A 12v100A lithium battery can be used for several hours on a 100W xenon lamp.

Your question is not very clear because I do not know the voltage of your xenon lamp. But in terms of power calculation: a 12V100Ah battery is equivalent to 1200Wh. When used on a 100W lamp, it can theoretically be used for 12 hours (without loss of power).

I hope this helps you.

First of all, the voltage must meet the requirements, that is, 26V lithium battery.

The capacity of the lithium battery can be configured according to your duration of use for example. , if you want to use it for one hour, you need to configure it for a lithium battery with a capacity of at least 260WH, the amp-hour number is 260/26=10AH;