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Samsung Galaxy S20 Ultra 5G Battery EB-BG988ABY 5000mAh

Factory-direct 5000mAh Galaxy S20 Ultra battery from a Samsung battery manufacturer and OEM battery factory, with strict QC, private labels and global shipping.

Samsung Galaxy S20 Ultra 5G Battery EB-BG988ABY 5000mAh






Why Choose ESC Galaxy S20 Ultra Battery?

Professional Samsung Battery Manufacturer

ESC is a Samsung battery manufacturer serving mobile phone repair chains, refurbishment facilities, parts wholesalers, international distributors and private label battery brands.

Professional research and development, automated production equipment and standardized quality-control procedures help maintain consistent product specifications and repeat-order quality.

Factory-Direct Wholesale Supply

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

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

Model-Specific EB-BG988ABY Battery

The Galaxy S20 Ultra battery uses the EB-BG988ABY battery reference and is designed for the Samsung Galaxy S20 Ultra and compatible S20 Ultra 5G variants.

The model-specific battery structure, connector position and electrical parameters help professional technicians reduce compatibility and installation problems.

5000mAh Capacity

The battery has a listed capacity of 5000mAh and a standard voltage of 3.83V.

Samsung also identifies the Galaxy S20 Ultra battery platform as 5000mAh typical, with a rated minimum capacity of 4855mAh. 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 reliable charging and discharging performance.

The listed cycle-life target is more than 800 charging cycles under suitable charging, storage and operating conditions. ESC

Strict Quality Control

Battery inspections include appearance checking, voltage measurement, internal-resistance testing, capacity verification, charging and discharging tests, protection testing and aging inspection.

Individual testing and final quality checks help maintain a factory defect-rate target below 0.1% and a customer-reported defect rate below 1%. ESC

PCM Protection

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

Professional installation and correct connector alignment are still required to ensure safe and stable operation.

OEM Battery Factory Support

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

These services help wholesalers and private label suppliers build differentiated replacement battery product lines.

Flexible Wholesale MOQ

The single-model MOQ is 20 pieces. Mixed-model wholesale orders can start from 100 pieces, depending on the selected models, packaging and customization requirements. ESC

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. ESC

Global Battery Shipping

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

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

Quick Specifications

Specification Details
Product Name Samsung Galaxy S20 Ultra Battery
Battery Model EB-BG988ABY
Compatible Devices Samsung Galaxy S20 Ultra and S20 Ultra 5G
Battery Type Rechargeable Lithium-Ion Battery
Cell Material Brand-New Pure Cobalt Cell
Listed Capacity 5000mAh
Standard Voltage 3.83V
Product Configuration Complete Replacement Battery With Flex 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%
Customer-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
Certifications ISO 9001, CE, RoHS, FCC, 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

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

Galaxy S20 Ultra battery

What Is a Galaxy S20 Ultra Battery?

Product Definition

A Galaxy S20 Ultra battery is a 5000mAh, 3.83V lithium-ion replacement battery for professional repair and refurbishment. ESC is a Samsung battery manufacturer, phone battery supplier and OEM battery factory offering strict QC, private labels, bulk supply and global shipping.

This product is a compatible aftermarket replacement battery intended for professional B2B supply. It is not an original Samsung service part.

Key Features

1. Model-Specific EB-BG988ABY Design

The EB-BG988ABY battery model is designed for the internal battery space, connector position and electrical requirements of the Samsung Galaxy S20 Ultra platform.

2. Listed 5000mAh Capacity

The battery provides a listed 5000mAh capacity and 3.83V standard voltage for professional Galaxy S20 Ultra battery replacement.

Actual runtime depends on measured capacity, device condition, screen brightness, network activity, applications, charging habits and operating temperature.

3. Complete Battery Configuration

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

Professional technicians should confirm the connector position, battery dimensions 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 appropriate charging, storage and operating conditions.

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. ESC

Compatible Samsung Galaxy Models

Device Model Number Primary Market or Version
Samsung Galaxy S20 Ultra 5G SM-G988B/DS International Dual-SIM Version
Samsung Galaxy S20 Ultra 5G SM-G988U1 United States Unlocked Version
Samsung Galaxy S20 Ultra 5G SM-G988W Canada Version
Samsung Galaxy S20 Ultra SM-G988 Series Other Compatible Regional Variants Subject to Verification

Samsung identifies SM-G988B/DS, SM-G988U1 and SM-G988W as Galaxy S20 Ultra 5G variants. Buyers should confirm the exact phone model, original battery code and connector position before ordering. Samsung be

Applications

Mobile Phone Repair Shops

The Galaxy S20 Ultra battery is suitable for professional technicians replacing aged, damaged, swollen, fast-draining or low-capacity batteries.

Refurbishment Facilities

It supports batch refurbishment programs requiring model-specific batteries, consistent electrical specifications and stable repeat supply.

Samsung Parts Wholesalers

The product can be included in a wholesale replacement battery range for repair shops, service centers, technicians and regional distributors.

Repair Chain Stores

Centralized purchasing helps repair chains maintain standardized battery models, predictable inventory and consistent quality across multiple service locations.

Private Label Battery Brands

OEM customization allows battery brands to add custom logos, product labels, retail boxes, barcodes, instructions and warranty information.

E-Commerce Battery Sellers

The Galaxy S20 Ultra battery is suitable for online sellers requiring accurate model identification, retail-ready packaging and repeat wholesale supply.

International Distributors

Mixed-model purchasing, export documentation and multiple shipping methods support regional distribution and international wholesale 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 S20 Ultra and S20 Ultra 5G Samsung Galaxy S20 Ultra platform
Battery Model EB-BG988ABY EB-BG988ABY battery platform
Capacity Listed 5000mAh 5000mAh typical and 4855mAh minimum
Standard Voltage 3.83V Original model-specific voltage
Battery Chemistry Pure Cobalt Lithium-Ion Cell Lithium-Ion Battery
Product Condition Brand-New Replacement Battery Brand-New When Originally Installed
Flex Connection Model-Matched Replacement Flex Original Factory Flex
Protection Board PCM With Overcharge, Over-Discharge and Short-Circuit Protection Original Factory Protection System
Installation Method Professional Repair Installation Required Installed During Manufacturing or Authorized Service
Device Recognition Depends on Battery Configuration, Connector Quality and Installation Integrated With the Original Device System
Branding ESC, Neutral Label or Customized Private Label Original Samsung 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 Aftermarket 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

The original Galaxy S20 Ultra battery is specified at 5000mAh typical and 4855mAh minimum. Replacement-battery capacity, runtime and compatibility should be verified through sample testing before bulk approval. Samsung be

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 improve batch consistency.

Capacity Verification

Professional battery analyzers are used to verify whether the measured capacity meets the approved 5000mAh product specification.

PCM and Flex Testing

The protection board, flex cable and connector are checked for electrical function, alignment, appearance and connection integrity.

Charging and Discharging Test

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

Protection Testing

Overcharge, over-discharge and short-circuit protection functions are checked according to the approved production procedure.

Aging Inspection

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

Final Inspection

Battery appearance, model information, flex position, labels, quantities, packaging and customer requirements are checked before order release.

OEM and Private Label Service

Custom Battery Labels

Customer logos, battery models, capacities, voltages, warning information, batch numbers and traceability codes can be printed on the battery 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 models.

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 models and customer branding can be customized for international shipments.

Ordering Information

Quotation Requirements

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

Sample Evaluation

Professional buyers can request samples to evaluate battery dimensions, connector position, voltage, measured capacity, installation compatibility and charging performance.

Compatibility Confirmation

Confirm the phone model number, original battery code EB-BG988ABY, connector orientation and required product configuration before ordering.

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 Galaxy S20 Ultra battery?

The replacement battery has a listed capacity of 5000mAh and a standard voltage of 3.83V.

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

2. What is the battery model for the Samsung Galaxy S20 Ultra?

The applicable battery reference is EB-BG988ABY. Buyers should compare the battery code, connector position and device model before ordering.

3. Which phones are compatible with the EB-BG988ABY battery?

The battery is designed for Samsung Galaxy S20 Ultra and compatible Galaxy S20 Ultra 5G variants in the SM-G988 series.

Compatibility should be confirmed for each regional phone version before installation.

4. Does the battery include a flex cable and protection board?

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

The PCM provides overcharge, over-discharge and short-circuit protection.

5. 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.

6. Who should install the Galaxy S20 Ultra battery?

Installation should be completed by a trained mobile phone repair technician using suitable tools and safe operating procedures.

The phone should be powered off, and the original battery should be disconnected before other internal components are handled.

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, 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.

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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

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Minimum Order: 10 Units
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