I live in a part of the world where powercuts are pretty frequent. 1 per day is normal. They last between 1 and 8 hours. A day without powercuts feels like a special occasion.
My machine is powered by a desktop ups which is terrible. It is only supposed to power everything for a few minutes to shutdown safely. But it is cheap and I don’t know much about other affordable alternatives.
How do you folks who self host at home deal with powercuts? Any recommendations? 8 hours of uptime from a ups sounds almost impossible or totally unaffordable to me.
As the other commenter said, it’s all about depth of discharge. A 10kWh Lifepo4 bank gets you almost 10kWh every time while you should treat a 10kWh lead-acid bank as if it was a 2kWh bank for any sort of decent life, with deep discharges being limited to emergency situations.
All lithium chemistries are practically maintenance free while you are probably familiar with water level monitoring and equalization of lead acid.
Note that all site built lithium banks MUST have a balance mechanism as this is their “automated maintenance”. Without balancing on every charge, lithium cells will be rapidly destroyed.