The MacBook Retina 12-inch 2017 (A1534) uses a slim lithium-polymer battery (~41.4Wh) with adhesive-mounted cells attached directly to the bottom case.
Common issues include battery wear, failure to charge, service battery warnings, device overheating, or sudden shutdowns when unplugged.
Replacement requires advanced technique to safely remove adhesive using solvent or thermal methods without damaging the aluminum enclosure.
The OEM replacement battery includes proper controller chips and is fully compatible with macOS battery monitoring and charge cycles.
Repair time is typically 1–2 hours, and service includes a 6–12 month technical warranty with post-repair support for battery calibration or charging issues.