the fast-charging wars are over. now it’s time to fix usb-c

At a glance:

• USB Power Delivery has become the universal standard for fast charging, surpassing proprietary protocols like HyperCharge and Quick Charge
• Interoperability remains a critical challenge despite standardized specs, with manufacturers using different voltage profiles and cable requirements
• The industry must address fragmentation to ensure seamless charging across devices, from smartphones to laptops

The Evolution of USB Charging Standards

The era of proprietary charging protocols has largely concluded, with USB Power Delivery (PD) emerging as the de facto standard for fast charging. Once, brands like Samsung, Apple, and Qualcomm competed fiercely with their own solutions—HyperCharge, SuperVOOC, and Quick Charge—creating a fragmented landscape that forced consumers to juggle multiple chargers. Today, USB PD’s raw power capabilities have caught up, with devices like the Xiaomi 17 Ultra and OnePlus 15 achieving 90W and 40W+ charging via PD’s Programmable Power Supply (PPS) specification. Even Apple’s iPhone 17 lineup now adopts USB PD AVS (Apple’s proprietary enhancement), though it remains a hybrid approach. This shift reflects a broader industry consensus: universal standards offer scalability and accessory compatibility that proprietary systems cannot match.

However, the transition to USB PD has not been seamless. While PD’s theoretical capabilities are impressive, real-world performance depends on strict adherence to voltage, current, and cable specifications. For instance, Motorola’s TurboPower requires a 6.5A E-marked cable to reach 60W, while Google’s Pixel 10 Pro XL demands a 20V/1.6A charger for peak 37W output. Samsung’s ecosystem further complicates matters, using 9V/5A and 16V/3A profiles for 45W charging depending on the model. These variations mean consumers still need to research charger compatibility, even within a single brand’s product lineup. The result is a paradox: a universal standard that remains fragmented in practice.

The Interoperability Conundrum

Despite USB PD’s dominance, interoperability remains the industry’s unresolved challenge. Manufacturers implement the standard differently, creating friction for users. For example, PPS allows dynamic voltage and current adjustments, mimicking proprietary protocols like SuperVOOC, but not all devices support the same PPS ranges. Laptop charging via PD’s Extended Power Range (EDR) adds another layer of complexity, as does Apple’s AVS, which optimizes iPhone 17 charging but diverges from Android’s PPS. This divergence forces users to navigate a maze of specifications when selecting chargers, undermining the goal of universal compatibility.

The accessory market has begun to adapt, with premium chargers now supporting multiple PD profiles (e.g., PPS and AVS) to cater to diverse devices. However, budget options often lack this flexibility, limiting their utility. Samsung’s ecosystem, for instance, uses distinct cable requirements for different models, while Apple’s AVS remains incompatible with non-Apple accessories unless explicitly certified. This inconsistency highlights a critical gap: standardization must extend beyond technical specifications to include clear labeling, universal certification, and consumer education. Without these, the promise of a unified charging ecosystem remains unfulfilled.

The Path Forward: Standardization and Simplification

To resolve these issues, the industry must prioritize interoperability over incremental speed improvements. The technical foundations for seamless charging already exist—PPS and PD’s dynamic power management can replicate proprietary protocols’ performance without requiring separate ecosystems. The challenge lies in harmonizing implementation. Manufacturers should adopt uniform voltage profiles, current limits, and cable requirements, while third-party accessory makers must ensure broad compatibility. For example, a charger supporting 20V/5A PD should work across all devices, from the Samsung Galaxy S26 Ultra to the iPhone 17 Pro Max, without requiring brand-specific certifications.

Consumer education is equally vital. Users need clear, standardized labeling on chargers and cables to avoid confusion. A 60W PD charger, for instance, should explicitly state its compatibility with devices requiring 6.5A cables, rather than burying this information in fine print. Similarly, manufacturers must disclose real-world charging performance, not just peak specifications. The Pixel 10 Pro XL’s 37W output, for example, is only achievable with specific chargers—a detail that should be prominently highlighted. By prioritizing transparency, the industry can reduce the cognitive load on consumers and accelerate adoption of universal standards.

The Role of Regulatory and Market Forces

Regulatory bodies and market demand are increasingly pushing for standardization. The EU’s upcoming USB-C mandate, which requires all smartphones to adopt USB-C by 2024, exemplifies this shift. While the regulation focuses on port uniformity, its long-term impact could extend to charging protocols, incentivizing manufacturers to align with PD. Similarly, consumer frustration with proprietary systems has driven accessory makers to prioritize PD compatibility. Brands like Anker and Belkin now offer chargers supporting multiple PD profiles, reflecting a broader trend toward interoperability. However, these efforts remain fragmented, as seen in the varying support for PPS and AVS across devices.

The market’s evolution also reveals a generational shift in charging expectations. Younger users, accustomed to seamless tech ecosystems, are less tolerant of fragmented standards. This demographic pressure, combined with the rising cost of proprietary accessories, creates a strong incentive for manufacturers to consolidate around USB PD. For example, Samsung’s recent adoption of USB PD for its Galaxy S26 Ultra lineup signals a strategic pivot toward universal compatibility. Yet, without coordinated efforts across the industry, these individual steps may not suffice to eliminate fragmentation.

What’s Next for USB Charging?

The future of USB charging hinges on collaboration. While USB PD has won the speed war, the interoperability battle is just beginning. Key steps include:

1. Unified Certification Programs: Establishing a global standard for PD compatibility, ensuring all devices and accessories adhere to the same specifications.
2. Consumer-Friendly Labeling: Clear, standardized markings on chargers and cables to indicate supported power levels and device compatibility.
3. Manufacturer Accountability: Encouraging brands to disclose real-world charging performance and avoid misleading peak specifications.

The industry’s next phase is not about chasing higher wattages but ensuring that existing capabilities are accessible to all users. As the USB-C ecosystem matures, the focus must shift from technical competition to user-centric simplicity. Only then can the promise of a universal charging standard be fully realized.