How to use BC-4S15D : 2s/3s/4s LiPo battery charger/checkerIntroducing how to use BC-4S15D, a small palm-sized charger that can be used to charge batteries for various radio-controlled models such as FPV drones / Tiny whoops and electric model guns. For the basic knowledge of LiPo battery, see Drone Battery Knowledge: How to long-lasting and reviving . Also, for more information on micro drones, see Introduction to FPV drone for beginner: How to fly Tiny Whoop / Racing drone .
KNACRO BC-4S15D Battery Lithium Lipo Balance Charger With Voltage Display 1500mA
KNACRO 2017-08 USD23.50
Ready to charge, one step to finish charge process; ready to display, display the voltage at any time. High charge accuracy, ±10mV(max); Multi-protection, keep charging safe. Auto recover the over charging battery, save energy, balance process don't need discharge. Operating Voltage Range: 9V-16V DC; Operating Temperature: -20-45℃; Cells Type Supported: 2-4 cells Li-lon/Li-poly; Input Power Request: Recommended 30W. Max Charge Power: 25W; Charge Current: 1500mA; Charge Accuracy:±10mV; Balance Current: 1000mA; Display Accuracy: ±10mV.
MINGCHUAN Battery Balance Charger, Lipo Battery Charger, BC-4S15D
Excellent circuit design: Large range of charge currents Store function, allows safe storage current. Practical for variety of batteries: Suitable for charging LiPo, LiFe, NiMH and NiCd batteries. Multi-Function: Designed with fast charging and storage modes for Li-Po. Maximum Safety: Low Input Voltage setting,Capacity limit, Processing Time limit,Temperature Threshold,Delta-Peak Sensitivity.
What is BC-4S15DBC-4S15D is a very simple charger that can charge and check the voltage of 2s/3s/4s LiPo batteries.
Originally a Chinese product, similar products are available from multiple vendors. In addition, two types of 1.5A version and 3.0A version are sold depending on the charging current. The 3.0A version charges faster, but there is a risk of explosion or fire depending on the C value of the connected battery. Especially for beginners, we recommend the 1.5A version, which is easy to use.
Batteries supported by BC-4S15DThe following types of batteries can be charged.
|types||Number of cells / voltage|
|LiPo (Lithium polymer)||2-4 cells|
Three JST-XH type connectors for balance charging are lined up. They are for 2s, 3s and 4s respectively. However, only one battery can be charged at a time.
A connector for connecting an AC adapter.
Use as a voltage checker
Charge the battery
During charging, the screen will display "ALL" followed by the current total voltage. Then "b-1" is displayed, followed by the current cell 1 voltage, "b-2" is displayed, followed by the current cell 2 voltage, and so on.
Each voltage increases gradually.
The product description says, "When the battery is fully charged, it will automatically stop, display 'FUL' and sound an alarm. ", but it seems that it often does not stop automatically.