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5pcs 4 In 1 2.1a 4.2v Charge Discharger Dc-dc Boost Converter 3.7v To 5v

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Description
Description:

Charge voltage : DC 4.5V-5.2V(If the power supply is 5.2V-5.5V, please parallel diodes (eg SS34 SMB))
Charging current : 0-2.1A
Charge quiescent current : 100uA
Full charge voltage : 4.2V+-1%.
Discharge current : 0-3.5A;
Discharge quiescent current : 50uA
Discharge conversion efficiency : maximum 96%
Output voltage : 5V
Output current : 0-2.1A;
Operating ambient temperature : -20° to +85°
Size : 26.7 x 18.1 x 5.7mm
Weight : 1.9g

Comes with battery protection, do not need battery protection board
(if your battery comes with a protective board, it does not matter)
Overcurrent protection(OCP)
Overvoltage protection(OVP)
Short circuit protection(SCP)
Over temperature protection(OTP)

Pin description:
1 VIN : Charging port +
2 GND : Charging port -
3 BAT : Battery port +
4 GND : Battery port -
5 GND : Output port -
6 VOUT: Output port +
7 KEY : Output trigger port(Low pulse trigger)

1 In discharge mode(In the charging mode,the KEY function is invalid),
the KEY Trigger once,turn on the output;Continuous trigger twice: turn off the output.
2 When the load access, it will automatically turn on the output.
But if the load is less than 50MA, the output will be turned off after 30 seconds
3 While charging, while discharge, it is allowed

NOTE:

If the output load current is less than 50MA, turn off the output after 30 seconds.
If the output load current is greater than 50MA,continuous turn on the output
This module is not suitable for uninterruptible power supply(ups),If you need the UPS module,
Click here to buy

Packing list:5 PCS DD06CVSA 5V/2.1A Mobile Power Diy Module
Estimated delivery time:About 10 business days.We will use standard shipment for the orders. Normally it may need about 10 days, but sometimes please note: Delivery times are as provided by our carriers and are estimates only. Delays may occur during peak periods, and due to factors outside the carriers control.

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Location : International
Member Since : May 2026
View Store : YP Select

Posted: 24 Jul 2026     Page Views: 29     Listing #2147483647

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