Battery Technology SK90A200225 45W USB-C laptop charger
A 45 W USB-C power adapter with multi-voltage output and short-circuit protection for compatible laptops and Chromebooks
- Battery voltage rating20 V
- Battery capacity20 V AC
- Power adapter voltage20 V
- Power adapter current240 A
- Power adapter wattage45 W
- Measurements6.81 in × 3.66 in × 1.69 in
- 45W fast charging powers compatible laptops quickly
- USB-C PD output supports 5V to 20V devices
- Reinforced cable joint withstands over 10,000 bends
- Intelligent chip protects against over-current, over-voltage, overheating, short circuits
- Compact 6.81 x 3.66 x 1.69 in design suits travel use
What it is and who it's for
A 45W USB-C power adapter built for Chromebooks and laptops that charge through USB Power Delivery. It suits students, mobile professionals and IT teams replacing a lost or damaged original charger.
The spec that decides fit
Output reaches 45W through 20V at 2.25A with additional PD steps at 5V, 9V, 12V, 15V and 18V. The unit only works with devices that accept USB-C PD charging; laptops needing barrel connectors or higher wattage cannot use it.
Installation and common issues
Plug the detachable AC cord into the brick, connect the USB-C cable to the laptop and power begins — no drivers required. The reinforced joint survives over 10,000 bends, yet the fixed cable means a damaged wire still replaces the whole adapter.
How it compares
Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.
- Price $18.99
- Cheaper than about 74% of the 27,790 comparable items (median $30.99).
Specifications
| Product | |
|---|---|
| Brand name | BATTERY TECHNOLOGY |
| Model name | SK90A200225 |
| Part number | SK90A200225 |
| Power | |
| Battery voltage rating | 20 V |
| Battery capacity | 20 V AC |
| Power adapter voltage | 20 V |
| Power adapter current | 240 A |
| Power adapter wattage | 45 W |
| Size & build | |
| Measurements | 6.81 in × 3.66 in × 1.69 in |
| Product weight | 0.5 lb (0.23 kg) |
| Compatibility | |
| Compatible with | Laptops |
Questions about this item
What does the 45W output mean for my laptop in daily use?
It delivers up to 45 watts over USB-C, charging compatible laptops such as HP Chromebook x360 models, Lenovo ThinkPad T480 and T580, and Dell Latitude 5420 and 7410 at their full supported speed.
Which USB-C power standard does the adapter use and what voltage and current limits apply?
It follows USB Power Delivery with fixed output steps of 5V at 3A, 9V at 3A, 12V at 3A, 15V at 3A, 18V at 2.25A and 20V at 2.25A, capping at 45W.
What are the physical dimensions and weight, and what comes in the box for mounting or placement?
The brick measures 6.81 by 3.66 by 1.69 inches and weighs 0.5 pounds; the package includes the adapter, a detachable power cord and an instruction sheet.
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