My MBP 2.2Ghz was bought two years ago. One year ago it developed a fault in which is suddenly switched off when running on battery. The supplier gave me a new battery. Today while I'm not seeing the power die suddenly it does run out of charge real quick. istatpro shows my health now less than 50%. Here's from the profiler: Battery Information: Model Information: Serial Number: Sony-ASMB012-382b-755b Manufacturer: Sony Device name: ASMB012 Pack Lot Code: 0001 PCB Lot Code: 0000 Firmware Version: 0110 Hardware Revision: 0500 Cell Revision: 0303 Charge Information: Charge remaining (mAh): 2311 Fully charged: No Charging: No Full charge capacity (mAh): 2758 Health Information: Cycle count: 113 Condition: Check Battery Battery Installed: Yes Amperage (mA): -2067 Voltage (mV): 11751 Is there any way of improving the situation? I did try a calibration but after leaving it in sleep mode for > 24 hours it was still sleeping when I resumed - it showed 14% remaining power then dropped to 8% after one minute before I plugged the power back in. Is the health something I can improve or am I resigned to needing another new battery? Thanks.