Why Choose ESC iPhone XS Max Higher Capacity Battery?
Professional iPhone Battery Manufacturer
ESC is an experienced iPhone battery manufacturer supplying replacement batteries to repair chains, refurbishment facilities, phone-parts wholesalers, international distributors and private label battery suppliers.
Automated production equipment, an experienced research and development team and standardized inspection procedures support stable specifications and consistent repeat-order quality.
Higher 3700mAh Capacity
The ESC iPhone XS Max higher capacity battery has a rated capacity of 3700mAh, compared with the commonly documented 3174mAh capacity of the original iPhone XS Max battery.
The printed capacity is approximately 16.6% higher. Actual runtime improvement depends on measured capacity, device condition, display use, network activity, installed applications, operating temperature and charging habits. Shenzhen MF Technology Co.,Ltd
Brand-New Pure-Cobalt Cell
The battery uses a brand-new pure-cobalt lithium-ion cell designed to provide stable voltage output, controlled internal resistance and consistent charging and discharging performance.
Its listed cycle-life target is more than 800 charging cycles under suitable charging, storage and operating conditions. Shenzhen MF Technology Co.,Ltd
Model-Specific iPhone XS Max Design
The battery is designed around the internal dimensions, connector location and electrical requirements of the iPhone XS Max.
It supports iPhone XS Max model numbers A1921, A2101, A2102, A2103 and A2104, subject to verification of the original battery shape, flex configuration and regional device version. 苹果支持
Chip and Flex Options
ESC offers TI, ZY and 1:1 chip solutions with a model-matched flex configuration.
Battery-health information, system messages, battery data and cycle information can depend on the selected chip, flex configuration, iOS version and installation process. Buyers should approve the required functions through sample testing before bulk production. Shenzhen MF Technology Co.,Ltd
Strict Quality Control
Quality inspections cover battery appearance, dimensions, voltage, internal resistance, capacity, charging and discharging performance, PCM protection, chip configuration, flex connection and aging performance.
ESC lists a factory defect-rate target below 0.1% and an end-user reported defect rate below 1%, with individual multi-step testing before shipment. Shenzhen MF Technology Co.,Ltd
Integrated PCM Protection
The PCM board provides protection against overcharging, over-discharging and short circuits.
The protection board, chip, flex cable, connector and contact points are inspected before shipment to help reduce electrical abnormalities and installation-related failures. Shenzhen MF Technology Co.,Ltd
Factory-Direct Wholesale Supply
Purchasing from a factory direct battery wholesaler provides professional buyers with direct access to manufacturing, quality inspection, technical support, OEM customization, private packaging and after-sales service.
ESC supports sample evaluation, single-model purchasing, mixed-model orders and long-term bulk battery supply programs.
OEM and Private Label Service
As an OEM battery factory, ESC supports customized battery labels, customer logos, barcode labels, retail boxes, installation instructions, warranty cards and export-carton markings.
Buyers can select ESC branding, neutral packaging or customized private label solutions according to their sales channel.
Flexible Wholesale MOQ
The single-model MOQ is 20 pieces. Mixed-model orders can start from 100 pieces, depending on the selected batteries, chip options, labels and packaging requirements.
Professional buyers can request samples before approving larger wholesale orders. Shenzhen MF Technology Co.,Ltd
Warranty and Global Shipping
A 12-month supplier warranty is available for qualified product-quality issues.
Available shipping methods include DHL, UPS, air freight, sea freight, railway freight and road transportation. Express delivery is listed at approximately 3–6 days, while estimated transit times are 20–40 days by sea, 30–35 days by railway and 20–25 days by road. Shenzhen MF Technology Co.,Ltd
Quick Specifications
| Specification | Details |
|---|---|
| Product Name | iPhone XS Max Higher Capacity Replacement Battery |
| Compatible Device | Apple iPhone XS Max |
| Compatible Model Numbers | A1921, A2101, A2102, A2103 and A2104 |
| Battery Type | Rechargeable Lithium-Ion Battery |
| Cell Material | Brand-New Pure-Cobalt Cell |
| Rated Capacity | 3700mAh |
| Standard Voltage | 3.83V |
| Original Capacity for Comparison | Approximately 3174mAh |
| Printed Capacity Increase | Approximately 16.6% |
| Product Configuration | Battery With Flex, Chip and PCM |
| Available Chip Options | TI, ZY and 1:1 Solutions |
| Protection Functions | Overcharge, Over-Discharge and Short-Circuit Protection |
| Cycle-Life Target | More Than 800 Charging Cycles |
| Charging Time | Approximately 1–3 Hours |
| Standby Time | Approximately 3–7 Days, Depending on Device Use |
| Working Temperature | -10°C to 50°C |
| Factory Defect-Rate Target | Below 0.1% |
| End-User Reported Defect Rate | Below 1% |
| Warranty | 12 Months |
| Single-Model MOQ | 20 Pieces |
| Mixed-Model MOQ | 100 Pieces |
| OEM Service | Custom Logo, Battery Label, Barcode and Private Packaging |
| Certifications and Documents | ISO 9001, CE, RoHS, FCC, IEC 62133, PSE, REACH, UL 2054, MSDS and UN38.3 |
| Additional Market Documents | KC and TISI, Subject to Batch Availability |
| Express Shipping | DHL or UPS, Approximately 3–6 Days |
| Air Freight | Available According to Destination and Quantity |
| Sea Freight | Approximately 20–40 Days |
| Railway Freight | Approximately 30–35 Days |
| Road Transportation | Approximately 20–25 Days |
| Shipping Port | Shenzhen |
The 3700mAh capacity, 3.83V voltage, protection functions, cycle-life target, warranty, MOQ and shipping information are listed for the ESC higher-capacity battery platform. Final certificate availability and product configuration should be confirmed for the approved production batch. Shenzhen MF Technology Co.,Ltd
What Is an iPhone XS Max Higher Capacity Battery?
Product Definition
An iPhone XS Max higher capacity battery is a 3700mAh, 3.83V Li-ion replacement battery for professional repair. ESC is an iPhone battery manufacturer, phone battery supplier and OEM battery factory offering strict QC, private label service, bulk supply and global shipping.
This product is a compatible aftermarket replacement component. It is not an original Apple service battery.
Key Features
1. Higher 3700mAh Rated Capacity
The 3700mAh printed capacity is approximately 16.6% higher than the commonly documented 3174mAh original iPhone XS Max battery capacity.
Measured capacity, energy density and runtime should be verified through controlled sample testing before bulk purchasing.
2. Brand-New Pure-Cobalt Cell
The pure-cobalt lithium-ion cell is designed to provide stable voltage, controlled internal resistance and consistent charging and discharging performance.
3. Complete Replacement Configuration
The battery includes a model-matched flex, selected chip solution and PCM protection board rather than being supplied as an unprotected bare cell.
4. More Than 800 Charging Cycles
The listed cycle-life target is more than 800 charging cycles under suitable charging, operating and storage conditions.
Actual cycle life depends on charging voltage, depth of discharge, device temperature, charger quality and usage habits.
5. OEM and Private Label Support
Custom logos, battery labels, barcode labels, retail boxes, installation instructions, warranty cards and export cartons are available for wholesale orders.
Compatible iPhone Models
| Compatible Device | Model Number | Primary Market or Version | Compatibility Notes |
|---|---|---|---|
| Apple iPhone XS Max | A1921 | United States, Canada and Selected Markets | Confirm Original Battery and Connector |
| Apple iPhone XS Max | A2101 | International Markets | Verify Flex and Chip Configuration |
| Apple iPhone XS Max | A2102 | Japan | Confirm Regional Device Version |
| Apple iPhone XS Max | A2103 | Selected Regional Markets | Original Battery Verification Recommended |
| Apple iPhone XS Max | A2104 | China Mainland | Confirm SIM Version and Internal Configuration |
Apple identifies the iPhone XS Max with model numbers A1921, A2101, A2102, A2103 and A2104. 苹果支持
This battery should not be confused with batteries for the iPhone X, iPhone XR, iPhone XS, iPhone 11 Pro Max or other models with different battery dimensions and flex configurations.
Applications
Mobile Phone Repair Shops
Suitable for professional technicians replacing aged, damaged, swollen, fast-draining or low-capacity iPhone XS Max batteries.
Smartphone Refurbishment Facilities
Supports batch refurbishment programs requiring higher-capacity replacement batteries, consistent specifications and stable repeat supply.
Mobile Phone Parts Wholesalers
The battery can be included in a wholesale iPhone battery range for repair shops, technicians, service centers and regional resellers.
Repair Chain Stores
Centralized purchasing helps repair chains maintain standardized battery specifications, predictable inventory and consistent installation procedures.
Private Label Battery Brands
OEM customization supports customer logos, branded labels, retail packaging, barcode systems, instructions and warranty materials.
E-Commerce Battery Sellers
Suitable for online sellers requiring accurate compatibility information, retail-ready packaging, SKU management and stable replacement battery inventory.
International Distributors
Mixed-model purchasing, export documentation and multiple transportation methods support regional distribution and international wholesale programs.
ESC Higher Capacity Battery vs Original iPhone XS Max Battery
| Comparison Item | ESC Higher Capacity Battery | Original iPhone XS Max Battery |
|---|---|---|
| Product Type | Compatible Aftermarket Replacement Battery | Factory-Installed or Official Service Battery |
| Compatible Device | Apple iPhone XS Max | Apple iPhone XS Max |
| Compatible Models | A1921, A2101, A2102, A2103 and A2104 | Model-Specific Original Installation |
| Rated Capacity | 3700mAh | Approximately 3174mAh |
| Capacity Positioning | Approximately 16.6% Higher Printed Capacity | Original Design Capacity |
| Standard Voltage | 3.83V | Approximately 3.80V |
| Energy Reference | Confirm From Approved Production Label | Approximately 12.08Wh |
| Battery Chemistry | Pure-Cobalt Lithium-Ion Cell | Original Lithium-Ion Battery |
| Battery Structure | Model-Matched L-Shaped Assembly | Original L-Shaped Assembly |
| Product Condition | Brand-New Replacement Battery | Brand-New When Originally Installed |
| Flex Connection | Model-Matched Replacement Flex | Original Factory Flex |
| Chip Options | TI, ZY and 1:1 Solutions | Original Factory Battery Electronics |
| Protection System | PCM Protection Board | Original Factory Protection System |
| Protection Functions | Overcharge, Over-Discharge and Short-Circuit Protection | Integrated Original Protection Functions |
| Cycle-Life Positioning | Listed Target Above 800 Cycles | Depends on Battery Age and Usage |
| Battery-Health Display | Depends on Chip, Flex, iOS and Installation | Integrated With Original Device Electronics |
| System Messages | Depend on Selected Solution and Repair Process | Original Factory Integration |
| Installation | Professional Installation Required | Factory or Authorized-Service Installation |
| Branding | ESC, Neutral Label or Customized Private Label | Original Apple Identification |
| Packaging | Standard Wholesale or Customized OEM Packaging | Original Service-Channel Packaging |
| Wholesale Availability | Available for Professional B2B Purchasing | Subject to Official Service-Channel Availability |
| OEM Labeling | Supported | Not Available for Third-Party Branding |
| Private Packaging | Supported | Not Available |
| Single-Model MOQ | 20 Pieces | Generally Unavailable Through Flexible Wholesale |
| Warranty | 12-Month Supplier Warranty | Subject to Original Manufacturer Service Terms |
| Target Buyers | Repair Shops, Refurbishers, Wholesalers and Distributors | Consumers and Authorized Service Networks |
The original iPhone XS Max battery is commonly documented at approximately 3174mAh and 12.08Wh. The ESC replacement is listed at 3700mAh and 3.83V. Printed capacity alone does not guarantee longer runtime, so measured capacity, battery thickness, temperature behavior and device compatibility should be evaluated during sample approval. Macworld
Quality Control Process
Incoming Cell Inspection
Incoming cells are checked for appearance, dimensions, voltage, internal resistance and material consistency before production.
Cell Grading
Cells are grouped according to measured capacity, voltage, internal resistance, thickness and self-discharge performance to reduce differences within the same production batch.
Capacity Verification
Professional battery analyzers are used to verify measured discharge capacity against the approved 3700mAh specification.
Capacity reports should be reviewed during sample approval because this product is marketed as a higher-capacity replacement battery.
PCM and Chip Testing
The PCM board and selected chip solution are checked for electrical performance, battery communication and protection functions.
Testing requirements should be confirmed according to the selected TI, ZY or 1:1 configuration.
Flex and Connector Inspection
The flex cable, welding points, connector orientation and contact surfaces are inspected for alignment, appearance and electrical continuity.
Charging and Discharging Test
Charging and discharging tests help identify abnormal current, unstable voltage, excessive temperature, premature cutoff and early capacity loss.
Aging Inspection
Aging testing helps identify abnormal self-discharge and unstable electrical performance before shipment.
Final Inspection
Battery appearance, dimensions, capacity label, flex position, chip configuration, quantity and packaging are checked before order release.
ESC describes a 24-step individual testing process for its higher-capacity battery products. Shenzhen MF Technology Co.,Ltd
OEM and Private Label Service
Custom Battery Labels
Customer logos, capacity information, voltage, safety warnings, batch numbers, production dates and traceability codes can be printed on the battery label.
Private Label Packaging
Available options include retail boxes, protective trays, barcode labels, instruction cards, installation notes and warranty cards.
Chip and Flex Configuration
Buyers can confirm TI, ZY or 1:1 chip options and the required flex solution according to their repair procedure and target market.
Barcode and SKU Management
Customized product codes, barcodes and SKU labels help wholesalers manage different iPhone models, chip solutions and capacity levels.
Mixed-Model Purchasing
Different iPhone, Samsung, Xiaomi, Huawei, OPPO, Vivo, tablet and laptop battery models can be combined according to confirmed quantities.
Export Carton Customization
Outer-carton labels, shipping marks, product references, quantities and customer branding can be customized for international orders.
FAQ
1. What is the capacity of the iPhone XS Max higher capacity battery?
The ESC replacement battery has a rated capacity of 3700mAh and a standard voltage of 3.83V.
This is approximately 16.6% higher than the commonly documented 3174mAh original iPhone XS Max battery capacity.
2. Which iPhone models are compatible with this battery?
The battery is designed for the Apple iPhone XS Max.
Compatible model numbers include A1921, A2101, A2102, A2103 and A2104. The exact device model and original battery configuration should be checked before installation.
3. Is this battery compatible with the iPhone XS or iPhone XR?
No. The iPhone XS Max, iPhone XS and iPhone XR use different battery shapes, capacities, flex cables and internal configurations.
The device model should always be verified before ordering.
4. Is this an original Apple battery?
No. It is a compatible aftermarket replacement battery manufactured for professional repair, refurbishment and wholesale markets.
It should not be described or marketed as an original Apple service battery.
5. Does the battery include a flex cable, chip and protection board?
Yes. The product includes a model-matched flex connection, selected chip solution and PCM protection board.
The PCM provides protection against overcharging, over-discharging and short circuits.
6. Will the battery display battery health without a warning message?
Battery-health display and system messages depend on the selected chip, flex configuration, iOS version, device condition and installation method.
Buyers should confirm the required functions and test a sample before placing a bulk order.
7. Will the 3700mAh battery provide longer runtime?
The printed capacity is approximately 16.6% higher than the commonly documented original capacity, so it may provide additional runtime when the measured capacity meets the specification.
Actual runtime depends on battery quality, phone condition, screen use, network signal, installed applications, temperature and charging habits.
8. What is the minimum order quantity?
The single-model MOQ is 20 pieces. Mixed-model wholesale orders can start from 100 pieces.
Final MOQ depends on the selected chip, battery label, packaging and customization requirements.
9. Can ESC customize the battery label and packaging?
Yes. ESC supports customer logos, private battery labels, barcode labels, retail boxes, instruction cards, warranty cards and export-carton markings.
Customized artwork and packaging details can be approved before bulk production.
10. What warranty and shipping methods are available?
A 12-month supplier warranty is available for qualified product-quality issues.
Shipping methods include DHL, UPS, air freight, sea freight, railway freight and road transportation. Delivery time depends on the destination, customs clearance, order quantity and selected shipping route.
