# Hardware Design Principles

DeCharge chargers are engineered for real-world durability, modularity, and ease of deployment. Whether installed in a residential garage, a rural roadside, or a public mall parking lot, the hardware is designed to be reliable, serviceable, and future-ready.

This section outlines the guiding principles, physical design attributes, and embedded technologies that make DeCharge hardware uniquely suited to a distributed, community-powered infrastructure model.

## **Real-World Design Philosophy**

DeCharge hardware is built to operate reliably in a wide range of physical environments and use cases. Key design goals include:

* Rapid deployment with minimal tools or technical support
* Compatibility with standard residential and commercial power supplies
* Protection against dust, water, temperature, and tampering
* Onboard diagnostics and remote controllability
* Longevity across 5-7 years with minimal maintenance

Each charger is developed with mass deployment in mind - ensuring every unit is easy to install, monitor, and maintain at scale.

## **Modular Component Architecture**

All DeCharge devices follow a modular hardware design. This enables faster manufacturing, simplified part replacement, and streamlined field servicing.

Core components include:

<table><thead><tr><th width="212.20001220703125">Component</th><th>Functionality</th></tr></thead><tbody><tr><td>Power Control Unit</td><td>Handles energy input, safety cutoff, and delivery</td></tr><tr><td>PCB with OSEM module</td><td>Tracks energy usage and uptime securely</td></tr><tr><td>Communication Module</td><td>Enables Wi-Fi, 4G/5G, or LAN connectivity</td></tr><tr><td>Enclosure &#x26; Mounting</td><td>Protects internals and supports pole/wall mounts</td></tr><tr><td>Diagnostic Ports</td><td>Used for testing, firmware updates, reset</td></tr></tbody></table>

Each module is separately replaceable or upgradeable, allowing DeCharge to issue OTA (over-the-air) software updates or field-level part replacements without decommissioning the entire unit.

## **Smart Metering and Security**

Every charger includes a secure metering chip. This system enables:

* Precision energy logging (kWh per session)
* Timestamped session data and usage history
* Local signing of every transaction
* Tamper detection and error flagging

Because this metering is built into the hardware itself, DeCharge does not rely on external reporting, manual auditing, or trust-based verification. Each device autonomously generates proof of its own activity.

## **Environmental and Electrical Protection**

DeCharge chargers are built to handle diverse and unpredictable field conditions. All hardware units include:

* IP65 (or higher) rated enclosures to protect against dust and rain
* Ventilation systems and thermal cutoffs to manage overheating
* Ground fault detection and auto-shutdown circuits
* Residual Current Devices (RCDs) to prevent electrical shock
* Overvoltage protection for power surges

Installers are guided to place chargers under shade or canopies when exposed to extreme sunlight. Chargers also include LED indicators for real-time operational status and basic fault diagnosis.

## **Connectivity and Communication**

Each charger is designed to be online 24/7 through at least one of three supported communication modes:

* 4G/5G SIM slot (supports major telecom providers in India, Europe, and North America)
* Wi-Fi (requires dedicated router with minimum 100 Mbps bandwidth)
* LAN (for large sites, hubs, or Titans)

Connectivity allows each unit to:

* Transmit telemetry to the DeCharge backend
* Receive OTA updates
* Be remotely restarted, locked, or diagnosed
* Stream live status data to the host dashboard

Offline buffer storage allows for short-term operation if the internet is temporarily lost, with queued data uploaded once the connection is restored.

## **Mounting Options and Power Interface**

To accommodate different site conditions and charger models:

| Model      | Mount Options | Input Requiremen    |
| ---------- | ------------- | ------------------- |
| Mini       | Wall-mounted  | 230V, 16A (1-Phase) |
| Beast      | Wall or Pole  | 230V, 32A (1-Phase) |
| Titan Mini | Ground Plinth | 415V, 3-Phase, 72A  |
| Titan      | Ground Plinth | 415V, 3-Phase, 90A  |

Mounting kits are included for both standard and delegated installations. Brackets, bolts, and strain relief fittings ensure long-term mechanical safety.

## **Designed for Future Integration**

DeCharge hardware is not static. It includes architecture and spare I/O interfaces for future integration with:

* Energy storage systems (batteries or BESS)
* Rooftop or pole-mounted solar panels
* Dynamic pricing controllers or smart meters
* Peer-to-peer energy trading modules
* Microgrid or vehicle-to-grid (V2G) ecosystems

This ensures that even entry-level devices can evolve with the network, enabling gradual migration toward more advanced use cases without hardware replacement. The modular design also allows Titan Mini and Titan to share a common chassis and communication stack, streamlining integration, diagnostics, and servicing across power classes.

## **Deployment-Ready Packaging**

All DeCharge chargers are shipped in ruggedized packaging with:

* Pre-registered QR codes mapped to owner accounts
* Cable size, breaker rating, and mounting instructions
* User-specific configuration if ordered via delegation
* Printed quickstart and digital onboarding guide

Upon delivery, most chargers can be installed in under 90 minutes by a certified electrician or delegated partner.

DeCharge’s hardware design reflects its larger mission to enable scalable, decentralized infrastructure without complexity. Each charger is a robust, modular node designed to serve users and communities reliably for years to come.


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