If "Jelly car battery" means gel cell type, then of course it will work. Even a standard wet cell battery will work, as long as you do not put it inside the case (corrosion, gas venting, etc) The inverter circuits in UPS units work quite well with various lead acid technologies (gel, wet, glass mat) so connect it and enjoy.
One quick thing to monitor with your voltmeter, and adjust as necessary - different types of lead acid batteries require different float voltages to properly maintain them. So if you're switching battery types, you'll want to ensure that the charging circuits in your UPS are detecting the battery type properly to ensure the best battery life. http://en.wikipedia.org/wiki/Float_voltage (I had to tweak the float voltage on my APC SU700a because it was running too high of a float voltage, and was killing my batteries off too quickly.) -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org