High-capacity OEM replacement batteries for Apple devices including MacBook series, iPad series, iPhone series, and iWatch series.
Bulk Apple Watch batteries being packed in anti-static trays at Balder Power China factory for wholesale.

Apple Watch Battery Wholesale China – Series 1 to Ultra Factory Direct

Source premium Apple Watch Battery Wholesale China solutions directly from Balder Power. As a specialized Apple Watch Battery Manufacturer, we deliver high-density pure cobalt cells engineered for a strict 1:1 precision fit, effectively eliminating “screen pop-up” risks. Our catalog covers the complete lineup from Series 1 to the latest Apple Watch Ultra, featuring stable voltage and optional waterproof adhesive kits for professional repair results. Partner with us for competitive factory pricing, flexible low MOQs, and dedicated OEM Apple Watch Battery services tailored for global distributors.

Premium Replacement Battery for Apple Watch Series (Ready to Ship)

Our comprehensive Replacement Battery for Apple Watch lineup covers every generation, from the legacy Series 1 to the latest high-demand Ultra models. Unlike generic market goods, Balder Power batteries are engineered with 100% Pure Cobalt (LiCoO2) cathodes. This premium chemistry allows us to create a High Capacity Apple Watch Battery that delivers 10%-15% more runtime than aged OEM cells while maintaining the exact physical dimensions required for a safe fit.

  • Zero-Cycle Cells: Guaranteed brand new, ensuring 100% battery health visibility.

  • Inventory Status: We maintain stable stock for fast global dispatch (24-48 hours).

  • Installation Ready: Optional waterproof adhesive kits are available for bulk orders to ensure IP-rated water resistance after repair.

Wholesale Apple Watch Battery Model List & Compatibility (Updated Feb 2026)

As a specialized Apple Watch Battery Manufacturer, we provide a complete catalog. Below is our current production list available for Apple Watch Battery Wholesale China orders. All models support OEM Apple Watch Battery customization (private labeling).

NO.Model No.Rated Voltage(V)Rated Capacity (mAh)Compatible Model
1A15783.8V205mAhS1/38mm
2A15793.78V246mAhS1/42mm
3A17603.77V273mAhS2/38mm
4A17613.8V334mAhS2/42mm
5A18483.82V279mAhS3-Cellular/38mm
6A18503.82V352mAhS3-Cellular/42mm
7A18473.81V262mAhS3-GPS/38mm
8A18753.82V342mAhS3-GPS/42mm
9A20583.81V224.9mAhS4/40mm
10A20593.81V291.8mAhS4/44mm
11A22773.85V245mAhS5/40mm
12A21813.81V296mAhS5/44mm
13A23453.85V265.9mAhS6/40mm
14A23273.85V303.8mAhS6/44mm
15A26633.85V284mAhS7/41mm
16A25523.85V309mAhS7/45mm

Beyond OEM Standards: The Balder Power Apple Watch Batteries Advantages

In the wearable repair market, precision is everything. A battery that is even 0.2mm too thick can cause the screen to pop out or shatter the display glass. Balder Power goes beyond basic standards to solve these critical issues:

  • Precision Laser Cutting (1:1 Fit): We utilize automated laser technology to ensure Zero Thickness Deviation. Our batteries fit perfectly flush into the watch housing, eliminating “screen lift” risks.

  • Advanced TI Chip Solution: We integrate original-grade Texas Instruments (TI) gas gauges to ensure accurate percentage reading and prevent sudden shutdowns in cold weather (0°C).

  • Anti-Swelling Technology: Optimized electrolyte formulas significantly reduce gas generation, protecting the watch’s delicate internal components and screen from pressure damage.

True High-Density Cobalt

Uses 100% Pure Cobalt (LiCoO2) chemistry. Essential for maximizing energy in compact watch spaces, delivering 15-20% more runtime than aged OEM cells.

Original TI Gas Gauge IC

Powered by Texas Instruments (TI) solutions. Ensures accurate percentage tracking on the tiny watch screen and prevents sudden shutdowns at low voltage.

800+ Cycle Life

Engineered for daily wear durability with 800+ charging cycles. Guaranteed 0-Cycle brand new stock that maintains peak health for years.

All-Weather Reliability

Optimized electrolyte formula ensures stable discharge from -10°C to 50°C. Critical for preventing power loss during outdoor workouts or winter runs.

Zero-Error Flex Cable

High-toughness micro flex cables with gold-plated connectors. Designed to withstand the tight folding required during complex Watch installations

1:1 Precision Original Fit

Automated laser cutting guarantees Zero Thickness Deviation. Fits perfectly flush in the housing, eliminating the #1 risk of "screen pop-out".

Factory-Direct OEM Services

Direct supply from Dongguan. We support Low MOQ mixed orders (S1 to Ultra), private labeling, and optional waterproof adhesive kits for bulk buyers.

13-Month Warranty

Strict QC protocols keep our RMA rate below 0.1%. Every Watch battery is backed by a comprehensive 13-Month Warranty for your peace of mind.

Factory Experience & Quality Control (Built for Global Supply Chain)

Partnering with Balder Power means working directly with a verified Apple Watch Battery Manufacturer, not a middleman. We understand the specific needs of wholesale distributors and repair chains:

  • 72-Hour Aging Test: Every single cell undergoes a rigorous aging process before shipment to filter out any potential voltage drops or defects.

  • Low MOQ & Flexible Orders: Whether you need 50 pieces for a trial or 5,000 pieces for a chain, we support flexible Apple Watch Battery Wholesale China solutions.

  • DDP Shipping Services: We handle the complex logistics of dangerous goods (batteries). We offer DDP (Delivered Duty Paid) shipping to the USA, Europe, and the Middle East, so you receive goods at your door with zero customs hassle.

1
Incoming Material Inspection
Inspect cells, PCM boards, connectors, and key components before production.
2
Capacity & IR Testing
Test capacity and internal resistance to ensure stable and consistent performance.
3
Protection Board (PCM) Testing
Verify PCM safety functions including over-charge, over-discharge and over-current protection.
4
Aging & Stability Screening
Run aging checks to filter early failures and improve long-term reliability.
5
Batch Consistency Control
Grade and sort products to keep each shipment consistent in quality and output.
6
Final QC Before Packing
Check appearance, labeling and key functions before packing and shipment.

Complete Your Repair OR Retail Inventory: More Apple Battery Solutions

-Save on shipping by consolidating your order. Explore our premium battery catalog for the entire Apple ecosystem.

MacBook Batteries Lineup
iPad Pro & Air Series Batteries Lineup
iPhone Batteries Lineup
Apple Watch Batteries Lineup

FAQs for Our Wholesale Apple Watch Replacement Batteries:

1. Does your Apple Watch battery fit perfectly without pushing the screen out?

Yes. This is our top manufacturing priority. Unlike cheap alternatives that are often 0.2mm too thick, Balder Power uses automated laser-cutting technology to ensure Zero Thickness Deviation. Our batteries fit flush into the housing, eliminating the risk of "screen lift" or pressure spots on the display after reassembly.

2. Do you supply waterproof adhesive strips with the batteries?

Yes, we understand that maintaining water resistance is crucial for Apple Watch repairs. We can include high-quality, pre-cut waterproof adhesive kits with your Apple Watch Battery Wholesale order upon request. This allows your technicians to restore the IP-rated seal efficiently.

3. Are your batteries "Pure Cobalt" or "Ternary Lithium"?

We exclusively use 100% Pure Cobalt (LiCoO2) for all our Apple Watch batteries. Due to the tiny physical space in a watch, only pure cobalt offers the high energy density required to match or exceed OEM capacity. We do not use cheaper Ternary (NCM) materials as they cannot provide stable voltage for wearables.

4. Do you have batteries for the latest Series 9 and Ultra?

Absolutely. As a leading Apple Watch Battery Manufacturer, our catalog is updated monthly. We stock replacement batteries for the entire lineup: Series 1, 2, 3, 4, 5, 6, 7, 8, 9, SE, and the high-demand Apple Watch Ultra (49mm).

5. How do you handle shipping for dangerous goods (batteries)?

We take care of the logistics for you. We offer DDP (Delivered Duty Paid) shipping services to the USA, Europe, UK, and the Middle East. This means we handle the customs clearance and duty fees, delivering the goods directly to your warehouse door safely.

6. Can I mix different models in one order (Low MOQ)?

Yes, we support flexible businesses. You don't need to order 500 pieces of one model. You can mix different models (e.g., 20x Series 4, 30x Series 7, 10x Ultra) in a single shipment to meet our low MOQ requirements and test the market.

7. What is your warranty policy for defective items?

We offer an industry-leading 13-Month Warranty. If any battery fails to hold a charge or shows unusual degradation within this period, we provide free replacements in your next order. Our actual factory RMA rate is currently below 0.1% due to strict 72-hour aging tests.

8. Do you support OEM branding for repair or retail chains?

 Yes. For larger orders, we offer full OEM Apple Watch Battery services. We can print your company logo on the battery label, customize the retail packaging, and even laser-engrave batch codes for your internal inventory tracking.

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WhHan, China

3rd Floor, Building 1, Phase III, International Enterprise Center,Guanggu Avenue, East Lake New Tech Zone, Wuhan City, Hubei Province, China