We use Northstar Red HT models for this type of application.  They are
100ah and only slightly more expensive than the 80ah batteries you linked.

On Tue, Feb 2, 2021 at 3:33 PM Josh Luthman <j...@imaginenetworksllc.com>
wrote:

> I'm looking at a 1200 watt load and would like to see 2 or 3 hours of run
> time.  Everything's 48vdc.
>
> I'm kind of leary about using lithium ion since I'm using an ICT power
> supply and their system is designed for SLA/AGM.
>
> What kind of things should I be looking for?  I thought these looked
> pretty good:
>
> https://www.batteriesplus.com/productdetails/battery/sla-sealed-lead-acid/12/wkdc12=80pus
>
> 12v*80a=960whr
> 4 of these = 3840whr
> Runtime upwards of 3.2 hours (obviously there will be loss, but shouldn't
> I expect 2+ hours)?
>
> Josh Luthman
> 24/7 Help Desk: 937-552-2340
> Direct: 937-552-2343
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> Troy, OH 45373
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