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VTC-905080 3.7V 4500mAh Lithium Polymer Battery for Rugged PDA Terminals, Portable Medical Monitors, Smart IoT Gateways

ParameterSpecification
ModelVTC-905080
Battery TypeRechargeable Lithium Polymer Battery Pack
Nominal Voltage3.7V
Nominal Capacity4500mAh (0.2C discharge to 3.0V)
Energy16.65Wh
Discharge Cut-off Voltage3.0V
Standard Charging Time6.5 hours
Rapid Charging Time1.5 hours
Cycle Life≥500 Times (0.2C charge/discharge, residual capacity ≥70%)
Internal Resistance (AC 1KHz)≤120mΩ
Cell Dimensions (Max)9.0mm (T) × 50.0mm (W) × 80.0mm (L)
Cell WeightApprox. 78g

VTC-905080 3.7V 4500mAh Li-ion Polymer Battery Factory Manufacturer in China

The VTC-905080 3.7V 4500mAh lithium polymer battery pack is a high-performance rechargeable power solution designed for professional B2B electronics and industrial applications. Offering a nominal capacity of 4500mAh and a total energy output of 16.65Wh, this battery pack features a standard nominal voltage of 3.7V and operates within a charge temperature range of 0°C to +45°C and a wide discharge temperature range of -20°C to +60°C. With compact physical dimensions (a maximum pack thickness of 9.2mm, width of 50.5mm, and length of 82.5mm), the cell weight is approximately 78g, making it highly suitable for integration into slim handheld systems. Safety and reliability are fully guaranteed through an integrated high-quality Protective Circuit Module (PCM), featuring the Seiko S-8261DAI-M6T1U protection IC, dual 8205A MOSFETs, and a built-in 10KΩ NTC thermistor (B3435) for real-time thermal monitoring.

As a dedicated battery manufacturer, VTCBATT offers comprehensive factory-direct supply, OEM/ODM customization, stable sample development, and large-scale batch manufacturing capabilities. We provide custom-designed wire leads (such as UL1007 AWG24) and specialized connector options (including the JST PHR-3P housing) to match the unique mechanical and electrical needs of equipment developers and distributors worldwide.

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Custom Wire Harness Assembly

VTCBATT delivers this battery pack fully pre-assembled with a professional custom wire harness. Featuring three flexible UL1007 AWG24 lead wires (Red, Black, Yellow for NTC) with a standard length of 30mm ± 3mm and a polarized JST PHR-3P connector, it allows plug-and-play installation into host device PCBs, eliminating manual soldering, saving assembly time, and reducing manufacturing defects.

High Current Output & Stable Discharge

Engineered for high reliability under variable loads, this lithium polymer battery supports a maximum continuous discharge current of 1.0C (4500mA). The cell maintains a steady 3.7V voltage discharge plateau, preventing unexpected system voltage dropouts in mobile receipt printers, GPS tracking transmitters, and wireless security cameras during peak data transmission pulses.

Seiko PCM Protection & NTC Thermistor

Equipped with the high-reliability Seiko S-8261DAI-M6T1U protective IC and dual 8205A MOSFET package, this lithium polymer battery pack guarantees robust defense against overcharging, over-discharging, and short circuits. It integrates a 10KΩ NTC thermistor (B3435) for real-time temperature telemetry, allowing smart host devices to perform thermal shutdown and ensure stable, safe operation.

Seiko-PCM-Safety
Ultra-High-Capacity-Density

High Capacity & Low Profile

The VTC-905080 battery pack packs a massive 4500mAh nominal capacity (16.65Wh) within an ultra-low profile cell design of just 9.0mm max thickness (9.2mm pack max). This high energy density footprint is ideal for sleek, compact industrial hand-held devices and portable medical diagnostic monitors that demand extensive runtime without adding weight or volume.

Full Certification & Extended Warranty

VTCBATT High Temperature 3.7v 95mAh 801019 LiPo batteries meet global certifications including CB, CE, UL, and UN38.3, and offer a 14-month warranty—two months longer than standard—to maximize customer confidence and profit.

Full Certification

VTCBATT High Temperature 95mAh 801019 3.7V lipo battery passed all the major global certifications, such as CB, CE, EN61000, IEC62133, MSDS, UN38.3, ROHS, UL, BIS, KC Certification, which makes your product more competitive.

Ultra Long Warranty

Compared to a normal 12-month warranty, VTCBATT lipo batteries have 14-month warranty and two extra months for shipping and customs clearance ,which ensure the customer’s profit.

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VTCBATT Production and Service

Based on long-term and beneficial partnerships,VTCBATT takes strict quality control and standardized manufacturing across each production step.All the batteries are conducted strict quality test to ensure stable performance and long lifespan. Under complete support from pre-sales to after-sales,VTCBATT established nice cooperation with worldwide customers from 80+ countries.

A Benchmark of Automatic Lithium Polymer Battery Manufacturing Line - VTCBATT Modern Facility

From the raw materials mixing to the cell test, VTCBATT adopts an automatic manufacturing process to maximize production efficiency and enhance the batteries quality, safety, and reliability. The entire manufacturing process is monitored and 100% tested before flowing to the next procedure to ensure zero defects before delivery.

Over the past 20 years, VTCBATT has built strong partnerships with customers in more than 50 countries worldwide. With reliable quality, responsive service, and tailored battery solutions, we have earned the trust of our clients—many of whom have maintained long-term cooperation and lasting friendships with us for over a decade. Together, we continue to grow and move forward toward a brighter future.

Application

Application for 4500mAh 905080 3.7v polymer lithium ion battery

With its moderate 4500mAh high capacity, slim 9.2mm profile, and robust safety protection circuitry, the VTC-905080 lithium polymer battery pack is optimized for a diverse range of portable and smart electronic devices. Key B2B application areas include industrial rugged PDAs and handheld barcode scanners, portable medical patient monitors and ECG units, remote smart environmental IoT gateways, and battery-powered outdoor wireless security cameras. The flat geometry and stable 3.7V voltage plateau provide these low-to-medium-drain devices with consistent operating voltages and long runtime, ensuring uninterrupted operation during critical service shifts. Recognizing that industrial equipment has strict structural and communication requirements, VTCBATT provides professional application-specific customization services. We support custom wire harness lengths, custom thermal monitoring via NTC thermistors, tailored protection board thresholds, customized labeling, and advanced packaging options. VTCBATT offers competitive factory-direct wholesale pricing, comprehensive sample development, and rigorous QA testing (including visual, mechanical, electrical, and environmental testing) to support brand owners, equipment manufacturers, and distributors in secure batch supply chains.

GPS Asset Tracker

Supports continuous asset tracking and real-time GPS location monitoring for international cargo container shipping logistics.

Industrial Control Panel

Backs up critical system data and maintains power for wall-mounted industrial HMI touch screen panels.

Portable-Medical-Monitor
Portable Medical Monitor

Provides reliable backup power for portable ECG monitors and medical equipment to ensure patient safety.

Portable-Outdoor-Projector
Portable Outdoor Projector

Enables high-fidelity outdoor audio and portable LED projector playback with stable high-capacity rechargeable energy supply.

Rugged PDA Terminal

Powers industrial barcode scanners and handheld PDA terminals with long-lasting energy for full-shift warehouse logistics.

Smart IoT Gateway

Ensures uninterrupted data transmission for smart environmental IoT gateways and remote wireless telemetry base stations.

Smart Security Camera

Guarantees constant surveillance operation for battery-powered outdoor smart security cameras in remote wireless monitor zones.

Thermal-Receipt-Printer
Thermal Receipt Printer

Delivers high-capacity current pulses to power mobile thermal receipt printers in retail and delivery logistics.

Technical Parameters & PCM Schematic

Fully extracted parameters from the official product specification datasheet and redrawn active electrical layout.

ParameterSpecification
ModelVTC-905080
Battery TypePolymer Battery Pack
Nominal Voltage3.7V
Nominal Capacity4500mAh (0.2C discharge to 3.0V)
Energy16.65Wh
Maximum Charge Voltage4.2V ± 0.02V
Discharge Cut-off Voltage3.0V
Standard Charging Current0.2C (900mA)
Maximum Charging Current1.0C (4500mA)
Standard Discharging Current0.2C (900mA)
Maximum Discharging Current1.0C (4500mA)
Standard Charging Time6.5 hours
Rapid Charging Time1.5 hours
Cycle Life≥500 Times

(0.2C charge/discharge,

residual capacity ≥70%)

Internal Resistance (AC 1KHz)≤120mΩ
Cell Dimensions (Max)9.0mm (T) × 50.0mm (W) × 80.0mm (L)
Pack Dimensions (Max)9.2mm (T) × 50.5mm (W) × 82.5mm (L)
Lead WiresUL1007 AWG24 (Red, Black, Yellow),

Length: 30mm ± 3mm

Connector ModelJST PHR-3P
Protection ICSeiko S-8261DAI-M6T1U
MOSFET8205A × 2
NTC Thermistor10KΩ ± 5%, B3435 ± 5%
Cell WeightApprox. 78g
Charging Temperature0°C to +45°C (RH: 45% to 85%)
Discharging Temperature-20°C to +60°C (RH: 45% to 85%)
Storage Temperature-10°C to +45°C (RH: 45% to 85%)

PCM Circuit Features & Wire Interface

Seiko Protection Core:

Prevents overcharge voltage exceeding 4.28V ± 0.02V

and over-discharge falling below 3.0V.

Dual MOSFET Package:

Features the 8205A with typical RDS resistance ≤ 30mΩ

to minimize heating under full 1.0C continuous current.

Yellow Telemetry Wire:

Wired directly to a 10KΩ NTC thermistor inside the pack,

providing a temperature sensor path for standard B2B charger systems.

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