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5 PCS LANTIAN 4 In 1 2.1A 4.2V Charge Discharger DC-DC Boost Converter 3.7V to 5V UPS RC PDB Board - 14.00 €

5 PCS LANTIAN 4 In 1 2.1A 4.2V Charge Discharger DC-DC Boost Converter 3.7V to 5V UPS RC PDB Board
Seller: Banggood,
Ship from: CN Warehouse, Usually dispatched in 1-3 work days.

FREE SHIPPING: 10-35 days. (DHL faster please check price/quantity first)
Free shipping aviable, Registered postage from 25 €

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5 PCS LANTIAN 4 In 1 2.1A 4.2V Charge Discharger DC-DC Boost Converter 3.7V to 5V UPS PDB Board

BS301CV is a multifunctional 3.7V/4.2V Mobile Power Diy module,3 in 1 Function: charge,discharge and battery protection.
It is very suitable for DIY mobile power.
Specification:
Brand name: LANTIAN
Item model: BS301CV
Charge voltage : DC 4.65V-5.5V
Charging current : 0-2.1A
Charge quiescent current : 100uA
Full charge voltage : 4.2V+-1%.
Discharge current : 0-2.4A;
Discharge quiescent current : 50uA
Discharge conversion efficiency : maximum 96%
Output voltage : 5V
Output current : 0-2.1A;
Operating ambient temperature : -20° to +85°
Size : 25.2 x 16 x 4mm
Weight : 2g

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)
Button mode
The button duration is longer than 50ms, but less than 2s, which is a short press action. Short press will turn on the battery indicator and boost output.
The two consecutive short presses within 1 s will turn off the boost output and power display.
Pin description:
1 VIN : Charging port +
2 GND : Charging port -
3 GND : Battery port -
4 BAT : 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,
Package Included:
5 x BS301CV 5V/2.1A Mobile Power Diy Module









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