ESC
Home/Products/Samsung battery/Samsung Galaxy A51 Battery EB-BA515ABY 4000mAh
default product image
Samsung Galaxy A51 Battery EB-BA515ABY 4000mAh

Factory-direct 4000mAh Galaxy A51 battery from a Samsung battery manufacturer and OEM battery factory, with strict QC, private labels and global shipping.

Samsung Galaxy A51 Battery EB-BA515ABY 4000mAh






Why Choose ESC Samsung Galaxy A51 Battery?

Professional Samsung Battery Manufacturer

ESC is an experienced Samsung battery manufacturer supplying replacement batteries to repair chains, refurbishment facilities, mobile phone parts wholesalers, international distributors and private label battery brands.

An experienced technical team, automated production equipment and standardized inspection procedures support stable specifications, consistent quality and reliable repeat orders.

Factory-Direct Wholesale Supply

Purchasing from a factory direct battery wholesaler gives professional buyers direct access to production, quality inspection, OEM customization, private packaging and after-sales support.

ESC supports sample evaluation, single-model purchasing, mixed-model orders and long-term bulk battery supply programs.

Model-Specific EB-BA515ABY Design

The EB-BA515ABY battery is designed for compatible Samsung Galaxy A51 devices in the SM-A515 series.

Its physical dimensions, flex position, connector orientation and electrical parameters are intended for professional model-specific replacement.

Rated 4000mAh Capacity

The Samsung Galaxy A51 battery has a listed capacity of 4000mAh and a standard voltage of 3.83V.

The original Galaxy A51 device platform also uses a 4000mAh typical battery class. Professional buyers can request samples to verify measured capacity, voltage stability and installation compatibility before bulk approval. ESC

Brand-New Pure Cobalt Cell

The replacement 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.

Strict Quality Control

Quality inspections cover battery appearance, dimensions, voltage, internal resistance, capacity, charging performance, protection functions and self-discharge behavior.

Individual testing and final inspection support a factory defect-rate target below 0.1% and an end-user reported defect rate below 1%.

Integrated PCM Protection

The PCM board provides protection against overcharging, over-discharging and short circuits.

The protection board, flex cable and connector are inspected before shipment to help reduce electrical abnormalities and installation-related failures.

OEM Battery Factory Support

As an OEM battery factory, ESC supports customized battery labels, customer logos, retail boxes, barcode labels, instruction cards, warranty cards and export-carton markings.

Private label battery suppliers can develop customized replacement battery ranges for regional repair and distribution markets.

Flexible Wholesale MOQ

The single-model MOQ is 20 pieces. Mixed-model wholesale orders can start from 100 pieces, subject to the selected products, packaging and customization requirements.

Samples can be evaluated before a larger purchasing program is confirmed.

Stable Production Lead Time

Standard products can normally be prepared within approximately seven days when materials and inventory are available.

Customized labels, private packaging and larger production quantities may require additional production time.

Global Battery Shipping

Available shipping methods include DHL, UPS, air freight, sea freight, railway freight and road transportation.

The logistics route can be selected according to the destination, order quantity, customs requirements, delivery schedule and transportation budget. ESC

Quick Specifications

Specification Details
Product Name Samsung Galaxy A51 Replacement Battery
Battery Reference EB-BA515ABY
Compatible Device Samsung Galaxy A51
Compatible Series SM-A515 Series
Battery Type Rechargeable Lithium-Ion Battery
Cell Material Brand-New Pure Cobalt Cell
Rated Capacity 4000mAh
Standard Voltage 3.83V
Product Configuration Replacement Battery With Flex Connector and PCM
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%
Standard Lead Time Approximately 7 Days
Warranty 12 Months
Single-Model MOQ 20 Pieces
Mixed-Model MOQ 100 Pieces
OEM Service Custom Logo, Battery Label, Barcode and Private Packaging
Available Certifications ISO 9001, CE, FCC, RoHS, IEC 62133, PSE, REACH, UL 2054, MSDS, UN38.3, KC and TISI
Express Shipping DHL or UPS, Approximately 3–6 Days
Air Freight Available According to Destination and Order Quantity
Sea Freight Approximately 20–40 Days
Railway Freight Approximately 30–35 Days
Road Transportation Approximately 20–25 Days
Shipping Port Shenzhen

Final certification availability, production time, MOQ and transportation schedule should be confirmed according to the production batch, destination, order quantity and packaging requirements. ESC

Samsung Galaxy A51 battery

What Is a Samsung Galaxy A51 Battery?

Product Definition

A Samsung Galaxy A51 battery is a 4000mAh, 3.83V lithium-ion replacement battery using the EB-BA515ABY reference. ESC is a Samsung 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 battery intended for professional repair, refurbishment and wholesale supply. It is not an original Samsung service battery.

Key Features

1. Model-Specific EB-BA515ABY Configuration

The EB-BA515ABY battery is developed for the battery compartment, flex position and electrical requirements of compatible Samsung Galaxy A51 devices.

2. Rated 4000mAh Capacity

The battery provides a listed capacity of 4000mAh and a standard voltage of 3.83V for professional Galaxy A51 battery replacement.

Actual runtime depends on measured capacity, phone condition, display brightness, network activity, installed applications, charging habits and operating temperature.

3. Complete Replacement Configuration

The product includes a model-matched flex connector and PCM protection board rather than being supplied as a bare lithium-ion cell.

Professional technicians should verify the original battery code, connector orientation and device model before installation.

4. More Than 800 Charging Cycles

The brand-new pure cobalt cell has a listed cycle-life target of more than 800 charging cycles under suitable charging, storage and operating conditions.

Actual cycle life depends on discharge depth, charging voltage, device temperature, charger quality and daily usage.

5. OEM and Private Label Support

Custom logos, battery labels, retail boxes, barcode labels, instruction cards, warranty cards and export cartons are available for wholesale and private label orders.

Compatible Samsung Galaxy Models

Compatible Device Model Number Primary Market or Version
Samsung Galaxy A51 SM-A515F/DS International Dual-SIM Version
Samsung Galaxy A51 SM-A515F/DSN International Dual-SIM and NFC Version
Samsung Galaxy A51 SM-A515U United States Carrier Version
Samsung Galaxy A51 SM-A515U1 United States Unlocked Version
Samsung Galaxy A51 SM-A515W Canada Version
Samsung Galaxy A51 Other SM-A515 Variants Compatibility Subject to Battery-Code Verification

The EB-BA515ABY battery is intended for the standard 4G Samsung Galaxy A51 platform. It should not be confused with the Galaxy A51 5G, which uses the EB-BA516ABY battery reference and a different battery configuration.

Buyers should confirm the phone model number, original battery reference, dimensions, flex orientation and connector position before ordering. Samsung be

Applications

Application Description
Mobile Phone Repair Shops Suitable for professional technicians replacing aged, damaged, swollen, fast-draining or low-capacity Galaxy A51 batteries.
Refurbishment Facilities Supports batch refurbishment programs requiring model-specific batteries, consistent specifications and stable repeat supply.
Samsung Parts Wholesalers Suitable for wholesalers supplying replacement batteries to repair shops, technicians and regional service centers.
Repair Chain Stores Centralized purchasing helps repair chains maintain standardized battery references, predictable inventory and consistent quality.
Private Label Battery Brands OEM customization supports customer logos, branded labels, retail packaging, barcodes and warranty materials.
E-Commerce Battery Sellers Suitable for online sellers requiring accurate compatibility information, retail-ready packaging and stable stock.
International Distributors Mixed-model purchasing, export documentation and multiple shipping methods support regional distribution programs.

ESC Replacement Battery vs Original Factory Battery

Comparison Item ESC Replacement Battery Original Factory Battery
Product Type Compatible aftermarket replacement battery Factory-installed battery assembly
Compatible Device Samsung Galaxy A51 Samsung Galaxy A51
Battery Reference EB-BA515ABY Original model-specific battery platform
Capacity Listed 4000mAh 4000mAh typical battery class
Standard Voltage 3.83V Original model-specific electrical specification
Battery Chemistry Pure Cobalt Lithium-Ion Cell Lithium-Ion Battery
Product Condition Brand-New Replacement Battery Brand-New When Originally Installed
Flex Connector Model-Matched Replacement Flex Original Factory Flex
Protection Board PCM With Electrical Protection Original Factory Protection System
Protection Functions Overcharge, Over-Discharge and Short-Circuit Protection Integrated Original Protection Functions
Installation Method Professional Repair Installation Required Installed During Manufacturing or Authorized Service
Compatibility Verification Confirmed by Device Model, Battery Code and Connector Integrated With the Original Device
Branding ESC, Neutral Label or Customized Private Label Original Manufacturer Identification
Packaging Standard Wholesale or Customized OEM Packaging Original Service-Channel Packaging
Wholesale Availability Available for Professional B2B Purchasing Subject to Original Service-Channel Availability
OEM Labeling Supported Not Available for Third-Party Branding
Private Packaging Supported Not Available
Order Flexibility Supports Single-Model, Mixed-Model and Customized Orders Limited by Official Service-Channel Policies
Single-Model MOQ 20 Pieces Generally Unavailable Through Flexible Wholesale
Warranty 12-Month Supplier Warranty Subject to Original Manufacturer Service Terms
Target Customers Repair Shops, Refurbishers, Wholesalers and Distributors Original Manufacturing and Authorized Service Networks
Cost Positioning Competitive Professional Replacement Solution Generally Positioned Within the Official Service Ecosystem

Replacement-battery capacity, connector compatibility, charging performance and runtime should be verified through sample testing before bulk approval. The Galaxy A51 device platform is published with a 4000mAh typical battery capacity. ESC

Quality Control Process

Incoming Cell Inspection

Incoming battery 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 improve batch consistency.

Capacity Verification

Professional battery analyzers are used to confirm whether measured capacity meets the approved 4000mAh product specification.

PCM Protection Testing

The PCM board is tested for overcharge, over-discharge and short-circuit protection according to the approved production procedure.

Flex and Connector Inspection

The flex cable, contact points and connector position are checked for alignment, appearance and electrical connection integrity.

Charging and Discharging Test

Charging and discharging performance is checked to identify abnormal current, unstable voltage, excessive temperature or early capacity loss.

Aging Inspection

Aging tests help identify abnormal self-discharge and unstable electrical performance before shipment.

Final Inspection

Battery appearance, dimensions, printed information, flex position, labels, quantities and packaging are checked before order release.

OEM and Private Label Service

Custom Battery Labels

Customer logos, battery references, capacities, voltages, warning information, production batches and traceability codes can be printed on the label.

Private Label Packaging

Available options include individual retail boxes, protective trays, barcode labels, instruction cards and warranty cards.

Barcode and SKU Management

Customized model codes, SKU labels and barcodes help wholesalers manage multiple Samsung replacement battery products.

Mixed-Model Purchasing

Different Samsung, iPhone, Huawei, Xiaomi, OPPO, Vivo, tablet and laptop battery models can be combined according to confirmed quantities.

Export Carton Customization

Outer-carton labels, shipping marks, quantities, product references and customer branding can be customized for international shipments.

Ordering Information

Quotation Requirements

Provide the required battery model, order quantity, destination country, packaging requirements, logo files, certification requirements and preferred shipping method.

Sample Evaluation

Professional buyers can request samples to evaluate battery dimensions, flex position, connector orientation, measured capacity, voltage stability and charging performance.

Compatibility Confirmation

Confirm the phone model number, original battery reference EB-BA515ABY, battery dimensions and connector position before placing an order.

Bulk Production

Bulk production begins after the product model, quantity, label artwork, packaging, payment terms and delivery requirements are confirmed.

Shipping Arrangement

The recommended logistics route is selected according to battery quantity, destination, customs requirements, delivery schedule and transportation budget.

FAQ

1. What is the capacity of the Samsung Galaxy A51 battery?

The replacement battery has a listed capacity of 4000mAh and a standard voltage of 3.83V.

Professional buyers can request samples to verify measured capacity, voltage stability and runtime before approving a bulk order.

2. What battery model is used for the Samsung Galaxy A51?

The applicable replacement battery reference is EB-BA515ABY.

Buyers should compare the original battery code, battery dimensions, flex orientation and connector position before ordering.

3. Which phones are compatible with the EB-BA515ABY battery?

The battery is designed for compatible Samsung Galaxy A51 devices in the SM-A515 series.

Common versions include SM-A515F/DS, SM-A515F/DSN, SM-A515U, SM-A515U1 and SM-A515W.

4. Is this battery compatible with the Galaxy A51 5G?

No compatibility should be assumed. The Galaxy A51 5G uses the EB-BA516ABY battery platform with a different capacity and physical configuration.

The original battery reference should always be checked before installation.

5. Does the battery include a flex connector and protection board?

Yes. The replacement configuration includes a model-matched flex connector and PCM protection board.

The PCM provides protection against overcharging, over-discharging and short circuits.

6. Is this an original Samsung battery?

No. It is a compatible aftermarket replacement battery manufactured for professional repair, refurbishment and wholesale markets.

It should not be described as an original Samsung service battery.

7. What is the minimum order quantity?

The single-model MOQ is 20 pieces. Mixed-model wholesale orders can start from 100 pieces.

Final quantities depend on the selected products, packaging and customization requirements.

8. Can ESC customize the battery label and packaging?

Yes. ESC supports custom logos, battery labels, retail boxes, barcode labels, instruction cards, warranty cards and export-carton markings.

9. How is the battery quality checked before shipment?

Typical inspections include appearance checking, voltage testing, internal-resistance measurement, capacity verification, PCM testing, flex inspection, charging and discharging tests, aging inspection and final packaging checks.

10. What warranty and shipping methods are available?

A 12-month supplier warranty is available for qualified product-quality issues.

Shipping options include DHL, UPS, air freight, sea freight, railway freight and road transportation. Delivery time depends on the destination, customs clearance and selected logistics route.

Our Factory

Since 2016, ESC has served B2B buyers with replacement batteries and charging products. We offer 3,000+ models for iPhone, Android phones, tablets and laptops, with flexible MOQs, lead times within seven days and a customer-reported defect rate below 1%. Since 2022, we have developed private-mold fast-charging power banks with broad protocol compatibility and thermal control. ESC supports brands, wholesalers, refurbishers and repair chains with OEM/ODM, certification and production services.

ESC production process 1
ESC production process 2
ESC production process 3
ESC production process 4
ESC production process 5
ESC production process 6

Our Certificates

ESC certificate 1
ESC certificate 2
ESC certificate 3
ESC certificate 4

OEM & ODM Battery Order Process

  1. 01

    Customer Inquiry & Requirement Confirmation

    Confirm battery models, capacity, quantity, target market, certification and customization requirements.

  2. 02

    Quotation

    Provide a detailed quotation based on product specifications, order quantity, packaging and delivery requirements.

  3. 03

    Customization Details Confirmation

    Confirm customized labels, barcodes, silk-screen artwork, logo printing, packaging and other branding details.

  4. 04

    Order Confirmation

    Finalize product specifications, quantities, unit prices, payment terms, delivery schedule and shipping method.

  5. 05

    Deposit Payment

    The customer pays the agreed deposit so that materials and production can be arranged.

  6. 06

    Production Arrangement

    Arrange material preparation, battery assembly, quality inspection, aging tests, packaging and order completion.

  7. 07

    Balance Payment

    The customer pays the remaining balance after production is completed and the order details are confirmed.

  8. 08

    Shipment

    Arrange shipment by an approved air, sea, railway or express channel according to the destination and order requirements.

  9. 09

    Delivery & Receipt Follow-Up

    Provide shipping documents and tracking information, and follow up until the customer receives the goods.

  10. 10

    24/7 After-Sales Support

    Provide responsive technical assistance, quality-issue analysis and after-sales solutions after delivery.

How to Choose a Reliable Replacement Battery Supplier

Evaluate cell quality, testing capability, assembly details, production consistency and installation support before purchasing smartphone, tablet or laptop replacement batteries.

Verify Battery Model Coverage and Compatibility

Choose a supplier with broad coverage for smartphone, tablet and laptop batteries. Confirm the original battery code, device model, connector position, dimensions, rated voltage and system compatibility before ordering.

A supplier with an established model database can reduce incorrect shipments, installation problems and compatibility-related returns.

1

Check the Quality of Cells and Electronic Components

Battery quality starts with the raw materials. Ask the supplier about:

  • Battery-cell manufacturer and grade
  • Actual cell capacity
  • Cell cycle life
  • PCB and protection-chip solution
  • Connector and flex-cable quality
  • Traceability of key components

Reliable suppliers should use graded cells rather than selecting components only by the lowest price.

2

Review Incoming Material Inspection and Cell Grading

Cells should be tested and grouped according to:

  • Capacity
  • Voltage
  • Internal resistance
  • Self-discharge
  • Thickness and dimensions
  • Appearance

Proper cell grading improves consistency between batteries from the same production batch and reduces abnormal runtime, swelling and early failure.

3

Require Complete Electrical and Compatibility Testing

A professional supplier should test more than the open-circuit voltage. Quality verification should include:

  • Charging and discharging performance
  • Actual capacity
  • Battery current
  • Protection functions
  • Cycle count and battery data
  • Fuel-gauge parameters
  • Device compatibility
  • Temperature performance

Professional battery testers can perform charging, discharging, current calibration and precise parameter comparison, helping identify batteries whose measured data does not match the approved specification.

4

Evaluate Automation and Production Consistency

Automated production processes normally provide better consistency and higher capacity than heavily manual assembly.

Important processes may include:

  • Automatic cell sorting
  • Automatic welding
  • Automatic PCB testing
  • Automatic adhesive application
  • Barcode traceability
  • In-line functional inspection

Automation does not replace quality control, but it helps reduce variation caused by manual positioning, welding and assembly.

5

Inspect Assembly Details

Small assembly details have a major effect on installation efficiency and product reliability.

A well-finished battery should include:

  • Pre-applied battery adhesive
  • Dust-proof protective film
  • Protective sleeve around the flex cable
  • Fixed flex-cable position
  • Stable connector orientation
  • No loose or moving battery cable
  • Clean edges and accurate dimensions

These details reduce flex-cable damage, dust contamination, installation movement and incorrect connector alignment.

6

Confirm In-Process and Final Quality Inspection

The supplier should conduct inspection throughout production rather than checking only finished goods.

Recommended checkpoints include:

  • Incoming material inspection
  • Cell grading
  • PCB and BMS testing
  • Welding inspection
  • Assembly inspection
  • Capacity testing
  • Aging testing
  • Appearance inspection
  • Packaging inspection
  • Final random inspection

Ask whether inspection data can be traced back to the production batch.

7

Compare Capacity Claims, Defect Rate and Certification

Do not select batteries based only on the highest printed capacity.

A credible supplier should provide:

  • Tested capacity data
  • Clear rated voltage and energy
  • Customer-reported defect rate
  • Warranty policy
  • CE, RoHS, FCC, MSDS and UN38.3 documentation where applicable
  • Model-specific certification support

Exaggerated capacity labels without matching cell space, weight and test data are a significant purchasing risk.

8

Follow Correct Battery Installation Procedures

Even a qualified battery can fail if it is installed incorrectly.

Before installation:

  • Discharge the original battery below 25%
  • Power off the device
  • Use non-metallic opening tools
  • Disconnect the battery before handling other internal components
  • Avoid puncturing, bending or crushing the cell
  • Remove the protective film from the adhesive correctly
  • Align the battery and connector before pressing it into place
  • Confirm that the flex cable is not folded, stretched or trapped
  • Reinstall screws and brackets in their original positions
  • Test charging, battery recognition and device functions before final sealing

The installation guide specifically warns that a charged lithium-ion battery may catch fire or explode if punctured, and instructs technicians to power off the phone before disassembly.

9

Contact Us

Phone

For free sample,please click here.

For instant communication,please click here.

For our home page, please click here.

Minimum Order: 10 Units
WeChat QR Code