# Power adapter HP L56786-001 120W for HP notebooks — AC adapter, replacement charger

**URL:** https://aio.lv/en/product--hp-l56786-001--3969475
**Data updated:** 2026-02-12 09:58 (EET)
**Category:** Other Repair Parts
**Manufacturer:** HP
**Manufacturer code:** L56786-001
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

AC power adapter HP L56786-001 rated at 120W designed for HP notebooks. Provides mains power and battery charging for compatible HP laptop models. Intended as a replacement or spare charger, it ensures stable power delivery for everyday use, travel, and office environments. Ideal for restoring full charging capability and reliable operation.

## Long description

AC power adapter for HP notebooks rated at 120W. This replacement charger supplies mains power and battery charging for compatible HP laptop models, delivering stable output for everyday use, travel, and office environments. The adapter is designed to restore full charging capability and maintain reliable operation when the original power supply is lost or damaged.
Advantages
The adapter offers consistent power delivery at 120W to support intensive tasks and battery charging without frequent voltage drops. Its compact brick design and integrated cable management make it convenient for transport and storage. Built-in safety features protect against overcurrent, overvoltage and short circuits, helping to maintain the longevity of the laptop battery and internal components.
Suitable for
 Replacing a lost or faulty HP notebook AC adapter
 Providing mains power during extended office or home use
 Carrying as a spare charger for travel or remote work
 Powering battery charging and high-load applications such as multimedia or productivity software
Key specifications
 Output power: 120W
 Input: standard AC mains voltage (region-dependent)
 Connector type: HP notebook DC plug (standard barrel or manufacturer-specified shape)
 Protection: overcurrent, overvoltage, short-circuit safeguards
 Form factor: external AC adapter brick with attached DC cable
How to use
Connect the AC adapter to a compatible mains outlet using the supplied AC cord, then attach the DC connector to the laptop power port until it seats firmly. Verify that the laptop indicates charging or external power is connected. When not in use, unplug the adapter from the mains and disconnect the DC plug to reduce standby power draw. Allow the adapter to cool in a ventilated area during prolonged high-load use.
Usage recommendations
Use this 120W adapter with HP notebook models that accept a 120W external supply and the matching connector. Avoid using adapters with incompatible voltage or connector shapes. For reliable operation, keep ventilation clear, use the adapter within rated ambient temperatures, and inspect cables for damage before each use.

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### What is the warranty period?

All HP products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized HP service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

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