1. Introduction
Thank you for choosing the pTron Dynamo Power 20000mAh Power Bank. This device is designed to provide reliable and fast charging for your electronic devices on the go. Please read this manual carefully to ensure proper use and to maximize the lifespan of your power bank.

Image: The pTron Dynamo Power 20000mAh Power Bank, showcasing its compact design and integrated digital display.
2. Product Overview
The pTron Dynamo Power Bank features a high-capacity battery, multiple charging outputs, and advanced safety protections. It includes built-in cables for convenience and a digital display to show the remaining battery percentage.
2.1 Package Contents
- 1N pTron Dynamo Power 20000mAh Power Bank
- 1N USB-A to Type-C 3A Charging Cable (30cm)
- User Manual
2.2 Device Layout

Image: Diagram illustrating the various components of the pTron Dynamo Power Bank, including the Power On Button, Digital Display, USB-A Output Port, Type-C Input/Output Port, built-in iOS Output Cable, and built-in Type-C Output Cable.
- Power On Button: Activates the power bank and display.
- Digital Display: Shows the exact battery percentage.
- USB-A Output Port: For charging devices via a standard USB-A cable.
- Type-C Input/Output Port: For charging the power bank or charging devices.
- Built-in iOS Output Cable: For charging Apple devices.
- Built-in Type-C Output Cable: For charging Type-C compatible devices.
3. Setup
3.1 Initial Charging of the Power Bank
Before first use, fully charge your pTron Dynamo Power Bank. This ensures optimal battery performance.
- Connect the provided USB-A to Type-C cable to a compatible USB wall adapter (not included).
- Insert the Type-C end of the cable into the Type-C Input/Output Port on the power bank.
- The digital display will show the charging progress. Charge until the display shows "100%".
- Alternatively, you can use a Type-C to Type-C cable (not included) with a PD compatible charger to charge the power bank via its Type-C Input/Output Port.
Note: The Type-C port supports 18W input for fast recharging of the power bank itself.
4. Operating Instructions
4.1 Charging Your Devices
The pTron Dynamo Power Bank offers four output options to charge your devices:
- USB-A Output Port: Connect your device's USB-A charging cable to this port. Supports up to 22.5W fast charging.
- Type-C Input/Output Port: Connect your device's Type-C charging cable to this port. Supports up to 20W Power Delivery (PD) fast charging.
- Built-in Type-C Output Cable: Directly connect this cable to your Type-C compatible device. Supports up to 22.5W fast charging.
- Built-in iOS Output Cable: Directly connect this cable to your Apple device. Supports up to 10W charging.
To begin charging, simply connect your device to any available output port or built-in cable. The power bank will automatically detect the device and begin charging. The digital display will show the remaining battery percentage.
Important: For fast charging (22.5W/20W PD), your device and charging cable must support the respective fast charging protocols (e.g., QC3.0, PD3.0).

Image: The pTron Dynamo Power Bank highlighting its 22.5W fast charging capabilities through its USB-A port, 20W PD Type-C port, built-in 22.5W Type-C cable, and built-in 10W iOS cable.

Image: Illustration demonstrating the pTron Dynamo Power Bank's ability to charge up to four devices simultaneously, with a focus on 20W Power Delivery (PD) for rapid charging.
4.2 Digital Display
The integrated digital display provides real-time information on the power bank's remaining battery capacity, shown as a percentage. This allows you to monitor the charge level accurately.
5. Safety Information and Protection Features
The pTron Dynamo Power Bank is equipped with multiple layers of advanced protection to ensure safe operation for both the power bank and your connected devices. It is BIS certified.

Image: Visual representation of the pTron Dynamo Power Bank's comprehensive safety features, including Over Current Protection, Short Circuit Protection, Over Voltage Protection, Overload Protection, Electrostatic Protection, and Circuit Identification Protection.
- Over Current Protection: Prevents damage from excessive current flow.
- Short Circuit Protection: Automatically shuts down in case of a short circuit.
- Over Voltage Protection: Safeguards against voltage surges.
- Overload Protection: Protects against drawing too much power.
- Electrostatic Protection: Shields against electrostatic discharge.
- Circuit Identification Protection: Ensures proper power delivery to connected devices.
General Safety Precautions:
- Do not expose the power bank to extreme temperatures (hot or cold).
- Do not disassemble, puncture, or modify the device.
- Keep away from water and high humidity.
- Avoid dropping or subjecting the power bank to strong impacts.
- Use only approved charging cables and adapters.
- Keep out of reach of children.
6. Maintenance
- Cleaning: Wipe the power bank with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
- Storage: Store the power bank in a cool, dry place away from direct sunlight. If storing for extended periods, charge it to approximately 50-75% every three months to maintain battery health.
- Battery Life: Lithium Polymer batteries have a limited number of charge cycles. Over time, the capacity may decrease.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Power bank not charging |
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| Device not charging from power bank |
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| Slow charging |
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| Digital display not working |
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8. Specifications
| Model Name | Dynamo Power |
| Battery Capacity | 20000mAh |
| Battery Type | Lithium Polymer |
| USB-A Output | 22.5W Fast Charging |
| Type-C Input/Output | 20W Power Delivery (PD) Output, 18W Input |
| Built-in Type-C Cable Output | 22.5W Fast Charging |
| Built-in iOS Cable Output | 10W Charging |
| Total Outputs | 4 (USB-A, Type-C, Built-in Type-C, Built-in iOS) |
| Special Features | Built-in Cables, Digital Display, Fast Charging, Over Charging Protection, Short Circuit Protection, Over Voltage Protection, Overload Protection, Electrostatic Protection, Circuit Identification Protection |
| Dimensions | 14.5 x 10.3 x 3.9 cm |
| Weight | 420 g |
| Included Accessories | 1N USB-A to Type-C 3A Charging Cable |
9. Warranty and Support
9.1 Manufacturer Warranty
This pTron Dynamo Power Bank comes with a 1-year manufacturer warranty from the date of purchase, covering manufacturing defects only. Please retain your purchase receipt as proof of purchase for warranty claims.
The warranty does not cover damage caused by misuse, accidents, unauthorized modifications, or normal wear and tear.
9.2 Customer Support
For any queries, technical assistance, or warranty claims, please contact pTron customer support:
- Phone: 040-67138888
- Email: support@ptron.in
- Manufacturer Address: Palred Electronics Pvt. Ltd., SY.NO. 56, 1ST FLOOR, GUNDLAPOCHAMPALLY VILLAGE, TECH PARK MTP, TSIIC-IALA NACHARAM, HYDERABAD - 500076, TELANGANA, INDIA





