question

Greetings, Daniel, from a fellow (relatively new vintage 2019) ham. I cannot advise re: hw version details, but I did notice that while the Victron webpage says "7-step charging algorithm", the datasheet and PDF manual say 5-stage, and to keep it interesting the HTML manual has 6-stage, which adds Refresh to Bulk, Absorption, Recondition, Float, Storage. Says it happens automatically or as configured but I don't see config options in the app yet for my rev 01 unit bought in October 2020. Maybe they decided to count its ability to restart a low voltage shut-down LiFePO4 BMS by pushing current to wake up a battery that appears unreceptive, or maybe some marketing genius figured they'd up the bar. I think only Victron can advise on the reality.

My rev 01 came from seller Bay Marine Supply, a Victron distributor. I'm charging a 100AHr LiFePO4 battery in my first emergency power box build and so far it's been great to charge faster at 0.25C, and view charge history. (I also have the WMR Epic PWRGate, which charges at only 10A, but is quite useful for uninterruptible power and solar integration in one tiny box. I'm close to testing the solar MPPT charge function.)

AGM has been around a long time, and the settings are highly configurable via BT with the app in Advanced/Expert mode if an existing preset doesn't match your needs--with one yet-unaddressed bug (that I'm aware of) in the current build that means you cannot set Absorption time to less than 1 hour. Not being an AGM buff I don't know if that will matter. Those Northstar Reds do look nice. I hope you get many miles out of them.

As far as use as a power supply, it's a simple toggle in the app from Charger to Power Supply, and PSU voltage can be set anywhere from 12.8V to 14.7V in hundredth-volt increments. My digital clamp meter puts it spot-on (no load). You want 13.80, you got it. It remembers your settings so when you switch back, you're where you were in the other mode.

They regularly update the app and device firmware. See changelog here: https://www.victronenergy.com/live/victronconnect:beta

All in all, a very nice unit in hw rev 01. I'm happy. You'll presumably only have it better with rev 02, and I would recommend that you try it. Maybe better BT: Mine has weaker range than my BMV-712 Smart, but perfectly acceptable for my needs. (And the chip is buried inside a metal case, so I can't really complain.)