It literally would take you less time to simply try this than searching the internet for an Android forum then trying to figure out how to ask the question...
Meanwhile I have not yet found the device, phone, tab or laptop that will allow you run solely on AC with no battery. Even if the battery sucks, won't charge, immediately falls to zero percent when unplugged it seems that it must be in the device, but hey give it a shot and let us know what your results are in case someone else has the question.
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