TREE.NB MacBook Air 13" Replacement Battery A1466

TREE.NB A1405/A1466 is a direct-replacement lithium-ion battery built to restore runtime for compatible MacBook Air 13" models from 2010–2017.

This replacement pack is engineered as a one-to-one swap for a range of MacBook Air 13-inch model numbers (A1369, A1377, A1405, A1466, A1496 and related Apple spare numbers). It uses grade-A cells, a built-in protection circuit, and complies with CE and RoHS standards so you get predictable charging behavior and stable performance across typical laptop tasks. The battery is new from a professional manufacturer and comes with vendor support if you need setup help.

Which MacBook Air models does this battery fit?

The TREE.NB battery fits several 13-inch MacBook Air revisions released between late 2010 and 2017. Confirm your MacBook’s model identifier (About This Mac) against the listed part numbers before purchasing. Compatibility covers common Apple part numbers and model SKUs used for those generations.

• Compatible Apple model IDs: A1369, A1377, A1405, A1466, A1496.
• Fits MacBook SKUs like MC503LL/A, MD760LL/A, MD761LL/B and similar.
• Replaces Apple part numbers 661-5731, 661-6055, 020-7379-A, 020-8143-A.

How long will runtime and battery life last after installation?

This battery typically provides 1.5–3 hours of operation under average workloads; actual runtime depends on screen brightness, apps in use, and power settings. The pack is rated for up to about 500 charge cycles before noticeable capacity loss, which aligns with common lithium-ion lifespan expectations.

• Expected operation: roughly 1.5–3 hours under normal use.
• Cycle life: up to ~500 recharge cycles over the battery’s lifetime.
• Performance varies with workload, settings, and device age.

What safety and quality features are included?

TREE.NB batteries use grade-A cells and include a built-in circuit protection board to help prevent overcharge, over-discharge, and short circuits. The product is manufactured to meet CE and RoHS compliance and shipped as a brand-new unit from a professional battery supplier.

• Grade-A cells for more consistent charge/discharge characteristics.
• Integrated protection circuitry for electrical safety and stability.
• CE and RoHS compliance; professional manufacturer QA processes.

How easy is installation and what support is available?

Installation is a direct physical replacement of the original battery and requires basic tools and careful handling of internal connectors. TREE.NB offers 24/7 email support if you need guidance during installation or have product questions after delivery.

• Direct swap design matches original mounting points and connector type.
• Requires small Phillips and Torx tools and static-safe handling.
• 24/7 customer email support for troubleshooting and questions.

Who is this for: This replacement battery is for MacBook Air 13-inch owners whose original battery shows poor runtime, shutdowns, or charging problems and who want an affordable OEM-compatible option. It's aimed at users comfortable with a simple internal replacement or those who will have a service technician perform the swap. If you need sustained everyday portability again without replacing the entire laptop, this battery restores usable laptop life while keeping original hardware intact.