[NANOG] Re: Small Capacity UPS

[Jared Mauch via NANOG <nanog () lists nanog org>]

On Mon, Apr 07, 2025 at 06:30:42AM +0000, Vasilenko Eduard via NANOG wrote:
> lithium is a)expensive, b)dangerous (it could quickly burn your house), c)would be dead in 4 years.
> We're talking about stationery; it's not wearable, right?
> Then there are many LiFePO batteries on the market. Many propositions are with a special controller that emulates 
> lead batteries for the respective voltage (it permits connecting it to the old staff).
> LiFePO is much-much better on a), b), c). But has bigger weight.

        Please stop spreading some FUD here, there's reputable lifepo4
systems that have inbuilt fire suppression.  Yes there's a lot of cheap
stuff out there, but if you are not buying directly you are in good
shape with the right UL etc markings.

        Look at something like what they use in a solar setup, you can
purchase a 14.3kW battery + inverter for ~7500 and just wire a L6-30
for your PDU as appropriate.

        Look at the EG4 for an example:

https://signaturesolar.com/eg4-12kpv-hybrid-inverter-48v-12000w-input-8000w-output-120-240v-split-phase-eg4-wallmount-indoor-battery-280ah-51-2v-14-3kwh-bndl-e0012/

And the battery has inbuilt fire suppression system:

https://eg4electronics.com/backend/wp-content/uploads/2024/03/EG4%C2%AE-Indoor-280Ah-Battery-Specifications-Sheet.pdf

Most things can catch on fire, sure.. but not everything lacks any
safety systems.

Either way, this is fairly plug and play, and you can get two for 1+1
setup with options to have it control generator or other power input
(eg: solar) including controls to test generators etc or to charge
battery if you live in an area like me where we have some of the lowest
grid reliability in north america.

        - Jared

>
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