5V 2.1A Output UPS Mobile Power DIY Charger Board Step Up DC to DC Converter Module for 3.7V 18650 L

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Charge voltage : DC 5V ( 4.6V-6.5V ) Charging current : 0-1A Full charge voltage : 4.2V±2%. Led indicator : OK LED is fully charged OR battery failure status indicator; CR LED is charge status indicator. Discharge current : 0-3.5A; Discharge quiescent current : 200uA Discharge conversion efficiency : 78%-91% Output current : 0-2.1A(5V); Operating ambient temperature : -40a to +85a Storage temperature : -65a to +125a Size: 28 x 18 x 6.3mm Weight : 2.7g Note:
1. This module without lithium battery over-discharge protection. 2. In order to achieve more than 5W, it is recommended to use two or more batteries in parallel. Applications:
Battery powered equipment Lithium Battery 18650 14500 Mobile phone diy Portable charger diy UPS power supply equipment diy Solar charging MP3/MP4 player Audio equipment Video equipment Portable Devices Bluetooth Wifi Applications MCU development board
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Package Included:
1 x 5V 2.1A Output UPS Mobile Power DIY Charger Board Step Up Module