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

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Specifications:

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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 ?indicator; CR LED is charge ?indicator.??

Discharge current : 0-3.5A;

Discharge quiescent current : 200uA

Discharge conversion efficiency : 78%-91%??

Output current? ? : 0-2.1A(5V);??

Operating ambient temperature :? -40????? to +85?????

Storage temperature :? -65????? to +125??????

Size: 28 x 18 x 6.3mm

Weight : 2.7g

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Note:

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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.

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Applications:

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