Brand N/A Model N/A Quantity 1 Color Red Material PBC Features Can be used to boost Li-ion battery or other digital device Specification Boost 1.25~5V input to 5v output. 1A max. output at 3.7~5V. Application DIY Li-ion battery boost module English Manual/Spec N/A Other Dimension: 15 x 28 x 10mm; Non-isolation DC-DC bost; input voltage: 1.25~5V (1~6v extreme value); output: 5.0v +-0.2v; output current: 1A (2.8V-3V input with 600mA output; 1A for 3.7-4.2V input); output power: 5w max.; converting rate: >90%; Test data (input voltage input current output current efficiency): 1.25V 477mA 5V 100mA 84%; 2.00V 560mA 5V 200mA 90% ; 3.30V 1.00A 5V 570mA 87%; 3.70V 1.00A 5V 640mA 87%; 4.20V 1.00A 5V 730mA 87%. Packing List 1 x Module