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Our courier will deliver to the specified address
Inside Dhaka: 70 TK
Outside Dhaka: 130 TK
2,520৳
Our courier will deliver to the specified address
Inside Dhaka: 70 TK
Outside Dhaka: 130 TK
In a world filled with power-hungry gadgets, having a reliable and high-capacity power bank is a necessity. The HOCO J136B 30000mAh 22.5W Power Bank is a true powerhouse designed to keep all your devices charged and ready to go. From the innovative brand Hoco, a leader in high-quality and affordable mobile accessories, this power bank is a key addition to our Power Banks and Chargers & Adapters collections. It is engineered to provide a robust and versatile charging solution for heavy users, travelers, and anyone who needs long-lasting power on the go. GearBaba is your trusted source for genuine gadgets, and we are proud to offer this product to help you stay connected and productive.
The defining feature of the HOCO J136B is its massive 30000mAh high-density lithium-polymer battery, with a rated capacity of 16500mAh. This enormous capacity is sufficient to charge a smartphone 6-7 times, a tablet 2-3 times, and can even provide a significant boost to a laptop, making it perfect for extended trips, camping, or emergencies. The HOCO J136Bpower bank is not just about capacity; it’s also a speed demon. It supports up to 22.5W fast charging via its USB-A ports, compatible with protocols like QC3.0, FCP, and SCP, and provides PD20W fast charging through its USB-C port, which is ideal for modern iPhones and other PD-compatible devices.
Versatility is a key highlight of the HOCO J136B. It features a total of three output ports: a USB-C port and two USB-A ports, allowing you to charge up to three devices simultaneously. The intelligent power distribution system ensures that each connected device receives the optimal current for efficient charging. The HOCO J136B power bank itself is easy to recharge with its dual input ports—a Micro-USB port and a USB-C port, both supporting 18W fast input charging, which significantly reduces the time it takes to recharge the power bank’s huge battery.
The HOCO J136B also provides a user-friendly experience.HOCO J136B is equipped with a clear LED digital display that shows the exact remaining battery percentage, so you never have to guess when HOCO J136B needs to be recharged. A dedicated green light indicator confirms when fast charging is active. The power bank is built with a flame-retardant ABS+PC shell and multiple layers of advanced safety protection, including overcharge, overcurrent, and short-circuit prevention, ensuring your devices and the power bank itself are safe during use.
| Specification | Details |
| Brand | Hoco |
| Model | J136B Sirui |
| Battery Capacity | 30000mAh (Rated Capacity: 16500mAh) |
| Battery Type | Lithium-Polymer |
| Input (USB-C) | 5V/2.4A, 9V/2A, 12V/1.5A (18W Max) |
| Input (Micro-USB) | 5V/2A, 9V/2A, 12V/1.5A (18W Max) |
| Output (USB-C) | 5V/3A, 9V/2.22A, 12V/1.67A (PD20W) |
| Output (USB-A1/A2) | 5V/3A, 9V/2A, 10V/2.25A, 12V/1.5A (22.5W Max) |
| Simultaneous Output | 5V/2A (Max) |
| Supported Protocols | PD3.0, QC3.0, QC2.0, FCP, SCP, AFC |
| Material | ABS + PC (Flame Retardant) |
| Dimensions | 149 x 69 x 41mm |
| Weight | 608g |

Q1: What is the rated capacity of the power bank? A1: The power bank has a total battery capacity of 30000mAh and a rated capacity of 16500mAh. The rated capacity is the actual power available for output after conversion losses.
Q2: Can I charge a laptop with this power bank? A2: While it can provide a charge to many laptops, the 20W PD output is most suitable for ultrabooks or keeping a laptop charged in an emergency rather than full-speed charging.
Q3: How long does it take to fully recharge the power bank? A3: With an 18W fast charger, the massive 30000mAh power bank can be fully recharged in approximately 6-8 hours.
Q4: Is the power bank safe for air travel? A4: The power bank has an energy rating of 111Wh, which is within the 100Wh to 160Wh limits of most airlines for carry-on luggage, but it’s always best to check with your specific airline’s regulations beforehand.
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