We're sorry, but this item is no longer for sale. However, there may be more Batteries items available.
37 Watt-Hour Newer Technology NuPower
Battery Replacement Solution for 13-inch MacBook Air (2008 - 2009)
Mfr P/N: BAP89MBA37 OWC SKU: NWTBAP89MBA37
Discover the NuPower Battery Upgrade Advantage
- High performance: top tier Lithium-Ion cells for longer battery life
- Highly reliable: meets or exceeds factory battery specifications
- Compatible: meets all OEM sleep and power reduction modes
- Complete: includes all tools, installation guide, and DIY video
- Perfect Fit Solution: matches fit and finish of your Mac
- Safe: free of environmentally harmful metals and chemicals
- 1 Year Newer Technology Limited Warranty
Work and Play Longer Unplugged
A Perfect Fit Solution®
DIY? OWC Makes It Possible.
Powerful and Responsible
The Right Choice
- When installing a new battery in your laptop, OWC recommends you properly calibrate the power management system. See our article How to Calibrate a Mac Laptop's Power System for more information.
Includes
- (1) NewerTech NuPower Replacement Battery
- (1) Phillips Screwdriver
- (1) Installation Guide (download only)
- (1) Battery Conditioning Tips (download only)
- 1 Year Newer Technology Limited Warranty
Specs
Battery Technology
- Lithium-Ion
Equivalent Replacement of Apple Part Number
- A1245
Power Capacity (mAh)
- 5,000 mAh
Power Capacity (Wh)
- 37 Watt-hours
Voltage
- 7.4 Volts
Weight
- 1.2 kg (2.55 lbs)
Certifications
- CE
RoHS Compliant
- Yes
Country of Origin
- China
TAA Compliance
- No
Compatibility & Installation Videos
MacBook Air



Videos
Customer Reviews
Prompt delivery of first rate products. Instructional videos are great.
I would recommend this product to a friend!
- Reviewer:greg-37756
When you need Quality Goods and Service…OWC has both of them to help customer's out. Whether its products, service, instruction videos, you name it…we will do what we can to help you out.
A near perfect fit (it was a little tight) but it charged up fine and brought my original MacBook Air back to full performance. Battery has good life and so far is carrying on just fine. No surprises!
I would recommend this product to a friend!
- Reviewer:KerwoodDerby
- From:Wickford, RI
- Age:55-65
- Experience:Power User
- Owned Product:less than a month
I have a 10 year old MacBook Air. The battery went south and it was suggested I contact OWC, since Apple no longer services this product. There were great! They specified the product I needed based on Serial #, shipped it on time, provided an instructional video to replace the battery and everything went perfectly. I definitely would recommend the service!
I would recommend this product to a friend!
- Reviewer:MikeInOR
- From:Portland, OR
- Age:Over 65
- Experience:Power User
- Owned Product:1-3 months