A2389 A2337 Battery Replacement for MacBook Air 13 in M1 2020

In this review the A2389 A2337 battery replacement is examined for MacBook Air 13 in M1 2020 owners who need a direct swap with dependable capacity. The bottom line: this replacement offers the correct voltage and rated 4380mAh/49.9Wh capacity in a Li-Polymer pack built to match common compatible part numbers, making it a practical choice for users prioritizing real capacity and longer cycle life over OEM price. It is a straightforward option for someone servicing an out-of-warranty machine and wanting clear compatibility with A2337 model variants.

Key Features

• Exact model fit: Lists the A2389 battery model and explicit compatibility with A2337 MacBook Air 13 in M1 2020 variants, which helps avoid fitment surprises.
• Rated capacity: The pack is specified at 4380mAh/49.9Wh, giving a clear reference for expected run time compared with the original battery.
• Correct voltage: A nominal 11.39V rating matches the original design requirements so the laptop firmware and power management work normally.
• Battery chemistry: Li-Polymer construction delivers a slim profile and typical safety advantages for laptop installations.
• Safety certifications: CE, FCC, RoHS and UL certifications are claimed, supporting safer charge and discharge behavior in typical use.
• Longevity: The manufacturer notes 1000+ recharge cycles and a reinforced circuit board for stable charging control over the battery life.

Who It's For

This replacement suits technicians, DIY MacBook Air owners, and small repair shops who need a compatible, full-capacity battery for the M1 13 in A2337 2020 series. The explicit part number matches mean it is useful when the original battery shows reduced runtime or the system reports service battery warnings.

Users who expect official factory warranty support or require manufacturer-authorized parts for warranty claims should look elsewhere; this is a third-party replacement focused on real capacity and practical serviceability rather than OEM branding.

Pros & Cons

Pros

• Direct compatibility with many listed part numbers, reducing installation uncertainty.
• Clear capacity and voltage specifications (4380mAh/49.9Wh, 11.39V) so buyers know what to expect.
• Claims of certifications and a better circuit board for stable charge and discharge behavior.
• Manufacturer support with 30 day refund and 12 month replacement policy provides post-sale reassurance.

Cons

• As a third-party replacement, it is not an Apple-branded part and may not satisfy those requiring OEM-sourced components.
• Performance claims such as 1000+ cycles are manufacturer stated and may vary with user habits.

Specifications

Battery Model	A2389
Compatible Laptop Model	MacBook Air 13 in A2337 M1 2020
Capacity	4380mAh / 49.9Wh
Voltage	11.39V
Battery Type	Li-Polymer
Compatible Part Numbers	MGNA3LL/A, MGND3LL/A, MGNE3LL/A, MGN53LL/A, MGN63LL/A, MGN73LL/A, MGN83LL/A, MGN93LL/A

Our Verdict

The A2389 replacement is a sensible, value-oriented option for M1 MacBook Air 13 in A2337 owners who need a reliable swap with clear capacity and matching voltage. It delivers practical safety certifications and a stated long cycle life, making it a good buy for repairs and out-of-warranty maintenance when OEM branding is not required.

Frequently Asked Questions

Will this battery fit my MacBook Air 13 in M1 A2337?
Yes, it is specified for the MacBook Air 13 in M1 model A2337 and lists the common compatible part numbers to confirm fit.

What is the battery capacity and voltage?
The pack is rated at 4380mAh (49.9Wh) with a nominal voltage of 11.39V.

What warranty or support is provided?
The manufacturer offers a 30 day refund policy and 12 months replacement, plus 24h email support and a maintenance guide.