Overview
The HPL523436 550mAh Lithium Polymer (LiPo) battery is a premium energy solution for medium-drain portable electronics. With 550mAh capacity, it provides roughly 35% more runtime than standard 400mAh cells while maintaining a slim 5.2mm profile. This battery is an ideal replacement for many small RC drones, Bluetooth speakers, and digital cameras that use a 3.7V system.
Key Features
Slim Design: Only 5.2mm thick, making it easy to tuck inside thin plastic enclosures or 3D-printed cases.
Stable Discharge: Maintains a steady voltage throughout the discharge cycle for consistent device performance.
Built-in BMS: Includes a Protection Circuit Module (PCM) to safeguard against over-charging, over-discharging, and short-circuits.
Universal 2-Pin Lead: Comes with standard Red/Black wires, allowing you to easily solder or add a JST-PH or JST-XH connector.
Technical SpecificationsÂ
| Feature | Specification |
| Model Number | HPL523436 / 503437 |
| Nominal Voltage | 3.7V |
| Capacity | 550mAh |
| Charging Voltage | 4.2V (Max) |
| Dimensions | 5.2mm (T) x 34mm (W) x 36mm (L) |
| Chemistry | Lithium-ion Polymer |
| Internal Resistance | ≤ 60mΩ |
| Discharge Cut-off | 2.75V – 3.0V |
Usage & MaintenanceÂ
Ideal Charger: Use a constant-current/constant-voltage (CC/CV) charger like the TP4056.
Storage: If storing for more than a month, keep the battery at ~3.8V for maximum longevity.
Caution: Avoid physical impact or exposure to extreme heat. Always monitor during charging.
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