Output Current:Max 5A (over 3A to enhance heat dissipation)
Conversion efficiency:95% (the highest)
Output Ripple:50mV (max) 20M Bandwidth
Operating Temperature:-40℃ to +85℃
Module Name:Current and voltage table
Refresh rate:About 200ms time
Display:Dual 4bits 0.28" digital tube
Operating Current:Less than 15mA
Storage Temperature:-10℃ to +65℃
Input impedance:50 milliohms
Rechargeable lithium-ion battery
When the lithium-ion battery voltage is relatively low, if the direct use of constant voltage charging, the voltage difference due to the larger, leading the charge current is too large, resulting in damage to the battery, so when you want to start using the constant battery current charging, when the charge to a certain extent automatically switches back when the constant voltage charging.
Module above indicated IN-(input negative), IN+(positive input), OUT-(negative output), OUT+(positive output) must be connected to the right, otherwise may cause damage to the module.
1. Tested by ICStation's Outstanding Partner DadHav:
While Charging, the Indicator Blue light is ON, Red light is OFF.
While Full Charged, the indicator Red light is ON, Blue light is OFF.
Learn More Details in the Video:
2. Reviewed by ICStation's Partner Ryan Bates:
3. Tested by Outstanding Partner Паяльник TV:
Learn More Details in the Video: (The language in the video isRussian)
By An***ey Rating: 
Date Added: 2017-07-07 21:21:56
Nice Buck Converter, meter is amazingly accurate for this price point.
By Jo***la Rating: 
Date Added: 2015-09-07 09:19:32
This is a great little converter that is very accurate. I charge my project battery with it then simply turn it around and run my project with the proper voltage required and set the current limiting for protection. See my in depth description and operation of the device here:
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