For things like this, I like three sources:
In this case, Everymac says it's a 60 w/hr battery
If watt hour = amp hour x volts, then...
60 = A x 110v
60/110 = .545454
is that ~5400 mA/h?
I suck at conversion.
I do not understand what I do. For what I want to do I do not do, but what I hate I do.