LITHIUM BATTERY USB CHARGER

The battery has a capacity of 350mAh and outputs at 3.3V±0.5V. It weighs 17.2g and is compatible with cartridges of 1.2Ω resistance or higher. Activation is via a button that needs to be pressed five times to power on/off. The LED indicator light is white and shows the charging status (steady on when charging, off when fully charged, and flashes three times when unplugged).

Safety features include low-power protection (button press when voltage < 3.2V, flashes 10 times when low), overtime protection (shuts off after 12 seconds of continuous use, flashes 10 times before re-use), and guidelines for long-term storage (-5°C to +35°C, 45-75% RH, should be charged every 180 days).