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Rectangular black lithium-polymer battery with connector ribbon, labeled A1527 A1705 5300mAh 7.55V

PISKEKAT

PISKEKAT A1527 A1705 laptop battery for MacBook 12 Retina 2015-2017

SKU CH-F0ZW-MKH16

Replacement Li-Polymer battery for 12-inch MacBook Retina models from 2015 to 2017, rated 5300 mAh and 40.02 Wh with overcharge protection

  • Battery TypeLaptop Batteries
  • Li-Polymer 5300 mAh capacity powers the MacBook 12 Retina through meetings and travel
  • Up to 1500 recharge cycles gives more than five years of reliable daily use
  • Built-in overcharge and discharge protection keeps charging fast and power draw low
  • Japan-sourced electric core with upgraded 4.0 chip delivers real rated capacity safely
  • Fits MacBook Retina 12 inch A1534 A1705 Early 2015 Early 2016 Mid 2017 EMC 2746 2991 3099

Direct replacement for MacBook 12 Retina

This PISKEKAT A1527 A1705 battery fits MacBook 12 Retina models A1534 and A1705 from Early 2015, Early 2016 and Mid 2017. It matches EMC 2746, 2991 and 3099 part numbers. The lithium-polymer cell delivers 5300mAh at 7.55V for 40.02Wh capacity.

Thermal behaviour and power draw

The upgraded 4.0 cell uses a Japan-sourced electric core with an improved management chip. Overcharge and over-discharge protection circuits regulate current flow. Rated for 1500-plus recharge cycles, the pack maintains stable voltage during typical workloads without excessive heat buildup.

Build quality and daily use

A-grade cells and the revised chip design extend service life beyond five years under normal charging routines. The form factor aligns with the original battery compartment, so no adapter modifications are required. Users gain longer unplugged sessions for meetings, travel or study without carrying the charger.

Highlights

  • Li-Polymer 5300 mAh capacity powers the MacBook 12 Retina through meetings and travel
  • Up to 1500 recharge cycles gives more than five years of reliable daily use
  • Built-in overcharge and discharge protection keeps charging fast and power draw low
  • Japan-sourced electric core with upgraded 4.0 chip delivers real rated capacity safely
  • Fits MacBook Retina 12 inch A1534 A1705 Early 2015 Early 2016 Mid 2017 EMC 2746 2991 3099

Specifications

Battery TypeLaptop Batteries

Questions about this item

How do I install the PISKEKAT A1527 A1705 battery in my MacBook 12 Retina A1534, and which step do people often miss?

Power off the MacBook, remove the ten pentalobe screws on the bottom case, disconnect the trackpad flex cable, unplug the old battery connector from the logic board, swap in the new 5300 mAh Li-Polymer pack, reconnect the battery before refitting the trackpad cable, then replace the bottom case screws.

What maintenance or replacement will the PISKEKAT A1527 A1705 battery need over its lifetime?

The pack is rated for 1500+ recharge cycles, which typically covers 5+ years of daily use; after that the capacity will drop below useful levels and the whole battery must be replaced again.

What limit appears first when the PISKEKAT A1527 A1705 runs under sustained load?

The overcharge and over-discharge protection circuit will cut power if voltage exceeds safe thresholds during heavy continuous draw, preventing cell damage but stopping output until the load eases.

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