What is it?

The qUPS-P-BC is the reliable battery-powered UPS HAT that delivers when you need more than just a quick backup. Choose from a range of Li-Ion, LiFePo4, and Sodium-Ion options to ensure your Raspberry Pi project stays on for hours, not just minutes.

Why did you make it?

To create a UPS solution for Raspberry Pi or compatible product, which has long operation time and wide range of battery technology support. Battery should be installed and replaced easily. Capable of powering the system with 12V or 24V power source.

What makes it special?

Flexible and easy to use UPS for future proof and sustainable solutions. It can handle present and future battery chemistries and can be attached projects, which require customization.

Smart Battery-Buffered UPS HAT for Raspberry Pi

Official Product Page: https://aqex.eu/qups-p-bc-raspberry-pi-ups-hat-with-battery.html

1. Product Concept & Strategic Advantages

The qUPS-P-BC is a professional-grade uninterruptible power supply designed to provide extended backup runtimes for Raspberry Pi and other 5V DC devices. Unlike supercapacitor-based solutions, the battery-buffered topology of the qUPS-P-BC allows for hours or even days of operation during a power outage, depending on the connected battery capacity.

Key strategic advantages include:

• Multi-Chemistry Support: Native compatibility with Li-ion, Li-Po, LiFePo4, and Sodium-ion batteries.
• Intelligent AUTO Mode: Features "Safe-Start" logic that only powers the Pi when sufficient energy is available for a complete boot and safe shutdown cycle.
• Industrial Input Range: Supports high-voltage external input (up to 28V) via industrial terminals.
• Deep Discharge Protection: Integrated safety circuits prevent battery damage by disconnecting the load at critical voltage levels.

2. Comprehensive Technical Specifications

Design Note: The Offline topology ensures almost zero power loss and heat generation during standard operation. A momentary (<1ms) voltage transient occurs during power failure; however, the Raspberry Pi's internal regulation easily filters this, ensuring zero system instability or reboot.

3. Supported Battery Technologies & Charging

Design Note: For industrial environments or extreme temperatures, LiFePo4 or Sodium-ion chemistry is highly recommended due to superior thermal stability.

4. GPIO Communication & DIP Switch Setup

The qUPS-P-BC features a flexible GPIO Bank Selection system via onboard GT1-GT2 DIP switches to prevent hardware conflicts with other HATs.

• PFO (Power Fail Out): HIGH = External Power OK / LOW = Backup Mode active.
• LIM (Limit): Signals that the battery has reached the "Safe" threshold (Yellow LED).
• SHD (Shutdown): Handshake signal. Pull LOW after OS halt to cut output power.

5. Visual Diagnostics (LED Group)

6. Intelligent Power Management (IPM)

• Safe-Start Logic: In AUTO mode, the Pi only boots when the "Min" threshold is reached.
• Anti-Reboot Loop: Prevents "zombie" restart cycles during brownouts.
• Threshold Tuning: A precision potentiometer allows manual calibration of the power-fail detection level to compensate for voltage drops in long cables.

7. Estimated Runtimes (4000mAh LiFePo4)

*Note: Final runtimes are dependent on battery capacity, age, and ambient temperature.

8. Scalability & Software Support

• Software Support: Native qups-guard daemon (C/Python) for automated safe shutdown.
• Repository: github.com/aqexhu/qups-guard

HW Version: 2.0 | Released: 2024
Manufacturer: AQEX Electronics | aqex.eu

📦 Shipping Policy

Thank you for supporting independent makers! We strive to get your hardware into your hands as quickly and safely as possible.

1. Processing and Handling

Dispatch Time: Most orders are processed within 2–3 business days, 90% is processed same day.

Tracking: We recommend selecting Tracked Shipping at checkout for peace of mind. Once your order is shipped, you will receive an automated email with your tracking number and a link to follow its progress.

2. Shipping Rates & Delivery Times

Shipping costs are calculated at checkout based on the total weight of your order and your destination.

3. EU Taxes, VAT, and Customs (IOSS)

We use Lectronz’s built-in IOSS (Import One-Stop Shop) scheme to make your import process as smooth as possible.

Orders under €150: * VAT is collected at checkout. You will see the VAT rate for your specific country applied to your total.

No "Surprise" Fees: Because we use IOSS, your package should clear customs quickly without additional handling fees or import taxes upon arrival.

Orders over €150: VAT is not collected at checkout. You will be responsible for paying VAT and any applicable customs duties to your local postal service or courier upon delivery.

Intra-EU Shipping: If this store is shipping from within the EU to another EU country, no customs duties apply, and VAT is handled according to standard EU distance selling rules.

4. Shipping Locations

We currently ship to all EU member states. If your country is not listed at checkout, please contact us for a custom shipping quote.

5. Returns & Damaged Goods

14-Day Right of Withdrawal: As per EU law, you have 14 days to return your order for any reason, provided it is in its original condition.

Damaged Items: If your hardware arrives damaged, please take photos of the packaging and the product immediately and contact us through the Lectronz messaging system. We will arrange a replacement or refund.