The 1 A LITHIUM BATTERY CHARGING BOARD (2 pcs) is a complete constant-current/constant-voltage linear charger for single cell lithium-ion batteries.

Specifications

• input voltage: 4.5 to 5.5 VDC (by on-board USB connector)
• charging current: 1 A adjustable
• charge accuracy: 1.5 %
• full charge voltage: 4.2 V
• charge indicator: green = fully charged, red = charging
• working temperature: -10°C to +80°C
• weight: 10 g
• dimensions : 25 x 19 x 10 mm
• User manual