iPhone 14 Pro Max Mah Battery

Huizhou Kara Manda Technology Co., Ltd. is one of the leading manufacturers and suppliers of iphone 14 pro max mah battery in China. With abundant experience, we warmly welcome you to wholesale the newest iphone 14 pro max mah battery from our factory. All customized products and OEM products are with high quality and competitive price. If you have any enquiry about quotation, please feel free to email us.

The IQC team carries out hierarchical sampling inspection on all raw materials. For incoming cells, we test capacity, internal resistance, thickness, surface flatness and appearance defects. For protection boards, we verify circuit conductivity and chip operating stability. Adhesive and insulating auxiliary materials are tested for temperature resistance and material stability. Only qualified materials can be warehoused and put into production. We control raw material defects from the source and reduce the repair rate of end products.

1.Material preparation and preprocessing: sorting and dust cleaning of qualified cells, protection boards and auxiliary materials

2.Spot welding and encapsulation of BMS protection board and cell, insulation isolation treatment

3.Cell shaping and dimension calibration to ensure tight installation without bulges and avoid squeezing internal components of the phone

4.Paste and fix battery pull tab and insulating protective stickers

5.Preliminary electrical performance test for semi-finished products

6.Full appearance inspection of finished products to check scratches, bulges, dimension deviation and misplaced auxiliary materials

7.Comprehensive performance test of finished products: verification of capacity, internal resistance and all safety protection functions

8.Vacuum sealing packaging, warehousing registration and batch traceability file creation

Our factory is located in Huizhou with a 3000 ㎡ dust-free workshop. All production operators receive standardized pre-job training and strictly follow standard operating procedures to guarantee consistent quality of bulk orders.

Sampling tests of multiple performance items are conducted for each batch of finished goods, including capacity discharge test, internal resistance test, high & low temperature environment simulation test and safety protection verification. Finished batteries are strictly controlled to avoid bulging, liquid leakage and short-circuit hazards. All test data is archived by batch to support product traceability and stable quality for bulk shipments.

The product has international compliance certificates including CE, FCC, RoHS, UN38.3, satisfying customs clearance requirements for cross-border export. The production management system complies with ISO9001 quality management system standards. Copies of full certificates can be provided for B2B partners, meeting import compliance audits in Europe, America, Southeast Asia, the Middle East and other regions.

OEM & ODM Customization

 

• OEM: Print customer's own brand LOGO, customize outer color boxes and product labels
• ODM: Support packaging design, multi-language manual customization and logo marking adjustment Project timeline: 3-7 working days for sample confirmation; 15-25 working days for mass order delivery. Dedicated sales and technical contacts are assigned to follow up the whole project.

one-stop solution

professional team

high quality

1. Ordinary replacement batteries have short cycle life and rapid capacity decay: High-quality lithium polymer cells are selected, maintaining ≥80% capacity after 800 cycles to extend battery life and usage time of end devices
2. Low-quality protection boards carry severe safety risks: Stable BMS protection system with multi-layer safety protection reduces hazards during charging and daily use
3. Large quality fluctuation in bulk goods: Multi-layer inspection for incoming materials, semi-finished and finished products ensures controllable batch quality
4. Complicated customs clearance for cross-border export: Complete compliance certificates with supporting customs documents
5. Risk of delayed delivery: Self-owned factory in Huizhou with permanent raw material inventory to ensure on-time shipment for bulk orders

1. Demand communication: Confirm compatible model, purchase quantity, customization requirements and packaging specifications
2. Sample delivery: Customers apply for samples to test product compatibility and performance indicators
3. Sample confirmation: After sample test passes, confirm quotation and delivery schedule
4. Production scheduling: Factory arranges production after order placement and updates production progress
5. Finished product quality inspection and packaging
6. Shipment and logistics arrangement, provide customs declaration and certification documents
7. After-sales support and response to product inquiries

This product is a replacement accessory for mobile phones and shall be installed by professional repair technicians. For non-artificial quality defects, the after-sales policy will be implemented in accordance with the signed cooperation agreement. Customers need to complete sampling inspection within 7 working days after receiving goods. If batch quality abnormality occurs, please provide batch number and photos as evidence, and we will respond and handle it quickly.

Disclaimer: Damage caused by improper installation, external extrusion, unauthorized disassembly or water ingress is not covered by the after-sales warranty.

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