Would using a 17"MBP power adapter on a older MacBook kill the battery?

Discussion in 'MacBook' started by YsoSerious, Mar 26, 2011.

  1. YsoSerious macrumors 6502


    Oct 8, 2008
    My kids used the wrong power adapter on an older MacBook and now the battery is dead. Battery less the 6 months old that I purchased from ifixit.com brand new. Don't know if it's related to it dying on me.
  2. GGJstudios macrumors Westmere


    May 16, 2008
    No, the adapter won't kill the battery. It may be a defective battery, or it may have been improperly cared for. This should answer most, if not all, of your battery questions:
  3. khadgar2k1 macrumors member

    Jan 30, 2008
    does using a higher voltage charger not effect the battery? what does a larger laptop need extra power for? im wondering about this issue too
  4. Ccrew macrumors 68020

    Feb 28, 2011

    It's not a higher voltage charger, just a higher wattage. Allows a larger battery pack not to overheat the charger. Using an 85 watt charger on a machine that only needs a 65 watt won't cook the battery. Using a 65watt charger on a machine that needs an 85 will make the charger hotter than a firecracker.

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