I have used LCDS for quite a while now and there came up an idea to display the battery status of the notebook. I didn't find any option/variable for that.
Is it possible to display the battery status with LCDS
You can get raw battery status info in performance monitor. To find the required performance counter, run Perfmon (under Administrative Tools>Performance on XP) and add counter ("+" button on toolbar). Look for BatteryStatus in the performance object list (this will be different in non-English Windows). You may have to close the Add box and reopen it to see the battery items.
You should then see several counters like Remaining Capacity, Discharge Rate etc. You can use one of these in the perf plugin as per instructions in the perf readme. However, on my laptop the Remaining Capacity is given as a large value like 42000 - I think the units are mW-hours. I don't know if there's any estimated time remaining value.