Features: Long lasting Power: The LK72 battery pack features a 3500mAh high capacity battery, providing extended printing time for mobile offices needs. Easy to use For TR150 portable printers, it delivers up to 330 pages per charging, ideal for frequent printing tasks. for easy travel, this compact and lightweight battery fits seamlessly into portable printers. perfect for business trips and on the go printing without adding bulk. Fast Charging & Durability: Charges in just 2 hours 20mins via adapter (5hrs via USB C). Built with premium cells for stable performances and long term reliability, supporting repeated charging cycles. User Friendly Design: Tool less installation allows quick attachment/detachment from printers. The efficient 3500mAh capacity keeps you productive during outdoor work, business trips, or mobile printing. Specifications: Component: battery high-efficiency battery cell to ensuring durability, safety and stability. Model: LK72 battery pack Size: about 19.6x5.5cm/7.72x2.16in for TR150 printers Suitable for multiple models of portable printers, with strong compatibility. Capacity 3500mAh,supporting fast charging function. Suitable for outdoor offices, business trips, mobile printing and other application Package Includes: 1PC LK72 3500mAh portable printer battery note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution