One should note..that the charging requirements for larger batteries often exceed the ability of small UPSs. Big batteries often require many amps to recharge, and a small UPS will think its a dead short or work its little ass off, until it burns up.
Gunner
Have you noticed how these enviros have become alarmed by the proliferation of large carnivores in the boonies? I saw one remark to the effect that bears, for example, do not seem to know their place on the "food chain." Why should they? Only man comes up with ideas like a food chain, and with man the idea only makes sense because man is armed. Without his weapons, man is by no means at the top of any food chain. On the contrary, he is down in fourth or fifth spot, depending upon the environment in which he lives. Primitive man was under no illusions about this, nor are the backwoods folk in India today. To a tiger, man is a morsel, as these unarmed joggers seem to be to a cougar, upon occasion. Man is man because he is always armed. That is something they do not teach in kindergarten, nor for that matter in high school. A youth becomes a man when he is first presented with his own personal weapon. That is his right of passage, and those who do not understand that are questionable members of a free society. - Jeff Cooper's Commentaries, Vol. 9, No. 7, July, 2001