Description

Battery Pack Overview

14.8V 50Ah Li-ion Battery Pack (4S10P)

For OEM/ODM sourcing: quick validation of voltage, capacity, size, current and temperature window — then drill down into grouped specs.

Model: 21700-5000-4S10P
Nominal: 14.8V / 50,000mAh
Max Size: 151×99×131mm
Cycle Life: ≥800
Weight: ~3500g
IR: ≤260mΩ
Why this pack fits procurement needs
  • Capacity clarity: nominal capacity based on 0.2C standard charge/discharge condition.
  • Stable output: designed for stable discharge voltage under standard load conditions.
  • Consistency for batch: focus on capacity/voltage/resistance consistency for repeat orders.
  • Safety orientation: reduced abnormal-event risks under proper protection & correct charging method.
(Procurement note) Final configuration can vary by housing, connector, BMS/protection and cable length.
Key Specs (Grouped for faster review)
Electrical 14.8V nominal Charge cut-off: 16.8V Discharge cut-off: 11V
Capacity & Life 50,000mAh Cycle life: ≥800 Test: @0.2C
Current & Charger Charge: CC/CV Std: 0.2C Max continuous: 1C Peak discharge: 3C
Operating Temperature
Charge: 0 ~ 45℃
Discharge: -20 ~ 60℃
Recommended ambient range for performance and longevity; please confirm for your device enclosure and heat conditions.
Storage Temperature
-20 ~ 25℃ (12 months)
-20 ~ 45℃ (3 months)
-20 ~ 60℃ (1 month)
Storage time depends on SOC, packaging, and environment stability.
Full Specification Reference
Item Specifications Remark
Model No. 21700-5000-4S10P  
Nominal Voltage 14.8V  
Nominal Capacity 50000mAh @0.2C standard charge&discharge
Max Dimensions 151*99*131mm L*W*H
Cycle Life ≥800 times  
Charge Method CC/CV with professional charger  
Charge Cut-off Voltage 16.8V  
Discharge Cut-off Voltage 11V  
Standard Charge Current 0.2C  
Standard Discharge Current 0.2C  
Max Continuous Charge Current 1C  
Continuous Discharge Current 1C  
Peak Discharge Current 3C  
Recommended Operation Ambient Temperature Charge: 0~45℃   Discharge:-20~60℃  
Storage Temperature -20~25℃ 12 months
-20~45℃ 3 months
-20~60 ℃ 1 month
Internal Resistance ≤260mΩ  
Weight Approx. 3500g  
Typical Applications

Suitable for devices requiring stable power output and reliable pack consistency:

Bluetooth speakerFlashlightSolar light Door lockGPS trackerParking device Medical devicePOS machinesPower tool Garden toolSweeperE-scooter E-bikeOutdoor power…etc
Li-ion battery applications image
What can be customized for your project
Protection / BMS Over-charge / over-discharge / over-current / temperature options
Connector & Cable Connector type, cable length, pin definition, harness layout
Housing & Label Case structure, mounting method, branding label requirements
If you send your device power requirement (peak/continuous current), space limit (L×W×H), and charger spec, it’s easier to confirm fitment quickly.
To quote faster, please confirm:
connector type cable length peak/continuous current pack dimensions limit charger spec (CC/CV)
This page is for reference. Final spec depends on configuration and compliance needs for your shipping destination.

Certificates

Safety certificate: CE,CB, IEC62133, UL, PSE
Environmental certificate: ROHS, REACH
Quality management certificate: ISO9001, ISO14001, BSCI
Shipping certificate: UN38.3, MSDS, Air/Sea Transport Identification Classification Report

ISO19001

CB certificate

CE certificate

RoHS certificate

UN38.3 certificate

Production Process

Exhibitions

Brand Introduction

Founded in 2011,Shenzhen iBorn Energy has been China’s leading lithium battery manufacturer for over 15 years.Our main products are lithium-ion cells and battery packs, lithium polymer batteries, lithium iron phosphate (LiFePO4) batteries, Li-SOCl2(ER) batteries, home energy storage batteries, Solar Batteries, etc. Our Products are widely used in Portable Electronics like Bluetooth headsets portable speakers GPS Trackers, IoT devices, Electric Scooters, Electric Bikes, Solar Lights, Home Energy Storage Systems, Recreational Vehicles, Marine and Boats, Golf Carts, Electric Vehicles, etc.
Our factory is ISO9001& ISO14001 certified and located in the Dongguan City, Guangdong province, covering an area of 150,000 square meters, with over 1000 employees.Currently, the production capacity is: li-ion battery 300,000 pcs/day, lithium polymer battery 100,000 pcs/day, lithium iron phosphate battery 50,000 pcs/day, Li-SOCl2 battery 50,000 pcs/day.

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