iPhone 12 / 12 Pro Pairing Ready Replacement Battery

The iPhone 12 / 12 Pro pairing ready battery is an aftermarket replacement cell with a pre-paired authentication chip. As a result, iOS reads the battery as recognised after correct installation and reports the diagnostics shown below.

What status will I see in iOS after installation?

iPhone 12 / 12 Pro pairing ready battery overview

This iPhone 12 / 12 Pro pairing ready battery fits Apple iPhone 12 (model numbers A2172, A2402, A2403, A2404) and iPhone 12 Pro (A2341, A2406, A2407, A2408). Apple uses the same physical 2815 mAh cell in both models, so the same replacement assembly suits the standard iPhone 12 and the iPhone 12 Pro from any region.

Specifically, the cell is a zero-cycle aftermarket Li-ion pack rated at 2815 mAh, 3.83 V nominal, 4.45 V charging cutoff, and 10.78 Wh, matching the original Apple cell specifications. As a result, runtime after installation tracks closely with the factory experience.

In particular, the pre-paired authentication chip is the differentiator. Since the chip arrives factory-installed with a valid identifier, iOS reports “Genuine Used Apple part” in Parts & Service History instead of the Unknown Part warning. In addition, Battery Health displays a real percentage in Settings, and Repair Assistant completes without any chip transfer or EEPROM programming step.

Why this matters for the iPhone 12 / 12 Pro

The iPhone 12 series introduced the first generation of Apple’s strict battery-pairing checks. Because of that, a standard aftermarket battery without a paired chip will trigger the Unknown Part warning in Settings and hide Battery Health on the iPhone 12 and 12 Pro. By contrast, this pairing ready battery ships with a pre-paired chip, so the system reads the cell as a recognised part and shows the expected diagnostics. To confirm Apple-published specifications, see the Apple iPhone 12 Pro technical specifications or the iPhone 12 Pro listing on GSMArena.

NZ stock, dispatch, and in-house fitting

GA Tech NZ has supplied spare parts and repair services since 2017. Because GA Tech NZ holds local stock, weekday orders placed before 2pm ship the same day with tracked overnight delivery nationwide. In addition, buyers who want a professionally fitted result can book in-house iPhone 12 / 12 Pro battery replacement. Meanwhile, for related parts and repair tools, browse the iPhone parts and repair tools categories.

iPhone 12 / 12 Pro pairing ready battery specifications

Compatible iPhone 12 / 12 Pro model numbers

This pairing ready battery fits the following Apple iPhone 12 and iPhone 12 Pro model numbers. Apple uses the same physical 2815 mAh cell across both models worldwide, so a single battery suits every regional variant of the pair.

• iPhone 12: A2172 (US), A2402 (CA / JP), A2403 (CN), A2404 (Global)
• iPhone 12 Pro: A2341 (US), A2406 (CA / JP), A2407 (CN), A2408 (Global)

To confirm your model number before ordering, open Settings > General > About on your iPhone, then scroll down to Model Number. If the number starts with M or N, tap it once to reveal the A-number.

How to install the iPhone 12 / 12 Pro pairing ready battery

Generally, this installation guide is for trained technicians and experienced DIY repairers. Battery replacement requires opening the iPhone chassis and disconnecting the display, so GA Tech NZ recommends professional fitting for anyone who is not confident with full iPhone 12 / 12 Pro disassembly. In addition, GA Tech NZ offers in-house iPhone 12 / 12 Pro battery replacement through the phone repair services category.

1. Prepare the workspace and tools. Use a clean, dust-free bench, a precision screwdriver kit, suction cup, opening picks, and plastic spudgers.
2. Power off the iPhone and open the chassis. Remove the two pentalobe screws beside the Lightning port, apply gentle heat around the display perimeter, and use the suction cup to lift the screen carefully.
3. Disconnect the battery and display. Remove the logic board shield, disconnect the battery flex first to isolate power, then disconnect the display and front sensor flex cables.
4. Remove the old battery. Pull the adhesive release strips slowly outward at a low angle to release the original battery from the chassis. Avoid puncturing the cell.
5. Seat the new pairing ready battery. Peel the protective backing from the pre-installed adhesive on the new battery, then place the cell in position. Take care not to crimp or fold the flex cable.
6. Reconnect and test before closing. Reconnect the battery flex, display flex, and front sensor flex. Power on the iPhone, then open Settings > Battery > Battery Health and verify that the percentage and “Genuine Used Apple part” status both display correctly.
7. Close the chassis. Reattach the logic board shield, reseal the display with fresh display adhesive (sold separately), and refit the two pentalobe screws to complete the install.

Compliance and testing

First, the iPhone 12 / 12 Pro is named in the supplier’s CE Declaration of Conformity (NCT25007416XE1-1, EU Council EMC Directive 2014/30/EU) and FCC Supplier’s Declaration of Conformity (NCT25007419XE1-1, FCC Part 15 Subpart B / ANSI C63.4:2014), both issued by NCT Testing Technology under CNAS L8281 accreditation. In addition, the supplier holds standard lithium-battery transport and safety documentation, including UN38.3 test reports, MSDS, 1.2M drop test, and air transport identification under CNAS-accredited testing. As a result, the battery line ships with the compliance paperwork required for safe NZ courier transit.

Frequently asked questions

Does this battery show 100% health on iOS 26?

Yes, the iPhone 12 / 12 Pro pairing ready battery displays 100% battery health in Settings > Battery > Battery Health when fitted correctly. We have tested it in-house on iPhone 12 and iPhone 12 Pro across iOS 18 through iOS 26, and the percentage appears consistently because the pre-paired authentication chip keeps the reading stable across iOS updates.

Will it trigger the Unknown Part or “unable to verify” warning?

No. The battery carries a pre-paired authentication chip with a valid identifier, so iOS reads it as a “Genuine Used Apple part” in Parts & Service History. As a result, the Unknown Part warning and the unable-to-verify message do not appear after correct installation.

Do I need to transfer the original chip or run any programming?

No. The pre-paired authentication chip ships factory-installed on the new battery cell, so no chip transfer, EEPROM programming, JC-style restoration tools, or pairing software is required. Instead, install the battery with the standard repair workflow, reconnect the flex cable, and iOS recognises the new pack on first boot.

Is this a genuine Apple battery?

No. This is not a genuine Apple battery replacement. The battery cell is aftermarket and manufactured by the supplier, not by Apple. However, the pre-paired authentication chip ships factory-installed on the cell, and that chip pairing is what allows iOS to display 100% health and the “Genuine Used Apple part” status after correct installation.

Which iPhone 12 / 12 Pro model numbers does it fit?

This pairing ready battery fits iPhone 12 (A2172, A2402, A2403, A2404) and iPhone 12 Pro (A2341, A2406, A2407, A2408). Since Apple uses the same physical 2815 mAh cell in both models worldwide, a single replacement assembly suits both. Confirm your A-number in Settings > General > About before ordering.

What warranty applies?

GA Tech NZ provides a 6-month warranty against manufacturing defects on this iPhone 12 / 12 Pro pairing ready battery. However, the warranty does not cover physical damage, installation errors, or water damage. In addition, GA Tech NZ accepts change-of-mind returns on unopened parts in new unused condition within 7 days of receipt under the GA Tech NZ terms and conditions.