ludi wrote:[quote=Standard lead-acid chemistry has a working range of 1.75-2.14V per cell (and there are six cells in a 12V nominal battery), and even discharging to that limit is pretty rough on a typical car battery battery or small backup-rated SLA.
Ok, 6x1.75 =10.5 volts... good to know what level to watch for and keep above. Thanks!
ludi wrote:[quote=but if you just want 1kW or less available to survive an occasional storm outage, a gas generator and a bottle of fuel stabilizer are cheaper and will run longer provided you've got a suitable outdoor storage location.
Heh, I've got that but I seem to need a new gen.
The UPS refuses to accept the output of the gen. It trys a taste and goes back to battery power.
Lights,air conditioner,frig all work but the digital answering machine died instantly
when plugged into the gen output making crackling noises. Never came back from it.
The new gen I been looking at went up $100... no black friday sale for gens.
The voltage reads ok but I have nothing to read voltage spikes with
and the UPS says 57 hertz.
Electrician say at $100/hr to repair... buy a new one.(it maybe 10 years old or more)