[NANOG] Re: Small Capacity UPS

[Mark Tinka via NANOG <nanog () lists nanog org>]

On 4/9/25 10:27, Gary Sparkes wrote:
> The innovation is there, if you can afford it - it's still more expensive than SLA just on virtue of the cell costs, 
> alone. Space savings may or may not be worth it to you, longevity argument may win the budget fight, it may not - sometimes 
> spending $X every 2-3 years is a better option for cashflow reasons than spending $2*X for 5-8 years.

If your commercial power is very stable, LA will often times be cheaper 
than Li-Ion.

But if your commercial goes out with any reasonable degree of frequency, 
and for extended periods, LA batteries will eventually run out of their 
capacity due to the frequent deep discharge. In such a case, Li-Ion will 
be a better investment.

The longevity difference for LA batteries between stable and unstable 
power can be 4 - 5 years down to 1 - 2 years.

Mark.
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