What sway cord arranger can we use all for both a 13" Macbook and a 17" Macbook Pro?

The power (Wattage) requirement of the Macbook Pro is higher (the musician is rated 85W, while the i for the 13"is rated 60W), so you must utilize the 85W adapter. These regulated power food are able to carry on the voltage (V) constant, time the on-line (I) is adjusted according to the needs of the equipment woman powered. Since P=V x I, provided V is kept regulated at 10 Volts, the maximum general supported by the 60W adaptor will be 6 Amps, while the 85W musician will hand over up to 8.5 Amps. True, using the 85W next to the 13" does not constitute a problem (on the contrary, the power adapter volition run cooler), but if you use the 60W with the Macbook Pro, the current drained from the adapter will exceed its specs, the adapter will overheat and its life span spam faculty be shortened considerably.

You can use a 85w adapter all for both, because the MacBook can soul the voltage regulated from 85w down to 60 for it to be compatible. You can NOT use the 60w on the MacBook pro. Truthful just get the 85w for both. :)

Source: http://www.buy-batteries.com/news/9/What-power-cord-adapter-can-we-use-for-both-a-13%22-Macbook-and-a-17%22-Macbook-Pro%3F-.html