Acer laptop power adapter 45W 19V with 1.1×3.0×7.7 mm tip (MPN KP.0450H.017)

This Acer 45W 19V laptop power adapter provides stable DC power for compatible Acer notebooks. Designed as a replacement or spare charger, it supplies up to 45 watts at 19 volts through a barrel-type tip sized 1.1×3.0×7.7 mm to restore battery charging and allow device operation while connected to mains power. The adapter is intended for users who need reliable charging at home, in the office, or on the move.

Advantages

The adapter delivers consistent voltage output to maintain notebook operation and battery charging. Its compact form factor and standardized barrel connector simplify replacement and reduce the need to search for model-specific chargers. Built-in safety features protect against common mains irregularities and help prevent damage to the connected device when used as intended. The unit supports normal charging speeds up to its rated power and can be used continuously while the laptop is in use.

Suitable for

• Replacing a lost or damaged original Acer laptop charger with compatible voltage and tip size
• Carrying as a spare charger for travel or commuting
• Powering an Acer notebook during extended working sessions without relying on battery
• Using as a workshop or office spare for multiple compatible devices

Key specifications

• Output power: 45 W
• Output voltage: 19 V DC
• Connector type: barrel tip, 1.1 × 3.0 × 7.7 mm
• Input: standard AC mains (voltage and frequency depend on regional mains)
• Form factor: external AC adapter with attached cable
• Typical protections: over-voltage, over-current and short-circuit protection

How to use

Connect the adapter to a compatible AC mains outlet using the supplied AC lead, then insert the barrel tip into the laptop power inlet until it seats firmly. Verify the laptop charging indicator to confirm proper connection. Unplug the adapter from the laptop before disconnecting from the mains. Use only with devices that match the adapter's voltage and connector specifications to avoid incompatibility issues.

Recommendations

For safe and reliable operation, use this adapter in environments with stable mains supply, avoid exposure to moisture and extreme temperatures, and inspect the cable and connector periodically for damage. If the laptop exhibits unexpected behavior while charging, disconnect the adapter and consult device documentation or qualified service personnel.