On my MBR LR6 shows up as GPU required (even if I go and disable it the pref dialog).
This causes nvidia gpu to be enabled and that in turn causes my battery to drain like crazy even if I don't use LR6 (it's just opened)
I would consider this to be a serious bug.
How do you know it is the GPU that is draining your battery?
OS X, Activity Monitor shows (Requires High Perf GPU) column as yes on LR6
Current Graphics Card:High Perf.
I quit LR6
Current Graphics: Integrated
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