The Gerlax 50000mAh Power Bank (Model P7i/P501) is a high-capacity portable charger designed for long-term power needs, featuring a digital display, emergency camping lights, and multi-port input (Type-C/Micro). It offers 2.1A fast charging, making it suitable for travel, camping, and charging smartphones up to 10–12 times.
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Key Features and Performance
- Capacity: 50,000mAh (
250Wh
250Wh
).
- Charging Capability: Can charge a smartphone approximately 10–12 times or a tablet 3–4 times.
- Charging Speed: Features 2.1A fast charging.
- Input/Output: Includes 2-port input (Type-C and Micro).
- Design: Equipped with a digital display for battery level and integrated emergency/camping lights.
- Recharge Time: Due to its high capacity, a 50,000mAh power bank may take 16–20 hours to charge at 5V/2A, or 9–11 hours with 1
Important Considerations
- Usable Capacity: Expect roughly 70–85% of the total capacity to be available for charging, as voltage conversion consumes power.
- Weight/Size: High-capacity power banks are generally heavier and less portable than smaller capacity models, suitable for camping or extended trips rather than daily pocket carry.





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