Genuine Apple 100% working used "
17" Apple MacBook Pro 2011 – GENUINE BATTERY A1383 – 020-7149-A / A1297 "A+

CONDITION:
A+" Battery hold at least +95% plus vs original new battery capacity.
Used Genuine Original Apple Part Tested 100% Working, 
Fresh Pull From Fully Working Unit. 
Tested using latest Battery diagnostic software. 

INCLUDES: 
BATTERY ONLY

IDENTIFYING NUMBER:
Apple Part #: 661-5960
Printed #:020-7149-A
Battery Model #: A1383
Voltage: 10.95V 95.0Wh 

COMPATIBILITY:
17" MacBook Pro Unibody A1297
MacBookPro8,3 Early 2011: MC725LL/A (2.2 GHz Core i7)
MacBookPro8,3 Early 2011: MC725LL/A (2.3 GHz Core i7)
MacBookPro8,3 Late 2011: MD311LL/A (2.4 GHz Core i7)

MacBookPro8,3 Late 2011: MD311LL/A (2.5 GHz Core i7)