Wholesale 3279mAh Diagnostic Replacement Battery for iPhone 14 Repair
Product Specifications
- Compatible Model
- Battery Version
- Voltage
- Capacity
- Package
Contact Supplier
Product Highlights
- Diagnostic Function Support - Designed to support battery and parts-status communication after correct installation and configuration.
- Parts Status Display - Supports the 'Genuine' battery status for compatible repair procedures.
- No Error Message - Stable diagnostic communication helps reduce battery-related system warnings.
- No Tag on Flex - Direct-fit flex cable design without an additional tag attached to the flex.
- 3279mAh Rated Capacity - Standard-capacity replacement solution for iPhone 14 repair and refurbishment.
- 3.87V / 12.68Wh Output - Matched electrical specifications for stable device operation.
- No Pop-Up Design - Designed to avoid unknown-part pop-up messages after proper installation.
- Direct-Fit Connector - Precise flex cable and connector design for professional installation.
- 100% Pre-Shipment Testing - Capacity, voltage, internal resistance and basic function checked before shipment.
- Repair-Shop Oriented - Suitable for repair shops, refurbishment centers, parts wholesalers and distributors.
Product Attributes
- Customization
- Available
- Capacity for Battery
- >2600mAh
- Compatible Brand
- iPhone
- Model NO.
- 1/CP5/45/87
- Voltage
- 3.5-4.0V
- Battery Type
- Lithium-Ion Battery
- Power Source
- Electric
- Certification
- CE, PSE, MSDS/Un38.3
- Socket Type of Charger
- No
- Packaging
- Simple
- Quality Inspection
- 100% Tested Before Shipment
- Safety Protection
- Overcharge, Over-Discharge, Overcurrent and Short-
- Cell Grade
- New a-Grade Cell
- Warranty
- 12 Months
- Cycle Life
- ≥800 Cycles Under Standard Test Conditions
- Battery Function
- No Pop up, No Error Message, No Tag on Flex, Genui
- Compatible Model
- iPhone 14
- Transport Package
- Individual Protective Bag and Neutral Box
- Specification
- 3279mAh / 3.87V / 12.68Wh
- Trademark
- ESC/OEM/ODM
- Origin
- Guangdong, China
- Package Size
- 85.00cm * 15.00cm * 10.70cm
- Package Gross Weight
- 0.080kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of Wholesale 3279mAh Diagnostic Replacement Battery for iPhone 14 Repair
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Product Description



Supports battery recognition in the device system and displays the battery as genuine after correct installation.
2. No Pop-Up Warning
Designed to reduce unknown-part notifications and battery-related warning pop-ups during professional repair.
3. 100% Battery Health Display
Supports battery health information display, providing a more complete replacement experience for end users.
4. 3279mAh Stable Capacity
Provides 3279mAh capacity, 3.87V nominal voltage and 12.68Wh energy for stable daily performance.
5. Professional Repair Application
Suitable for mobile phone repair shops, refurbishers, wholesalers, distributors and after-sales service providers.
6. Reliable Battery Structure
Manufactured with a stable lithium-ion cell, matched diagnostic flex cable and integrated protection design.
7. Bulk and OEM Support
Available for sample testing, bulk purchasing, customized labels, packaging and private-label projects.
Feature | Specification |
Product Name | For iPhone 14 Diagnostic Battery |
Product Type | Mobile Phone Replacement Battery |
Compatible Model | iPhone 14 |
Battery Category | Diagnostic Battery |
Battery Chemistry | Lithium-ion (Li-ion) |
Rated Capacity | 3279mAh |
Nominal Voltage | 3.87V |
Rated Energy | 12.68Wh |
Battery Function | NO POP UP ,NO ERROR Message,NO Tag on Flex parts show Genuine |
Warranty | 12-Month Quality Warranty |
Installation Type | Internal Built-in Battery |
Connector Type | Flexible Cable Connector |
Battery Structure | Slim Lithium Polymer Battery Pack |
Certification | CE, PSE,MSDS,UN38.3 |
Recycling Mark | Li-ion Recyclable |
Safety Warning | Do Not Disassemble |
Puncture Warning | Do Not Puncture or Crush |
Cycle life | ≥800 Cycles Under Standard Test Conditions |
Fire Safety Notice | Potential Risk of Fire or Burning |
Service Requirement | Authorized Service Provider Only |
Application | Mobile Phone Repair / Replacement |



Built for mobile phone repair shops,refurbishers,distributors and battery wholesalers. Every battery is tested before shipment for stable output and installation consistency. Reliable factory supply, OEM/ODM support, flexible mixed-model orders, global shipping and responsive after-sales service make bulk sourcing easier and safer.

We provide reliable battery solutions based on different device requirements, including battery capacity, voltage, cell quality, protection circuit design, connector compatibility, battery structure, charging performance, and safety standards.
ESC serves repair shops, wholesalers, distributors, e-commerce sellers, refurbishment companies, private label brands, and electronic parts suppliers worldwide. With strict quality control, professional testing processes, and OEM/ODM customization support, we help customers build stable battery supply chains from sample approval to mass production.
Our goal is to provide reliable replacement batteries with consistent performance, competitive factory pricing, and long-term supply support for global repair and electronics markets.

Yes. We support sample orders for mobile phone batteries, iPad batteries and MacBook batteries. You can test battery capacity, performance, compatibility and quality before placing a larger order.
Q2. Can I use my own logo or packaging design?
Yes. We provide OEM/ODM customization services, including custom logos, battery labels, packaging boxes, user manuals, barcodes and other branding materials for repair shops, distributors and private label brands.
Q3. Are you a factory or a trading company?
We are a lithium battery supplier specializing in battery development, manufacturing support, quality control and global export. We provide replacement batteries and customized battery solutions for mobile devices, including smartphones, tablets and laptops.
Q4. What battery products do you mainly supply?
We mainly supply replacement batteries for smartphones, iPads and MacBooks, including iPhone batteries, iPad batteries and MacBook battery packs. We also support customized lithium battery solutions for electronic devices and special applications.
Q5. Which device models can you provide batteries for?
We support battery solutions for various models of smartphones, tablets and laptops, including iPhone series, iPad series, MacBook series and other popular electronic devices. Model compatibility can be confirmed based on device model, battery model or original battery photos.
Q6. Can you provide high-capacity replacement batteries?
Yes. We provide standard capacity and upgraded capacity battery solutions according to device requirements. Battery performance, safety protection and compatibility are tested before shipment to ensure reliable replacement performance.
Q7. Can you customize batteries for specific models or projects?
Yes. We support customized battery solutions based on battery size, capacity, voltage, connector, protection circuit, packaging and branding requirements. We can help customers develop new battery products from samples to mass production.
Please provide the device model, original battery model, battery dimensions, capacity requirement, quantity, connector information and product photos if available. More detailed information helps us provide accurate battery specifications and quotation.
Q9. What is the usual production lead time?
For regular stock batteries, shipment can usually be arranged within 3–7 days.
For bulk orders, production and delivery usually take 7–15 days.
For customized battery projects, lead time is usually 15–30 days depending on battery design, materials, testing and packaging requirements.
Q10. What quality control do you provide?
We perform capacity testing, voltage testing, charging and discharging tests, internal resistance testing and appearance inspection before shipment. Each battery is checked to ensure stable performance and reliable quality.
Q11. Who are your main customers?
We mainly serve mobile phone repair shops, tablet repair businesses, laptop repair centers, electronics wholesalers, distributors, e-commerce sellers, private label brands and battery retailers worldwide.
Q12. Can you provide bulk supply and long-term cooperation?
Yes. We support stable bulk supply, competitive pricing, OEM branding and long-term cooperation for distributors, repair networks and electronic product suppliers.
Q13. How do you ensure battery compatibility with my device?
We confirm compatibility based on the original battery model, device model, battery size, connector type and electrical specifications. Before shipment, we conduct quality checks to ensure the replacement battery fits and works properly with the target device.
Q14. Do your batteries include protection systems?
Yes. Our mobile phone, iPad and MacBook batteries are equipped with protection circuits to help prevent overcharging, over-discharging, over-current, short circuits and abnormal temperature conditions, improving safety and reliability.
Q15. Can you supply batteries for repair shops and wholesalers in bulk?
Yes. We provide bulk supply solutions for repair shops, distributors, wholesalers and e-commerce sellers. We support stable inventory, competitive pricing, customized packaging and long-term cooperation.
About the Supplier
This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASI262648". Items marked "" are certified.
Company Profile
1. Company Story
AOVOLT started with consumer lithium battery applications, including batteries for smartphones, tablets, laptops, gaming devices and portable electronics. This early experience helped us build strong expertise in compact battery structure, cell selection, BMS protection and mass production quality control.
As market demand expanded toward electric mobility, industrial electrification and lead-acid to lithium replacement, AOVOLT developed into a custom battery pack manufacturer focused on LiFePO4, lithium-ion and sodium-ion battery solutions.
Today, AOVOLT serves global B2B customers with custom battery packs for electric mobility, drones, power tools, robots, AGVs, AMRs, marine power, outdoor energy and industrial equipment. We design each battery solution based on real application needs, including voltage, capacity, discharge current, BMS, casing, connector, charger, communication and working environment.
2. What We Do
What We Do
Electric Mobility Battery
AOVOLT develops custom lithium battery packs for e-bikes, electric motorcycles, electric tricycles, low-speed vehicles, golf carts and battery swapping systems.
Drone Battery
AOVOLT provides lightweight and high-discharge battery packs for FPV drones, agricultural spraying drones, inspection drones and heavy-lift UAV applications.
Tool Replacement Battery
AOVOLT supplies replacement lithium battery packs for cordless power tools, garden tools, vacuum cleaners and handheld professional devices.
Lead-to-Lithium Battery
AOVOLT offers LiFePO4 battery replacement solutions for golf carts, forklifts, AGVs, marine systems, outdoor power and industrial vehicles.
Robot Battery
AOVOLT designs custom battery packs for service robots, AGVs, AMRs, inspection robots, delivery robots, cleaning robots and warehouse automation systems.
Custom Battery Pack
AOVOLT supports project-based LiFePO4, lithium-ion, sodium-ion and LiPo battery pack customization from requirement review to sample testing and mass production.
About Our Factory & Business Background
-
Business Type
- Trading Company
- Address
- No. 201-A181, Building B1, Phase II, Commercial Center, Longfeng Road, Longyuan Community, Longhua Street, Longhua District, Shenzhen City
-
Plant Area
- 255 square meters
-
Registered Capital
- 100,000 RMB
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: one month -
Nearest Port
- Shenzhen Port
-
Minimum Order Quantity
- 50 Pcs
-
Supply Chain Partners
- 5
Our Production Capability & Technical Expertise
-
Main Products
- E-Bike Battery, Drone Battery, Power Tools Battery, Garden Tools Battery, Emotorcycle Battery, Golf Cart Battery, Forklift Battery, Marine Battery, LiFePO4 Battery
-
Customization Options
- Customization from Samples, Customization from Designs, Full Customization, Minor Customization, Flexible customization
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2023-06-12
-
Export Year
- 3 Years
-
Main Markets
- Hongkong
-
Repeat Buyers Choice
- 50%~80%
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- Yes
Our Certifications, Standards & Industry Recognition
-
Cooperated with Fortune 500
- No
FAQ
- Is this an original Apple battery?
- No. It is an ESC compatible diagnostic replacement battery designed for professional iPhone 14 repair and refurbishment. It is not manufactured or endorsed by Apple.
- Does the battery support the 'Genuine' parts status?
- The diagnostic function is designed to support the battery status display after correct installation and the required repair configuration. The final result may depend on the operating-system version and repair procedure.
- Will an unknown-part pop-up appear?
- The battery is designed to avoid battery-related pop-up and error messages when correctly installed and configured by a professional technician.
- Does the flex cable have an additional tag?
- No. This version uses a direct-fit diagnostic flex design without an additional tag attached to the flex cable.
- What is the rated battery capacity?
- The rated capacity is 3279mAh, with a nominal voltage of 3.87V and rated energy of 12.68Wh.
- Which phone model is this battery compatible with?
- This battery is designed for iPhone 14. Please confirm the exact model before ordering because it is not interchangeable with iPhone 14 Plus, 14 Pro or 14 Pro Max batteries.
- What quality tests are performed?
- Each battery is checked for capacity, voltage, internal resistance, appearance and basic charging and discharging performance before shipment.
- What certifications and shipping documents are available?
- The product is marked with CE and PSE. UN38.3 and MSDS documents can be supplied for the corresponding production and shipping batch.
- What is the minimum order quantity?
- The recommended MOQ is 10 pieces. Mixed-model trial orders can be discussed according to the required models and quantities.
- Can I order a sample before placing a bulk order?
- Yes. Samples are available for compatibility and quality evaluation. Sample cost and dangerous-goods shipping charges must be confirmed before payment.
- Do you support OEM or ODM orders?
- Yes. ESC supports customized logos, labels, barcodes, neutral packaging and OEM retail packaging. Custom packaging may require a higher MOQ.
- What is the standard production lead time?
- The standard lead time is approximately 5-7 working days after payment and order details are confirmed. Large and customized orders require additional time.
- How are the batteries shipped?
- The batteries are shipped through approved lithium-battery air, sea, railway or dangerous-goods express channels. The available method depends on the destination and order quantity.
- What warranty do you provide?
- A 12-month quality warranty is available. Confirmed defective batteries can be replaced with the buyer's next order according to the agreed after-sales policy.
- Do defective batteries need to be returned?
- For confirmed quality problems, physical returns are normally not required for small quantities. Photos, videos, batch codes and test information may be requested for verification.
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