Catalog   /   Mobile Phones & Gadgets   /   Mobile Accessories   /   Power banks   /   Sigma

Sigma SI20A4QL

Photos - Power bank Sigma SI20A4QL
Photos 6
Outdated Product
A functional power bank with a capacity of 20,000 mAh from the brand Sigma, introduced to the market in 2025. The model is designed as a universal solution for a wide range of users and features support for multiple charging protocols along with smart operating modes. When using one of the three outputs (two USB-A and one USB-C), the device can provide fast charging with a maximum power of up to 22.5 W. The list of supported standards includes not only popular Power Delivery 3.0 and Quick Charge 3.0 but also protocols from Samsung, Huawei, and OPPO VOOC. It is important to note that when multiple gadgets are connected simultaneously, the total output power is limited to 15 W, and charging occurs in standard mode. One of the key features is the support for pass-through charging, allowing bo...th the Sigma SI20A4QL power bank and the device connected to it to be charged simultaneously. Additionally, there is a special low current mode for safely charging low-power accessories, such as wireless headphones or fitness trackers. The body is made of durable and fire-resistant plastic, and the informational display allows you to accurately track the remaining charge. Standout features include the extensive support for multiple charging protocols, ability to fast-charge multiple devices, and pass-through charging feature, which sets this power bank apart from others in the market.
add to listmy lists
Sigma SI20A4QL
20000 mAh
30000 mAh
Colour
Battery capacity20000 mAh
Real capacity12000 mAh
Battery capacity74 W*h
Battery typeLi-Pol
Charging gadgets / outputs
USB-C1 pcs
USB-A2 pcs
USB-C120 W
USB-A122.5 W
USB-A222.5 W
Power output (all ports)15 W
Power bank charging
Power bank charging inputsUSB-C
Power bank charge current via USB3 А
Power bank charge power18 W
Features
Fast chargeQuick Charge 3.0
Power Delivery 3.0
Samsung Adaptive Fast Charging
Huawei Fast Charge Protocol
Huawei SuperCharge Protocol
OPPO VOOC
Bundled cables (adapters)USB-C
Featuresinfo display
General
Body materialplastic
Dimensions146x68x28 mm
Weight421 g
Added to E-CatalogJuly 2025

A functional power bank with a capacity of 20,000 mAh from the brand Sigma, introduced to the market in 2025. The model is designed as a universal solution for a wide range of users and features support for multiple charging protocols along with smart operating modes. When using one of the three outputs (two USB-A and one USB-C), the device can provide fast charging with a maximum power of up to 22.5 W.

The list of supported standards includes not only popular Power Delivery 3.0 and Quick Charge 3.0 but also protocols from Samsung, Huawei, and OPPO VOOC. It is important to note that when multiple gadgets are connected simultaneously, the total output power is limited to 15 W, and charging occurs in standard mode. One of the key features is the support for pass-through charging, allowing both the Sigma SI20A4QL power bank and the device connected to it to be charged simultaneously.

Additionally, there is a special low current mode for safely charging low-power accessories, such as wireless headphones or fitness trackers. The body is made of durable and fire-resistant plastic, and the informational display allows you to accurately track the remaining charge. Standout features include the extensive support for multiple charging protocols, ability to fast-charge multiple devices, and pass-through charging feature, which sets this power bank apart from others in the market.

The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Sigma 2026 - new arrivals, bestsellers, and the most relevant models Sigma.
How to choose powerbank: tips, tricks and useful life hacksDetailed guide on choosing powerbank battery for different application purposes