Technical Specifications:
The document provides detailed specifications for a charger designed for Li-Ion batteries, model TS250912. It operates with an input voltage range of 90-264 VAC and a line frequency of 47-63Hz. The switch frequency is approximately 40kHz, and it features a leakage current from the battery of approximately 0. The operating temperature range is -25°C to +40°C, while the storage temperature range is -25°C to +85°C. The ripple is less than 100 mV p-p. The charger is protected against reversed polarity and is short circuit proof, with an insulation class of II and insulation voltage of 4000VAC/5640VDC between primary and secondary.

Standards and Safety:
The charger complies with electrical safety standards EN 60601-1, EN 60950, and EN 60335-2-29. It meets EMC standards for medical (EN 60601-1-2), emission (EN 61000-6-3), and immunity (EN 61000-6-1).

Design and Features:
The charger includes a standard EU, UK, AU, or US input terminal and output terminals with or without a plug. It has an IP code of 4X, dimensions of 75 × 32 × 50mm, and weighs 109g. It features a 3-step charge control with current detection as charge termination, universal input voltage, capability to charge 1-7 battery cells, and an LED indicator with two colors. Custom specifications are available upon request.

Charge Control:
The charge control is divided into three steps, with specific parameters for each number of cells (1 to 7). The maximum output power ranges from 4.2W to 10.5W, with efficiency up to 82% at 230V. Charge current and voltage are specified for each step, with charge termination and start conditions detailed.

Additional Information:
The charger is approved for medical standards EN 60601, and updates can be found on the manufacturer's website.