Futurebatt ASUS laptop charger 65W 19V 3.42A

Futurebatt 65W AC laptop adapter that supplies 19V at 3.42A with a 5.5×2.5mm barrel connector — built to replace many ASUS laptop chargers.

This Futurebatt power supply is a universal-style replacement adapter designed for a broad range of ASUS notebooks including VivoBook, Transformer Book Flip, and several K/X series models. Engineered for global use, it accepts 100–240V input and delivers stable 19V/3.42A output. The unit ships with a detachable power cord and includes a standard barrel connector (5.5×2.5mm) that matches the charging ports used on many ASUS machines and compatible part numbers.

Which ASUS models will this adapter work with?

This adapter covers hundreds of ASUS model variants across VivoBook, Transformer, K-, X- and U-series lines. It’s suitable for many common model families listed by ASUS and frequently replaces OEM part numbers such as ADP-65GD and PA-1650 series.

• Covers VivoBook Q301/Q400/Q500/ X401/X501/X550/X551 and related models
• Compatible with Transformer Book Flip TP500/TP550 series and select Transformer models
• Works with K50/K52/K53/K55/X53/X54/X75 and many U-series laptops
• Replaces OEM part numbers like ADP-45BW, ADP-65JH, PA-1650-78, EXA0703YH

How safe and reliable is the Futurebatt power adapter?

Futurebatt builds this adapter using over-current, over-voltage and thermal protections to reduce risk of damage to your laptop. The adapter is constructed from quality components to keep output stable under typical usage and includes safeguards against short circuits and incorrect voltage delivery.

• Protective features: over-voltage, over-current, short-circuit protection
• Designed for steady 19V 3.42A output under load
• Durable housing and insulated cabling for everyday use
• Includes a 12-month replacement warranty and customer support

What are the electrical specifications and physical details?

The adapter accepts 100–240V AC at 50–60Hz so it can be used worldwide with the correct plug or travel adapter. Output is rated at 19 volts and 3.42 amps for a total of 65 watts. The barrel connector measures approximately 5.5mm outer diameter by 2.5mm inner diameter, shown in the product photos to help confirm fit.

• Input: 100–240V ~ 50–60Hz (international compatible)
• Output: 19V ⎓ 3.42A — 65W total power
• Connector size: 5.5 × 2.5 mm (verify against your laptop)
• Package: 1× AC adapter, 1× detachable power cord

How do I confirm this adapter is right for my laptop?

Cross-check your laptop’s original charger label for voltage (19V) and current (3.42A) and compare the barrel plug size. If your OEM part number appears in the compatible list or matches one of the common ASUS part codes, this unit is likely compatible.

• Match voltage: 19V required by the laptop
• Match current or equal/higher (3.42A recommended)
• Verify connector diameter equals 5.5×2.5mm
• Compare OEM part numbers listed in the product description

Who is this for: This Futurebatt 65W charger is ideal for ASUS laptop owners needing a dependable replacement or spare power adapter—students, remote workers, technicians, or anyone who travels and wants a reliable, warranty-backed power source. It’s especially useful if your original charger is lost, damaged, or you want an extra unit for home or office use. Always double-check the output and connector size against your laptop before purchasing to ensure fit and compatibility.