[time-nuts] Re: Backup DC power with current battery technology?

[Michael Fahmie]

John,

I have found that the HLG series of Meanwell power supplies work quite well
in that service. The HLG-600H-30A is rated at 20 amps and is adjustable for
constant current/voltage. My 12v home system uses a HLG-600H-15A to
charge/maintain a 600 AH LiFePO4 bank, and I have used their lower powered
HLG supplies in several other LiFePO4 applications.
-Mike-
WA6ZTY


On Sun, May 26, 2024 at 12:35 PM John Ackermann N8UR via time-nuts <
time-nuts at lists.febo.com> wrote:

> I need to replace the batteries in my 28 VDC power distribution system
> in the clock room.  It's currently two series 12V AGM batteries with an
> IOTA Engineering float charger.
>
> This system has two purposes: (a) primary power for some OCXOs and other
> gear; and (b) failover power for some AC/DC gear like HP standards.
> Under normal conditions, power draw is 2 or 3 amps.  During mains
> outage, it could reach 10 amps.  Now that I have a house generator, long
> run-time isn't a big issue so 25 Ah or so of capacity is plenty.
>
> I haven't explored LiFePo4 batteries until now, and I'm having trouble
> finding a charger that can provide significant continuous load current
> while maintaining a battery floated across the line.  Does anyone have
> recommendations for something like this?
>
> Thanks,
> John
> _______________________________________________
> time-nuts mailing list -- time-nuts at lists.febo.com
> To unsubscribe send an email to time-nuts-leave at lists.febo.com
>