2005: Launched PK flashlight, laying groundwork for battery and charging expertise
2009: Developed WP6 (6-slot charger) for diving flashlights, pioneering three-stage charging technology (Patent No.: 201720828840.6) to solve overheating and incomplete charging issues, officially entering the charger market.
2011: WP2II - First charger with 0V activation + USB output, reviving over-discharged lithium-ion batteries.
2012: First charger with selectable charging current (0.5C) to extend battery lifespan.
2014: VP2 - Market's first charger compatible with all lithium-ion battery voltages.
2016: DRAGON VP4 Plus - First charger to precisely measure battery capacity & internal resistance.
2019: Integrated charger with charging, capacity calibration, storage (3A fast charge per slot, auto/manual current adjustment).
2020: BC4 - First universal charger for AA/AAA 1.5V lithium & 1.2V NiMH batteries.
2023: Pioneered CVSA (Curve-based Voltage Sensing) tech for more precise, safer NiMH battery charging.
2024: VX4 - First charger for 1.5V lithium batteries, supporting 4 battery types with 4 intelligent charging protocols.
March 2025: L4 Pro -- AA/AAA smart charger (universal brand compatibility) with NiMH battery shallow/deep restoration and simple operation.
July 2025: VX2 Pro -- Industry's first dual-slot fully independent control charger, retaining VX4's core functions.
September 2025: L8 BOX - Patented charging + storage all-in-one case with conical magnetic design, redefining charger aesthetics.