I Love Electricity


MEGA Battery Expansion for UPS

I have this large, fully isolated, dual conversion UPS which contains 16 12v 7aH batteries, for a stored energy capacity of 1.344kWh. That’s just not enough for me. So I connected 8 12v 110aH in 96v configuration to the “external battery” ports, which gives me 10.56kWh of extra storage. I don’t think they ever intended […]

Power Conditioning for Computers

This was my UPS stack up until yesterday. There are 7500va of Liebert Dual Conversion True Sine units there. I certainly don’t have that much stuff plugged in, but I needed the runtime. The combined total of 26 12v 7ah batteries in them gave me plenty of time to get the generator started when the […]