Battery Lifetime Impact of Always On (UPS)

My AC180’s function is for backup power during grid outages. Those happen a few times per year, but can last for a week.

I plan to have my AC180 running as a UPS for my modem, router, and a few other devices (around 40 Watts). So, the device will always have a state of charge around 99-100%.

I’m guessing that isn’t ideal for the LFP battery.

My question is how bad is it?

I could keep the unit around 50%, and charge it up when an outage is expected, but that’s not ideal for my needs.

To quantify it, the AC180 has a lifespan of 3,500 cycles. How many cycles would that be if I kept it always charged?

Thanks!

Hi @PianoAl

We had this discussion several times here. Official answer is, that UPS dont have a negative effect on the battery lifespan.

greetings
Erik

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