A2663 A2552 Replacement Battery for Apple Watch Series 7 (41mm/45mm) Wholesale
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Models: A2663 (for 41mm) / A2552 (for 45mm).
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Capacity: 245mAh (A2663) / 296mAh (A2552) at standard 3.85V.
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Cell Chemistry: Premium Lithium-ion Polymer.
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Compatibility: 100% fit for Apple Watch Series 7, including precise flex cable alignment.
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B2B Advantage: Factory-direct pricing, strictly tested for cycle life, and low MOQ available for global repair depots.
Product Description
The A2663 and A2552 batteries are the specific power units designed for the 41mm and 45mm Apple Watch Series 7. Smartwatch chassis space is strictly limited. We manufacture these lithium-ion polymer packs to match exact original dimensions, ensuring a drop-in fit for technicians without housing modifications. The 245mAh (A2663) and 296mAh (A2552) capacities deliver standard operational runtimes. Each unit includes a pre-attached, machine-folded flex cable, eliminating manual bending during repair procedures and reducing the risk of connector damage. Compatible specifically with Apple Watch Series 7 models (A2473, A2474, A2475, A2476, A2477, A2478).
Technical Parameters
| Technical Parameter | 41mm Version | 45mm Version |
|---|---|---|
| Battery Model (P/N) | A2663 | A2552 |
| Compatible Watch | Apple Watch Series 7 (41mm) | Apple Watch Series 7 (45mm) |
| Rated Capacity | 245mAh | 296mAh |
| Nominal Voltage | 3.85V | 3.85V |
| Cell Chemistry | Li-ion Polymer | Li-ion Polymer |
| Flex Cable | Pre-installed, original layout | Pre-installed, original layout |
| Certifications | CE, RoHS, UN38.3, MSDS | CE, RoHS, UN38.3, MSDS |
Need a stable supply plan? Send your model list + quantities + destination. We’ll confirm lead time, shipping method, and compliance documents before you place the order.
Features & Advantages
✅ 🔋 Exact Capacity Matching
We output true 245mAh for the 41mm model and 296mAh for the 45mm model at 3.85V. This guarantees stable voltage curves and reliable everyday use, directly supporting Series 7 fast charging protocols.
✅ 🛡️ Integrated Protection IC
Wearable devices require strict thermal management. Our boards include dual IC protection to prevent overcharging, deep discharging, and short circuits, ensuring maximum safety on the user’s wrist.
✅ 📉 Rigorous Yield Control
Every batch passes load testing, internal resistance checks, and connector inspections. We keep defect rates below 0.3%, protecting your repair shop’s reputation from customer returns.
✅ 🏭 Factory-Direct Turnkey Supply
Avoid trading company markups. We supply these smartwatch batteries directly from our production lines. Whether you need small test batches for your service center or bulk pallets for regional distribution, our flexible MOQ meets your business demands.
Packing & Delivery
Lead Time & Shipping
In-stock items: Ship within 3 days
For standard replacement models with available inventory.Mass production orders: Ship within 7 days
For regular models under confirmed specifications and packaging requirements.Customized orders: Ship within 15 days
For custom cell configuration, size, wire/connector, PCB/BMS, labeling, or packaging.
Note: Final dispatch time depends on total quantity, model complexity, packaging requirements, and shipping compliance documents. We will confirm the estimated shipping date (ETD) after order confirmation.
Air freight (urgent, smaller volume)
Sea freight (cost-effective for bulk)
Rail / Truck (subject to destination)
Express channels
Documents available: UN38.3 / MSDS / Transport Test Report (if applicable)
Compliant packaging and carton labeling can be arranged based on the chosen shipping method.
EXW / FOB / CIF / DDP available
One-Stop Sourcing for the Complete Apple Ecosystem
-Streamline your supply chain. Consolidate your MacBook, iPad, iPhone, and Watch battery orders into a single shipment to reduce logistics costs and maximize your wholesale margins.
FAQ
Q1: Do these batteries support the Apple Watch Series 7 fast charging feature? Yes. Both the A2663 and A2552 replacement batteries handle the standard 3.85V and impedance requirements to fully support the Series 7 fast-charging hardware protocols.
Q2: What is the cycle life of these replacement batteries? Our high-density lithium-ion polymer cells maintain over 80% of their original capacity after 500 charge and discharge cycles, matching industry standard performance.
Q3: Are the flex cables pre-folded for installation? Yes. The flex cables are machine-pressed and pre-folded to the exact OEM dimensions. This saves technicians time and prevents accidental tearing during the repair process.
Q4: What is the defect rate of your Apple Watch batteries? We implement strict outgoing quality control, including internal resistance and load testing. Our defect rate is strictly controlled to less than 0.3%.
Q5: Can I order sample units before placing a bulk wholesale order? Yes. We support sample orders for repair shops and distributors to verify dimensions, capacity, and IC performance before committing to large volumes.
Q6: Do you provide UN38.3 and MSDS reports for shipping? Absolutely. We provide complete UN38.3, MSDS, and safe transport certifications to ensure smooth customs clearance and air/sea freight logistics.
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