How to Buy a Laptop Power Bank Online: A 2025 Guide to Specs, Price, and Compatibility

The quest for productivity doesn’t end when the power does. Whether you’re a student in a lecture hall, a professional at a coffee shop, or a remote worker during an outage, the ability to charge your laptop on the go is a superpower. If you’re looking to “buy laptop power bank online”, you need to know more than just the price; you need to understand the critical technical specs that separate a laptop-compatible power bank from a standard phone charger.

Crucial Specifications: What to Look For

Not all power banks are created equal. Charging a laptop requires more power and the right technology. Here’s your checklist:

1. High Capacity (mAh & Wh): Laptop batteries are large. A 20,000mAh power bank is the minimum starting point, but for a meaningful charge, aim for 30,000mAh or higher. More importantly, look for the Watt-hour (Wh) rating. This is a truer measure of energy. Most airlines allow power banks up to 100Wh without special permission. A 27,000mAh power bank at 3.7V is exactly 100Wh.
2. High Wattage Output (W): This is the most critical factor. Most laptops require 45W to 100W to charge, especially while in use.
   • Ultrabooks (MacBook Air, Dell XPS 13): A 45W USB-C Power Delivery (PD) port is often sufficient.
   • High-Performance Laptops (MacBook Pro, Gaming Laptops): You will likely need 65W, 100W, or even higher.
   • Tip: Always check your laptop’s charger to see its wattage output (e.g., “Output: 20V⎓3.25A” = 65W).
3. Power Delivery (PD) Protocol: This is a non-negotiable feature. Power Delivery is a fast-charging protocol that allows for higher wattage over USB-C, which is how modern laptops charge. Ensure the power bank explicitly states it supports USB-C PD.
4. The Right Connector: Most PD power banks charge laptops via a USB-C to USB-C cable. However, some older laptops use proprietary barrel plugs. For these, you need a special “DC adapter tip” that is compatible with the power bank’s DC output port.

Price Expectations and Recommended Brands

Given the high capacity and advanced technology, laptop power banks command a premium. Expect to pay:

• 45W-65W PD Models (30,000mAh): ₦25,000 – ₦35,000
• 100W+ PD Models (40,000mAh+): ₦40,000 – ₦60,000+

Trusted brands in this segment include Romoss, Oraimo, Ugreen, Shargeek, and Anker. When shopping online on Jumia or Konga, use search terms like “65W power bank,” “laptop power bank,” or “PD power bank” and carefully filter by the specifications listed above. Reading reviews that mention laptop charging is also invaluable. This purchase is an investment in uninterrupted productivity.