When discussing vaping performance, many people focus on battery size or wattage numbers.However, the true foundation of consistent flavor is voltage control — and this is where SXmini devices powered by YiHi chips make a difference. Voltage control determines whether your device feels powerful at full battery but weak later — or smooth and consistent from the first puff to the last. 1. Battery Voltage and Puff Performance In every vape device, the battery voltage naturally drops as it discharges: • Full battery: approximately 4.2V• Mid battery: approximately 3.7V• Low battery: approximately 3.3V If the device does not regulate voltage properly, output power decreases as voltage drops. This is why many standard vape devices feel strong when fully charged but gradually become weaker during use. SXmini devices use advanced YiHi chip technology to manage this voltage change intelligently. 2. What Is DC-DC Voltage Regulation? DC-DC regulation converts one DC voltage level into another stable DC voltage. There are three primary types: • Buck (Step-Down): lowers voltage when battery voltage is higher than required• Boost (Step-Up): increases voltage when battery voltage is lower than required• Buck-Boost (Step-Up + Step-Down): adjusts voltage in both directions Buck-Boost is the most complete solution because it stabilizes output across the entire battery range. Most SXmini devices integrate true Buck-Boost DC-DC regulation developed by YiHi, ensuring stable output from full battery to low battery. 3. What Is PWM and Why Is It Different? PWM (Pulse Width Modulation) does not truly change voltage.Instead, it rapidly switches power on and off to simulate an average output. • Advantage:…

  At SXmini, we focus on one thing: making flavor clean, stable, and reliable.   Puremax 2 is designed for users who care about taste, control, and long-term performance, not just power numbers. It delivers consistent flavor while actively protecting the cartridge and coil from dry hits and burning.   CALIBRATED FOR EVERY PX CARTRIDGE Puremax 2 is specially tuned for PX cartridges in 0.4ohm, 0.6ohm, 0.8ohm, and 1.2ohm. When a cartridge is installed, the device automatically detects coil resistance, selects the correct power range, and keeps output inside a safe and optimal window. Each resistance works in its best power zone. This helps protect the coil and keeps flavor stable over time.   PURE TECHNOLOGY – ACTIVE DRY-BURN PROTECTION Puremax 2 uses YiHi PURE temperature control technology. The chipset checks coil temperature 200 times per second. If e-liquid becomes low or heating is abnormal, the device automatically reduces output before dry hits happen. This protection works before flavor is damaged, not after. Result: ·Clean taste no burnt hits longer cartridge life   CONSISTENT OUTPUT, EVEN WHEN BATTERY IS LOW Puremax 2 uses a buck-boost output system. This keeps power stable even when battery level drops. From full charge to low battery, the flavor remains smooth and consistent. The last puff feels like the first.   CLEAR COLOR SCREEN, ALL INFORMATION VISIBLE Puremax 2 features a 0.96-inch TFT color screen. It clearly displays power, battery level, coil resistance, and puff count. Ignition animations give instant feedback, so users always know device status. Custom wallpapers can be uploaded via SX-Link USB…