Thank you for contacting Fixya. This is Anil.
I understand that you want to know the Battrey model number for Acer Aspire AS77362 and AS 5534-1121.
I will be glad to help you with it.
Roger, you can find the Battrey part number and Brand name from the battrey lable itself. Remove the battrey from laptop and check on the sticker of the Battrey. As far as store, I would advise you to contact MundoCorp at www.MundoCorp.com
or call them at 1865-940-5040 between 9:00 am - 5:00 pm Mon-Fri EST. Please find other stores below:
Capital Data - 1800-999-4409
All parts for new and old units www.capitaldatausa.com
Notebook parts www.kahlon.com
Tiger Direct - 1-800-8300
Acer Direct Phone : 1-888-278-7500
I believe the above resolution should resolve the issue, however, if the issue still persists, please contact us. We will be glad to help you.