When sourcing power banks on Alibaba.com, Southeast Asian B2B buyers encounter a wide range of attribute combinations. The 26800mAh capacity with 100W output, LED display, and pass-through charging represents one specific configuration option in the market. This section breaks down what each attribute means, industry standard options, and where this combination fits in the broader market landscape.
Battery Capacity: 26800mAh Explained
The 26800mAh rating translates to approximately 99.16Wh (watt-hours) at the standard 3.7V lithium battery voltage. This is strategically positioned just under the 100Wh limit imposed by most international airlines for carry-on luggage without special approval. For B2B buyers targeting travel accessories, corporate gifts, or mobile professionals, this capacity offers maximum portability within regulatory constraints.
Output Power: 100W USB Power Delivery
100W output requires USB Power Delivery (PD) 3.0 specification support. According to USB-IF standards, PD 3.0 enables up to 100W (20V/5A) through USB-C connectors, making it suitable for charging laptops, tablets, and high-power smartphones simultaneously. PD 3.1, released in 2021, extends this to 240W, but 100W remains the mainstream standard for portable power banks in 2026.
LED Display vs. LED Indicators
There's an important distinction between LED digital displays and LED dot indicators. Digital displays show exact percentage (e.g., "87%") and sometimes real-time voltage/current during PD negotiation. Dot indicators use 4-8 LEDs to show approximate charge levels (25%, 50%, 75%, 100%). B2B buyers should clarify which type they need, as digital displays add cost but provide better user experience for tech-focused markets.
Pass-Through Charging Functionality
Pass-through charging allows the power bank to charge connected devices while the power bank itself is being recharged. This feature is convenient for users who want to maintain continuous power without interruption. However, it generates additional heat and requires more sophisticated battery management systems (BMS) to prevent overheating and battery degradation.

