SP-1 Project

Rugged Mobile Device Charging Case

SP-1 designed and manufactured rugged Samsung S20 charging cases, integrating protected storage and simultaneous charging for 12 phones and 12 USB battery packs in 1 field-ready system.

Client

Rowden Technologies, a specialist in digitalisation and sensor data for the defence and security sector.

Objective

Develop a secure, field-ready transport and charging system for Samsung S20 devices and supplementary USB battery packs. The system needed to keep phones and backup power sources protected, organised and ready for use while reducing the complexity of charging and managing multiple devices.

Challenge

Field teams rely on mobile devices being charged, protected and ready to deploy, often in environments where standard charging infrastructure is limited or unavailable.

The client needed a rugged system that could store, transport and charge multiple mobile handsets alongside their supporting USB battery packs.

Solution

SP-1 designed and manufactured a rugged mobile device charging case tailored to the handset and supporting USB battery pack requirements.

The internal layout was engineered to maximise device density while keeping the system practical to use. Custom foam cutouts provided protected storage for 12 handsets and 12 USB battery packs, helping users quickly identify missing equipment and keep each device secure during transport.

The integrated power layout supported simultaneous charging for all 24 devices, turning a loose collection of phones, batteries, chargers and cables into a single field-ready charging system.

Key features included:

  • Storage and charging for 12 mobile handsets
  • Dedicated slots for 12 USB battery packs
  • Simultaneous charging for 24 devices
  • Custom foam inserts for protection and inventory checks
  • Integrated power distribution
  • Compact dual-layer internal layout
  • Rugged transport case for demanding field use
  • Reduced cable clutter and separate charging equipment
  • Designed for grab-and-go deployment

Outcome

The finished case gave Rowden Technologies a reliable way to transport, protect and charge a fleet of mobile devices from 1 rugged system. By combining phone storage, battery pack storage and simultaneous charging into a single portable case, SP-1 reduced setup complexity, improved equipment organisation and helped ensure devices were ready for use when needed.

Project highlights

Client: Rowden Technologies
Application: Mobile device transport and charging
System type: Rugged mobile phone charging case
Device capacity: 12 Samsung S20 handsets
Power bank capacity: 12 USB battery packs
Charging: Simultaneous charging for 24 devices
Core functions: Transport, storage, protection, charging and inventory control
Environment: Field and security operations
SP-1 role: Case design, internal layout, foam design, power integration and manufacture

Rugged mobile device charging case for phones and USB battery packs
Interior of mobile device charging case showing phones and USB battery packs