Swissten 22013937 Voltbox 20000 is a 20,000mAh power bank with 35W USB-C Power Delivery, built-in USB-C and Lightning cables, and an LED battery percentage display, providing extended capacity for multiple device charges during travel and demanding daily use.

Key Features

• 20,000mAh capacity for charging multiple devices or a single device several times over
• Built-in USB-C cable ready to use without carrying a separate cable
• Built-in Lightning cable for direct iPhone charging with no extra accessories
• 35W USB-C Power Delivery for fast charging of smartphones and compatible tablets
• LED battery percentage display shows exact remaining charge at a glance
• Black colorway with durable outer casing

Product Benefits

• Double the capacity of the Voltbox 10000, suited for multi-day trips or charging multiple devices per day
• Built-in cables cover both Apple Lightning and USB-C Android devices
• 35W PD fast charging significantly reduces wait time compared to standard power banks
• LED percentage display allows precise planning of when to recharge the unit

Technical Specifications

• Model: 22013937 (Voltbox 20000)
• Capacity: 20,000mAh
• USB-C output: up to 35W (Power Delivery)
• Built-in cables: USB-C + Lightning
• Battery indicator: LED percentage display
• Color: Black
• Weight: approx. 350g

Why You'll Love It

• Handles a full weekend of charging without needing a wall outlet
• No separate cables to pack – both USB-C and Lightning are built in
• 35W fast charging gets a phone to usable levels quickly during transit
• Percentage display gives exact data rather than vague LED bar indicators