I should have been more specific. Sorry. That's what happens when interrupted and distracted. It's already pretty well established that more battery means more run time, provided the UPS is up to the task. Assuming, naturally, that the load is within the UPS range. But the UPS itself also has limitations: It may not be designed to operate even unloaded for more than a few minutes or even for a few times. It may not be able to charge a battery more than a few times. In this case it does not matter how much battery you have or what the load is. Industrial UPS and solar/wind UPS makers do tell you what all the specs are. Fortunately, in nearly all cases, they are designed to run continuously. But that is not the same for "consumer" backup UPS. I have yet to see one with anything about how long one could run given enough battery. In fact, the manufacturers all say, "Don't do it!" I guess it's better to just avoid taking a risk and pay the much higher price for one that actually says it will run continuously. jd -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org