3pcs 3V/3.7V To 5V 1A Lithium Battery Step Up Module Board Mini Mobile Power Boost Charger Module With Undervoltage Indi

Features 1 Using high quality chips and expanding MOS tubes 2 The output current is expanded to 1A and the maximum output is 1 5A The 2A Schottky diode is used to recharge the balance 3 With the new scheme design the circuit design does not require electrolytic capacitors and tantalum capacitors the electrolytic capacitors have a short life and the tantalum capacitors are in danger of explosion 3 ceramic capacitors MCC used in high end circuits 4 The same load indicator and undervoltage indication when the battery voltage is less than 2 7V the indicator will go out under load when the battery voltage is greater than 2 7V with load the indicator light is on when there is no load the indicator light is micro bright 5 Ultra small size 14 1 18 8 5 5 mm 6 The circuit conversion efficiency is high the efficiency is higher than 90 and the efficiency of the single cell lithium battery is also less than 80 7 Input low power reverse connection protection If your battery has 2A protection board the protection board will protect when you input the positive and negative poles of the power supply Note that when there is no protection board or the input current is greater than 2A the input reverse connection protection Will fail will cause the module to be damaged remember 8 Ultra low quiescent current new version quiescent current will be less than 100 microamps No connection is required to connect to the battery Specifications Input voltage 1 5VOut