High Voltage Batteries
While the terms "high voltage" and "batteries" don't seem to go
together, there are at least two places where they do.
In hybrid vehicles, battery voltages can be more than 300V. Thus,
the same care must be given as when working on any high voltage system.
Second, some batteries, such as 3.6V batteries in AA size, have been
called "high voltage batteries." I think a better description would
be "higher voltage batteries."