VTC-905080 3.7V 4500mAh Lithium Polymer Battery for Rugged PDA Terminals, Portable Medical Monitors, Smart IoT Gateways
| Parameter | Specification |
|---|---|
| Model | VTC-905080 |
| Battery Type | Rechargeable Lithium Polymer Battery Pack |
| Nominal Voltage | 3.7V |
| Nominal Capacity | 4500mAh (0.2C discharge to 3.0V) |
| Energy | 16.65Wh |
| Discharge Cut-off Voltage | 3.0V |
| Standard Charging Time | 6.5 hours |
| Rapid Charging Time | 1.5 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 Weight | Approx. 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.
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.


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.

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.

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

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

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

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

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

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

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

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.
| Parameter | Specification |
|---|---|
| Model | VTC-905080 |
| Battery Type | Polymer Battery Pack |
| Nominal Voltage | 3.7V |
| Nominal Capacity | 4500mAh (0.2C discharge to 3.0V) |
| Energy | 16.65Wh |
| Maximum Charge Voltage | 4.2V ± 0.02V |
| Discharge Cut-off Voltage | 3.0V |
| Standard Charging Current | 0.2C (900mA) |
| Maximum Charging Current | 1.0C (4500mA) |
| Standard Discharging Current | 0.2C (900mA) |
| Maximum Discharging Current | 1.0C (4500mA) |
| Standard Charging Time | 6.5 hours |
| Rapid Charging Time | 1.5 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 Wires | UL1007 AWG24 (Red, Black, Yellow), Length: 30mm ± 3mm |
| Connector Model | JST PHR-3P |
| Protection IC | Seiko S-8261DAI-M6T1U |
| MOSFET | 8205A × 2 |
| NTC Thermistor | 10KΩ ± 5%, B3435 ± 5% |
| Cell Weight | Approx. 78g |
| Charging Temperature | 0°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%) |









