The Klarus K5 is made for outdoor users who want backup power without carrying a bulky brick. At 157g (5.5oz), it is light enough for an ultralight hiking setup, but still gives you a 10000mAh rated capacity for keeping essential devices charged away from mains power.

The full carbon fiber wrap is the main point of difference. Carbon fiber is known for its strength, low weight, temperature tolerance, corrosion resistance, and resistance to shock and vibration, which makes it a smart shell material for gear that may be packed, bumped, and used in rough conditions. The IP68 waterproof rating adds another layer of confidence when the weather turns or your gear gets wet.

Charging options are straightforward, with USB-C input, USB-C output, and USB-A output. The LED numeric display is also useful in the field because it shows the remaining battery percentage instead of relying on vague indicator lights.

Small, light, and well protected, the Klarus K5 is a strong fit for outdoor kits where every gram and every charged device matters.

Key Features

• Carbon Fiber Wrap: Helps protect the internal battery while keeping the power bank light and compact for outdoor carry.
• 10000mAh Capacity: Provides portable backup power for phones, lights, GPS units, and other small USB-powered devices.
• IP68 Waterproof Rating: Supports use in wet outdoor conditions where standard power banks can be a liability.
• Pocket-Sized Build: Measures 105.7mm x 63.4mm x 13.6mm (4.2 inch x 2.5 inch x 0.5 inch) for easy pack or jacket pocket storage.
• Lightweight Design: Weighs 157g (5.5oz), making it well suited to hiking, mountaineering, and lightweight outdoor kits.
• Digital Battery Display: Shows the remaining battery level as a clear percentage so you can check power at a glance.
• USB-C and USB-A Output: Gives flexible charging options for common cables and portable outdoor electronics.