My ipad will not charge when it is plugged in to my MacBook, however my iPhone will. Does anyone have any ideas?
Hi
Lairman - welcome to the forum!
Just to expand on
Lanny's excellent response, the chargers used by the iPad require more 'power' (measured in Watts which is amperage x voltage) - for earlier chargers, 10 Watts was the standard (i.e. 5 V x 2 Amps); for recent models, 12 Watts (i.e. 5 V x 2.4 Amps) - the iPhone (or my old iPod Touch) requires half of that power.
Now, USB provides 'power' but the amount has varied considerably w/ the standards, now @ 3.x (check
HERE) - the amount of power w/ the newest standards has increased to adequately charge an iPad, but not so w/ earlier standards; so, depending on your USB ports, the iPad may show the 'charging' icon or may not - a trickle charge will be applied w/ the earlier USB ports but will take a lot longer to charge the iPad.
Bottom line - your iPhone is charging because only 5 Watts is required, while you iPad is not showing charging because it requires twice the power - Dave