TREE.NB MacBook Air 13-inch (M1, 2020) Replacement Battery A2389/A2337 — 11.4V 55Wh with Smart Protection

TREE.NB A2389 A2337 is a brand‑new 11.4V, 55Wh Li‑polymer replacement battery designed to restore reliable runtime to the MacBook Air 13-inch (M1, 2020) models.

If your M1 MacBook Air shows reduced run time, unexpected shutdowns, or a battery condition warning, this TREE.NB OEM‑style replacement matches the factory power profile while adding smart protection features. It’s built to the same voltage and capacity as the original pack and is compatible with the commonly listed part numbers for the A2337/M1 13" lineup.

Will this battery work with my specific MacBook Air M1 model?

Yes — the pack is engineered for the 13‑inch MacBook Air model A2337 with the M1 processor (2020) and cross‑references standard Apple part numbers for easy identification. Be sure your machine matches one of the compatible identifiers before installing.

• Fits MacBook Air 13" A2337 (M1, 2020)
• Compatible part numbers: A2389, A2337, EMC 3598, 3ICP5/63/120
• Compatible SKU examples: MGN53LL/A, MGN83LL/A, MGN63LL/A, MGN93LL/A and related variants

How does this battery protect my MacBook and extend usable life?

The TREE.NB replacement integrates a smart circuit and safety features to guard against common battery faults. Those protections help prevent overcurrent, overcharge, overdischarge and abnormal temperature conditions.

• Built‑in smart chip for charge management and safety
• Overcurrent, overcharge and overdischarge protection
• Temperature monitoring to reduce risk during heavy loads

What performance and durability can I expect from this Li‑polymer pack?

This battery delivers the rated 11.4V and 55Wh capacity so macOS can report realistic runtime numbers after installation. The pack is rated for about 500 full recharge cycles under normal conditions, though actual lifespan depends on usage patterns and charging habits.

• Voltage: 11.4V; Capacity: 55Wh for original‑spec power delivery
• Li‑polymer chemistry for compact, lightweight design
• Estimated ~500 recharge cycles; real-world life varies with use

How easy is installation and what support is available if I have questions?

Installation requires opening the MacBook Air’s lower case and disconnecting the old pack; if you’re comfortable with small electronics and proper tools, it’s a straightforward swap. TREE.NB provides customer support and aims to respond within 24 hours to pre‑ and post‑sale inquiries.

• Requires Phillips/Torx and spudger for safe removal and replacement
• TREE.NB customer support reachable via Amazon messages
• Response window: typically within 24 hours

This replacement battery is CE and FCC certified and manufactured with high‑quality materials, top circuit boards and a smart chip to comply with safety and environmental guidelines. It’s a brand‑new unit intended to match Apple’s original battery specifications without altering system behavior.

Who is this for? This TREE.NB A2389/A2337 pack is for MacBook Air 13‑inch (M1, 2020) owners who need to replace a degraded or failing battery and want a direct‑spec, smart protected Li‑polymer swap that restores run time. It’s suitable for DIY installers with the right tools, technicians performing repairs, and users seeking a cost‑efficient alternative to factory replacement while retaining standard capacity and safety features.