

BMS (Battery Management System) – a battery management system that is designed to monitor the status of batteries, control the process of charging/discharging the battery, etc. RoboticsBD
Two batteries (18650) can be connected simultaneously to the HX-2S-D20 charge-discharge controller module. The module has protection against short circuit, overcharge and over-discharge. One of the functions of the charge controller is to turn off the power supply for the batteries when the maximum capacity of at least one battery is reached. This BMS controller is designed for more than 30,000 hours of operation. The maximum allowable current is 20 A. RoboticsBD
B+ : Battery positive pole
B- : Battery negative pole
BM : Mid-point of a battery assembly
P- : Negative charge / discharge terminal
P+ :Positive charge/discharge terminal
If the maximum permissible value of the supply voltage is exceeded, the charge controller activates the “protection” mode. In order to restore the module, it is necessary to re-apply voltage to the input of the BMS board or wait a while until the charge controller automatically disables protection.
Power is supplied to the module from an external power source. The voltage range of the module is from 7.4 to 8.4 V. For charging, you can use a step-up voltage converter with a current limiter. Please note that this module is not a charger. Featured By RoboticsBD.
Product Images are shown for illustrative purposes only and may differ from the actual product.
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General Specification | |
Model | HX-2S-D20 |
Over Charge Voltage Range | 4.25-4.35 V + 0.05 V |
Over Voltage Range | 2.5-3.0 V + 0.05 V |
Max. Operating Current | 13 A |
Max. Limiting Current | 20 A |
Charging Voltage | 8.4-9 V |
Quiescent Current | Lower than 10 µA |
Internal Resistance | <300 Ohm |
Operating Temperature | -40°C to +50°C |
Length (mm) | 44.77 |
Width (mm) | 18.85 |
Height (mm) | 3.5 |
Weight (gm) | 4 |
Shipment Weight | 0.005 kg |
Shipment Dimensions | 4 × 4 × 1 cm |
Please allow 5% measuring deviation due to manual measurement.
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1 x 2S 20A 18650 Lithium Battery Protection Board.
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The latest price of 2S 20A BMS Charger 18650 Lithium Li-ion Battery Balance Protection Board in Bangladesh is BDT 350 You can buy the 2S 20A BMS Charger 18650 Lithium Li-ion Battery Balance Protection Board at best price from our RoboticsBD or visit RoboticsBD Office.
Please note that the product information provided on our website may not be entirely accurate as it is collected from various sources on the web. While we strive to provide the most up-to-date information possible, we cannot guarantee its accuracy. We recommend that you always read the product labels, warnings, and directions before using any product. |
Product Images are shown for illustrative purposes only and may differ from the actual product. |
Reference: RBD-0563
Overcharging and Over Discharging Protection Short circuit protection: Yes Applicable assembly: Nominal 4.5V Batteries / 3 strings. RoboticsBD
Reference: RBD-1019
Charging Voltage: 12.6V-13V Overcharge Voltage Range: 4.25V-4.35V ± 0.05V Overpressure Voltage Range: 2.3V-3.0V ± 0.05V Upper Limit Operating Current: 5A-6A
Reference: RBD-1419
Model: 6S 15A 18650 Lithium Battery Protection Board Balanced charge: None Short circuit protection: Yes
Reference: RBD-1420
Over Charge Voltage Range: 4.25-4.35 V + 0.05 V Over Voltage Range: 2.5-3.0 V + 0.05 V Max. Operating Current: 13 A Max. Limiting Current: 20 A Charging Voltage: 8.4-9 V
Reference: RBD-1421
3S 11.1V 12.6V 20A 18650 lithium battery protection board (comes with recovery function-AUTO Recovery). Application: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650.26650, a polymer lithium battery). Continuous discharge current (upper limit): 20A (if the cooling environment is not good, please reduce the load current use). Continuous...
Reference: RBD-1474
This Lithium ion battery protection PCB protect single Lithium ion batteries. 20A continous current. Suitable for electric drills,motors,or aircraft models which require heavy current load.
Reference: RBD-1536
Over Charge Voltage Range: 4.25-4.35 V + 0.05 V Over Voltage Range: 2.5-3.0 V + 0.05 V Max. Operating Current: 13 A Max. Limiting Current: 20 A Charging Voltage: 8.4-9 V
Reference: RBD-1687
Model No.: ISR18650-1300 Capacity (mAh): 750-1300 (Copy) Output Voltage: 3.7V High energy density High working voltage for single battery cells. It's a clone battery so the ampere couldn't be guaranteed.
Reference: RBD-2191
Sanford AA 3200MAH Battery 1.2V Ni-MH Rechargeable Battery 1 pcs Sanford 1.2V AA 3200mAh Battery
Reference: RBD-1585
Brand: SONY High capacity (Clone) Size:AA Capacity: 1200mAh Chemicals: NiCd/NiMh Battery Shape: Cylindrical Voltage(V):1.25 Life Cycles: 2100
Reference: RBD-0954
Tell you the real capacity of your battery! LCD display show all info you want Micro-USB powered, charge everywhere at your will Charge all popular Li-ion batteries Unique efficient charge method (TC-CC-CV) with 0.5Ax2.
Reference: RBD-1749
2 in 1 Type C USB Tester Color Screen LCD Digital Multimeter, Voltage Current Detector USB Cable Charger Indicator DC3.6-30V/0-5.1A
Reference: RBD-0955
Clearly see what’s going on with the batteries. Tachometer-style LCD display shows detailed charging status Powered by any 5V USB power Intelligently chooses charging currents from 0.1A to 1A Wide adaptability, adapts from 10440 to 32650, from Li-ion to Ni-MH Energy-saving LCD backlight, can be turned off at your will.
Reference: RBD-0652
Constant 9V Output till lasts Metal Jacket Body Good Built Quality and hence Leakproof Easy to install and Replace Corrosion free Connector Point for long-term use 0% Mercury and Cadmium. Environment-friendly OEM Compatible. RoboticsBD
Reference: RBD-1741
Cell Quantity: 1 Battery type: AA Storage temperature: 25ºC Max Operate temperature: 80ºC
Reference: RBD-1822
Input interface: Type C Current Protection: Yes Charging mode: Linear charging. Current: 1A adjustable. Charge precision: 1.5%. Input voltage: 4.5V-5.5V. Full charge voltage: 4.2V.
Reference: RBD-0925
Hold 4 standard 18650 batteries. Wire Length: 15 cm. Output: 14.8 V. Dimension (Appro.) : 80 x 76 x 18 mm. Weight: 28 gm. High-quality plastic material
Reference: RBD-1155
Built-in Lipo Charging Circuit Stabilized Voltage Output High Battery Capacity
Reference: RBD-1907
Doublepow AA 1200MAH Battery 2pcs/Set 1.2V Ni-MH Rechargeable Battery
Reference: RBD-2010
Capacity (mAh): 960-1500 Output Voltage: 3.7V High energy density High working voltage for single battery cells. Pollution-free Long cycle life It's a clone battery so the ampere couldn't be guaranteed.
Reference: RBD-1725
Power supply: DC 12V 1A Power range: 0~150.00W Capacity range: 0~999.999Ah Low voltage stop range: 0~150V
Reference: RBD-0988
Hold 3 standard 18650 batteries. Wire Length: 15 cm. Output: 11.1 V. Dimension (Appro.) : 76 x 60 x 18 mm. Weight: 18 gm. High-quality plastic material
Reference: RBD-0212
Input: 110v or 240v A/C (50/60Hz) Cell Count: 2~3s Battery Type: LiPoly Output Current: 3 x 800mA
Reference: RBD-1723
Model: XKT-412. Input Voltage: 12V. Output Voltage: 5V. Operating Current: 1.2-2 A. Receive Coil: 3mm, the receiver output 5V / 1A current Normal Use Distance: 2 ~ 10mm Operating Current: 1.2-2 A.
Reference: RBD-0930
Weight : 182 gm Voltage: 11.1V Capacity: 2200mAh Cell Type: Li-polymer Configurations: 3S Continuous Discharge Rate: 25C Max Burst Rate: 90C Discharge(Output) Lead: T Plug Connector Charging(Balancing) Lead: JST-XHR Wire Length: 100mm Operating Temperature Range: -20℃to 60℃ PVC color: Silver and Black
Reference: RBD-1909
6v 2800mah AA NI-MH Battery Rechargeable Battery Pack JST Plug
Reference: RBD-1922
The Successful start of the drill requires three 15C-20C power battery, or six 10C-15C power battery (ordinary 18650 cannot start the drill!!) Strictly according to map wiring 0V, 4.2V, 8.4V, 12.6V, 16.8V, do not deliberately short circuit.
Reference: RBD-1303
Cell Quantity: 6 Battery type: AA Storage temperature: 25ºC Max Operate temperature: 80ºC Dimensions: 92 x 57 x 15 mm
Reference: RBD-0929
Weight : 97 gm Voltage: 11.1V Capacity: 1500mAh Cell Type: Li-polymer Configurations: 3S Continuous Discharge Rate: 25C Max Burst Rate: 90C Discharge(Output) Lead: T Plug Connector Charging(Balancing) Lead: JST-XHR Wire Length: 100mm Operating Temperature Range: -20℃to 60℃ PVC color: Silver and Black
Reference: RBD-0651
Made of hard leather. Excellent material, fine workmanship. It is an environmental 9V battery buckle. Wire Length: 5cm. Color: Black. Battery not included. The device contains a battery that you may need to replace.
Reference: RBD-0494
Input Voltage (V): 100 ~ 280 VAC @50 ~ 60Hz. Input current (mA): 100. Output Power: 12V 2A. Input Plug: 2-Pin USA type. Output Plug: 5.5mm DC plug. RoboticsBD Model: STD-120200
Reference: RBD-1605
Hold 2 standard 18650 batteries. Wire Length: 15 cm. Output: 7.2v. Dimension (Appro.) : 76 x 40 x 20 mm Weight: 12gm High-quality plastic material
Reference: RBD-0836
Model: 14500 Type: Li-Ion Battery Mark Capacity: 850mah Nominal Voltage: 3.7v Color: Blue Weight: 17g Rechargeable Battery: Yes Note: It's a clone battery so the ampere couldn't be guaranteed.
Reference: RBD-1421
3S 11.1V 12.6V 20A 18650 lithium battery protection board (comes with recovery function-AUTO Recovery). Application: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650.26650, a polymer lithium battery). Continuous discharge current (upper limit): 20A (if the cooling environment is not good, please reduce the load current use). Continuous...
Reference: RBD-1087
Uninterruptible Power Supply Mini UPS Modem, Router, CCTV Camera and Lighting 6000mAh 22.2W
Reference: RBD-0388
Input voltage : 4.5V ~ 5.5V. Input Interface: Micro USB port. Charging method: linear charge. A full charge voltage: 4.2V. RoboticsBD Power: 4.2 w. Charging accuracy: 1.5%. Operating Temperature: -10 to +85ºC Charging indicator: Blue LED charging, Red LED full Check out New Product TP4056 Lithium Battery Charger Module With Protection Dual Functions
Reference: RBD-0963
Current and voltage display in turn, easy and comfortable to use. Small and portable, do not need other power supply. Measuring range: DC 3V – 9V / 0 – 3A (up to 5A ) Portable Device Interface: USB2.0, USB3.0 Product Weight: 0.025 kg Two output ports
Reference: RBD-1162
Net Content: 15g Paste Color: Brown Does not create High Smoke Does not create Foul/Bad Smell No Residual Waste High-Quality Soldering Additives & Activators for effective soldering Useful for general purpose soldering, electrical wires, components, and cables etc
Reference: RBD-1344
Supply voltage range: DC 7 V ~ 35 V Output voltage signal: 0 ~ 2.5 v, 3.3 v, 5 v, 10 v, 15 V. 4-20mA to 0-15V,0-5V,0-10V
Reference: RBD-0843
Capacitance: 100 uF Mounting: Through Hole Voltage: 25V
Reference: RBD-2241
Wearable e-textile technology. Designed with large sew tabs LED White Color
Reference: RBD-1771
It’s efficient up to 93% It can source a good amount of current The maximum output current: 2A Input voltage: 2V-24V DC The maximum output voltage: 5V-28V DC
Reference: RBD-0663
Power supply voltage(VCC): 2.0, 3, 5.5 V. Output high VOH: 0.8VCC V Output low VOL: 0.3VCC V Response time (touch mode) : 60 mS Response time (low power mode) : 220 mS Can replace the traditional touch of a button Four M2 screws positioning holes for easy installation RoboticsBD
Reference: RBD-1760
Model: 18650 radiating battery spacer Material: ABS/PC (Remarkable Flame Retardant Plastic) Dimension: 40 x 20 x 8 mm (LxWxH) (without lock slots). Application: Design for Radiating Complex Battery Packs. Safe and Stable, Perfect Build for eBike!
Reference: RBD-0905
Bluetooth protocol: Bluetooth Specification v2.0+EDR. Frequency: 2.4GHz ISM band. Modulation: GFSK(Gaussian Frequency Shift Keying). Emission power: =4dBm, Class 2. Sensitivity: =-84dBm at 0.1% BER. RoboticsBD