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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 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. RoboticsBD
| General Specification | |
| 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 |
1 x 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board/BMS Board Standard
The latest price of 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board/BMS Board Standard in Bangladesh is BDT 125 You can buy the 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board/BMS Board Standard at best price from our RoboticsBD or visit RoboticsBD Office.
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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. |
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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-1718
Model: BT-168D Product Name: Digital Battery Tester Type: Pointer Voltage Measurement Rated Voltage: 12V Measurement Accuracy:0.1V
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-1073
3.7V 600mAh 25C Lipo battery Product Type: Lithium Polymer Battery Pack The LiPo battery has matched resistance. Good Temperature Control. Minimum weight in Class
Reference: RBD-0563
Overcharging and Over Discharging Protection Short circuit protection: Yes Applicable assembly: Nominal 4.5V Batteries / 3 strings. RoboticsBD
Reference: RBD-1921
4 Series 30A 18650 Lithium Battery Protection Board 14.8V 16V with Cable, Balance Board for Drill Motor Lipo Cell Module Comes with recovery function-AUTO Recovery Integrated 10 low load resistance MOS tube.
Reference: RBD-1371
Input: AC 100-240V/ 47-63HZ Output: DC 3.7V/ 500mA Termination voltage: 4.2V+-1%
Reference: RBD-1865
HW-633 control board Automatic power-off when full charged Intelligent, Power Saving, Safe Suitable for 12-24V Storage Battery Battery application: Lead-acid batteries, Solar cells, new energy batteries, Car battery, electric car battery, Lithium-ion battery, polymer battery Made of ABS plastic and metal, durable and tough Automatic power-off when full...
Reference: RBD-0763
Cell Quantity: 2 Battery type: AA Storage temperature: 25ºC Max Operate temperature: 80ºC
Reference: RBD-1258
Model No: XW Power Eagle Lipo 1000mAh 7.4V 2S 25C Lipo Battery (T Plug Connector) Weight: 76 gm. Voltage: 7.4V. Dimensions : 26x34x72 (mm ). Max Continuous Discharge : 25C(25A). Balance Plug: JST-XH. Max Burst Discharge: 90 C (50A). Discharge Plug: T-Plug.
Reference: RBD-2175
This little charger will do just that if you need to charge single-cell 3.7V LiPo batteries.
Reference: RBD-0919
Dimension: 25 x 19 x 10 (LxWxH)mm. Input interface: micro USB. 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-2192
Geepas AA 3200MAH Battery 1.2V Ni-MH Rechargeable Battery 1 pcs Geepas 1.2V AA 1000mAh Battery
Reference: RBD-1075
Microprocessor controlled Delta-peak sensitivity Individual cell balancing LiIon, LiPoly, and LiFe capable NiCd and NiMH capable Large range of charge currents Storage charge function Time limit function Input voltage monitoring (Protects car batteries in the field) You need at least a 12V 6A Power Adapter to Power it. You can purchase it separately. Link
Reference: RBD-1535
Multiple Outputs: 5V+12V+12V Constant DC output, long backup time up to 6 hours Intelligent circuit design with over-charging, over-discharging and short circuit protections Suitable for 95% DC/USB digital products, such as: modem, router, CCTV camera, mobile phone etc.
Reference: RBD-1895
Brand: RoboticsBD
Input interface: USB 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-2253
Doublepow AA 1200MAH Battery Single 1.2V Ni-MH Rechargeable Battery
Reference: RBD-1674
Xtar MC1 charger Output current :500-50mA Universal Charger for : Charge for :10440/ 14500/ 14650/ 16340/ 17500/ 17670/ 18350/ 18500/ 18650/ 18700/ 22650/ 25500/ 26650 3.6/3.7V rechargeable Li-ion battery With package box
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-1907
Doublepow AA 1200MAH Battery 2pcs/Set 1.2V Ni-MH Rechargeable Battery
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-1343
Compatible With: AA, AAA, 9V Battery red light show the charging situation 9V Battery Charger
Reference: RBD-1556
Model: XH-M240 Display accuracy: 0.1 Measurement accuracy: 1mAH Power supply: DC 5V-12V Standby current: 5-7mA
Reference: RBD-0764
Cell Quantity: 3 Battery type: AA Storage temperature: 25ºC Max Operate temperature: 80ºC
Reference: RBD-2255
The Doublepow Smart Battery Charger (DP-D03) is a 4 slot charger. It has an input of AC110-240V 50/60Hz. It has output of DC 1.2V 180mA D/C DC1.2V 150mA AA/AAA DC9V 25mA 9V, making it suitable for charging 1.2V AA/AAA/C/D/9V Ni-MH/Ni-CD rechargeable batteries.
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-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-1876
Input Voltage (V): 100 ~ 280 VAC @50 ~ 60Hz. Input current (mA): 100. Output Power: 12V 1.8. Input Plug: 2-Pin USA type. Output Plug: 5.5mm DC plug. Model: HS 121800
Reference: RBD-2108
Multiple Outputs: 5V+9V+12V Constant DC output, long backup time up to 6 hours Intelligent circuit design with over-charging, over-discharging and short circuit protections Suitable for 95% DC/USB digital products, such as: modem, router, CCTV camera, mobile phone etc.
Reference: RBD-1909
6v 2800mah AA NI-MH Battery Rechargeable Battery Pack JST Plug
Reference: RBD-1560
Support charging and discharging at the same time Large current Small size High efficiency Support short circuit protection
Reference: RBD-0563
Overcharging and Over Discharging Protection Short circuit protection: Yes Applicable assembly: Nominal 4.5V Batteries / 3 strings. RoboticsBD
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
Reference: 0828
Supported Motors: 10kg-cm servos (such as MG995, MG996) This product is made of high-quality materials and is durable. Various sensors can be installed to complete a variety of novel interactive works through the servo controller. It is convenient to install the camera, which can realize image monitoring and image recognition and tracking. Choose your...
Reference: RBD-1715
16 pins. Molded notch for proper orientation. Easy to insert and remove ICs.
Reference: RBD-0919
Dimension: 25 x 19 x 10 (LxWxH)mm. Input interface: micro USB. 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-1856
Dual channel stereo, high output power (3 w + 3 w power @ 5V and 4 ohms load).. Double panel wiring solves crosstalk. Super mini design allows it to be easily placed in a variety of digital products. 3W Output at 10% THD with a 4ΩLoad and 5V Power Supply. Filterless, Low Quiescent Current and Low EMI and Low Noise. Short Circuit Protection and Thermal...
Reference: RBD-0840
Dimension: 14.5×6 cm Copper Thickness 1-4 OZ Board Thickness 1.1 mm Board color: Brown
Reference: RBD-0291
Main chip: LM393, Electret condenser microphone Working voltage: DC 3.3-5V Induction distance is 0.5M Signal output Indication Single channel signal output The output effective signal is low level.
Reference: RBD-0919
Dimension: 25 x 19 x 10 (LxWxH)mm. Input interface: micro USB. 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-0730
The performance is much higher than LM2577. Non-isolated Boost converter. It has a non-synchronous rectifier. Low ultra wide input voltage 3 v ~ 32 v, the best is 5 ~ 32 v working voltage range; Low ultra wide output voltage 5 v ~ 35 v;
Reference: RBD-0837
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. RoboticsBD
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-0755
Size: 5mm Color: Green Head Shape: Round Lens Appearance: Transparent
Reference: RBD-0768
Size: 5mm Color: RED Head Shape: Round Lens Appearance: Transparent
Reference: RBD-0406
Input voltage: 4.5-35V, Output voltage: (3-35V) continuously adjustable (recommended load debugging). Minimum pressure: 1.5V Output current: rated current 2A, 3A maximum Output Power: 15W maximum. RoboticsBD
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-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-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-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-0837
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. RoboticsBD
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-0651
Made of hard leather. Excellent material, fine workmanship. It is an environmental 9V battery buckle. Wire Length: 5cm. Color: Black.
Reference: RBD-0732
Excellent material It is an environmental 9V battery buckle The Cable Length: 12cm Approx. Convenient for connecting a battery to your application. Save power and protect the environment Good electrical conductivity and comfortable sense of touch
