V absorption setting perfectly well, 14.0V is what the Lynx BMS runs at, but for daily absorb I run 15 minute absorb time to fit the the battery manual recommendation of 8 hrs per month. The question is what absorption time do t…

Update: I went with @pwfarnell 's recommendation and the NGs seem to be charging just fine; voltage & amperage drop down to float level once fully charged. But long-term I would like to put in an Orion XS 1400, as the Sterling is now the only non-Victron component in my system. But it’s not clear w…

The supplier has the wrong data on their website. The Orion XS 1400 has 2 limits, max 50A input, max 50A output. It is rated at 1400W max output. Contact Dynastart and tell them to correct their information. However, I do not have an Orion XS in use, so I am reporting Victron info. Data…

I believe they have created their own text, I have not seen this elsewhere on Victron info and just made a mistake.

Sterling Power charger and Victron LiFePO4 NG batteries?

DIY

dasnider (David Snider) 12 July 2025 11:30 4

Thanks; does the Orion XS 50a rating apply to the input or output capacity? My alternator’s max output is 80a, though that’s prob. at higher engine revs that I would ever use…

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Sterling Power charger and Victron LiFePO4 NG batteries?

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