Ultra High-Capacity 3.7V 5000mAh Li-Polymer Battery AS755590
Maximize the runtime of your power-hungry devices with the AS755590 High-Capacity Lithium Polymer Battery. Delivering a massive 5000mAh capacity and 18.5Wh of energy, this 3.7V battery pack is engineered for extended operation in demanding applications. It features a comprehensive safety system, including a built-in Protection Circuit Module (PCM) and an NTC Thermistor for real-time temperature monitoring. With its durable UL1571 AWG28 wires and precise 51021-5P connector, this battery is the ideal power solution for tablets, industrial handhelds, and high-end portable electronics.
Description
Model AS755590 – High Capacity LiPo Battery
Voltage: 3.7V | Capacity: 5000mAh (18.5Wh) | Size: 93.5×56.0x76.0mm

The inclusion of an NTC Thermistor allows the host device to monitor battery temperature during charging and discharging, preventing overheating and ensuring optimal performance. The integrated Protection Circuit safeguards the cells against over-voltage, under-voltage, and short circuits, significantly extending the battery’s lifecycle. Manufactured with high-quality materials and compliant with international safety standards, this battery offers a reliable and efficient power supply for your most critical applications.
Technical Specifications
| Battery Type | Lithium Ion Polymer Battery |
| Part Number | AS755590 |
| Voltage @ Capacity | 3.7V @ 5000mAh (18.5Wh) |
| Protection Circuit | Yes (PCM Included) |
| Thermistor (NTC) | Yes |
| Dimensions (L x W x T) | 93.5mm x 56.0mm x 76.0mm |
| Connector & Wire | 51021-5P Connector Wire: UL1571 AWG28 30mm |
| Charge Current | 0.2C to 0.5C (Standard Charge) |
| Discharge Current | 0.5C to 1.0C (Continuous) |
| Storage Temperature | -20°C to +45°C |
Core Advantages
- ✔
Massive Energy Capacity: With 5000mAh (18.5Wh), this battery provides significantly longer runtimes compared to standard cells, reducing downtime and increasing productivity. - ✔
Advanced Safety Monitoring (NTC): Equipped with a Thermistor (NTC), it offers real-time temperature feedback to the device, ensuring safe operation under heavy loads or varying environmental conditions. - ✔
Comprehensive Protection: The integrated Protection Circuit Module (PCM) prevents damage from overcharging, over-discharging, and short circuits, enhancing user safety. - ✔
Reliable Connectivity: Featuring a standard 51021-5P connector and UL1571 certified wires, it ensures a stable and secure electrical connection. - ✔
Certified Quality: Manufactured under strict quality control measures (ISO9001) and compliant with global safety standards (CE, UL), guaranteeing reliability.
Perfect For Applications
Tablets, E-book readers, and portable monitors.
Rugged PDAs, inventory scanners, and data loggers.
High-end portable DVD players, gaming devices, and GPS navigation systems.
Portable medical monitors and diagnostic equipment.
Customization Services (OEM/ODM)
We understand that every device has unique power requirements. Our services allow you to tailor the AS755590 to your specific needs:
- Connector Customization: Change the 51021-5P connector to JST, Molex, or a custom plug to match your motherboard.
- Wire Length & Gauge: Adjust the UL1571 wire length (currently 30mm) or upgrade the AWG gauge for higher current applications.
- NTC & Thermistor Options: Customize the resistance value (e.g., 10KΩ, 100KΩ) of the NTC to match your device’s thermal management system.
- Battery Shape & Capacity: We can modify the cell stacking to fit unique enclosure shapes or combine cells in series/parallel (e.g., 2S, 2P) for different voltage and capacity requirements.
- Branding: Custom labeling with your company logo and specific part numbers.











