1. Product positioning and core advantages
Precise positioning: a portable all-rounder in one step. It is aimed at users who need fast, portable charging for 1-2 devices.
Power dessert: 45W power is enough to meet the peak charging needs of most thin and light notebooks (such as MacBook Air, XPS 13, Apple 17), and can provide full-blooded fast charging for mobile phones and tablets.
Balance between size and efficiency: Compared with traditional 65W chargers, 45W can achieve high performance while being smaller, lighter, and less costly, which is the ultimate embodiment of portability.
Core advantages (compared to traditional silicon-based chargers):
Smaller and lighter: GaN materials allow for a significant increase in switching frequency, thereby reducing the size of components such as transformers and capacitors, achieving "small size, high power".
Higher efficiency, lower heat generation: higher efficiency in power conversion, less energy loss in the form of heat, safer and more stable charging.
Support multiple fast charging protocols: It is usually compatible with mainstream protocols such as PD 3.0, PPS, and QC 4+, and can intelligently identify Apple, Samsung, Xiaomi, Huawei and other brand devices and trigger fast charging.
2. Typical target users and usage scenarios
Mobile office workers: Business people who often carry thin and light laptops in and out of cafes, airports, and customer sites, a 45W GaN charger can solve the power anxiety of computers and mobile phones.
Multi-device student party/office worker: In the dormitory, study or workstation, use a 45W charger with dual C ports to charge laptops and mobile phones at the same time, simplifying desktop cables.
Business travelers: The ultimate portability and "one charge and multiple uses" characteristics greatly reduce the travel burden and are the "energy center" in the travel backpack.
Samsung/Google phone users: 45W is exactly the peak charging power of flagships such as the Samsung S24 Ultra, and is the perfect replacement or upgrade for the original charger.
3. Key technical features and key points of purchase
Key technologies:
GaN HEMT (High Electron Mobility Transistor): The cornerstone of achieving high performance.
PPS (Programmable Power Supply) protocol: Especially for Samsung mobile phones, supporting PPS protocol is the key to achieving 45W full blood fast charging.
Multi-dimensional heat dissipation design: Uses metal heat sinks, glue injection, graphene coating, and other technologies to ensure stability during high power output.

Key points for shopping:
Single C port: The purest performance, only providing a maximum power of 45W for a single device.
Dual C ports: The most common configuration, when multiple ports are used at the same time (such as C1: 30W, C2: 15W), the power will be intelligently distributed and the flexibility is the highest.
A+C port: Take into account both new and old devices, but the A port usually does not support high-end fast charging protocols.
Interface configuration:
Fast charging protocol compatibility: Make sure the product supports the fast charging protocol of your main device (such as Apple 20V/2.2A PD, Samsung 45W PPS, Huawei SCP, etc.).
Brand and safety certification: Choose well-known brands such as Anker, Baseus, Greenlink, and Zimi, and check whether they have passed safety certifications such as CCC, CE, UL, etc., to ensure reliable materials and workmanship.
Folding prongs: For users who often go out, folding prongs can avoid scratching other items, which is an important plus.

Higher density: The volume will be further reduced and evolve towards a "cookie charger" form.
Smarter Power Distribution: Dual or even triple ports can support higher power and enable finer, dynamic power adjustments.
AI Temperature Control and Safety: Adds a temperature monitoring chip for smarter overheating protection.
Integration with cables: Some products may launch versions with their own high-quality C to C fast charging cables, further improving portability and user experience.
GaN 45W charger is a benchmark product under the inclusiveness of GaN technology. It successfully combines the two once contradictory characteristics of "high performance" and "portability" to become an efficient energy hub for modern digital life. When purchasing, according to your own equipment situation and main scenarios, choose well-known brand products with appropriate interfaces and protocols, and you can get an excellent experience
