It appears that your cart is currently empty
Feature:
4 string 16.8V 40A lithium battery protection board (comes with recovery function-AUTO Recovery)
Scope: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650,26650, polymer lithium battery)
Product Size: 45 * 55 * 3.4mm (Standard Edition / Enhanced), 46 * 60 * 3.4mm (balanced version)
Product weight: 9.3g (standard / enhanced version), 10.3g (balanced version)
Charging voltage: 16.8V - 18.1V
Continuous discharge current (upper limit): 40A (if the cooling environment is not good, please reduce the load current use)
Continuous charge current (upper limit): 20A
Equalization version: suitable for starting current below 80A, power 135W below the drill.
| Project | Min. | Typ. | Max. | Units |
| Consuming current | 12 | 18 | 24 | uA |
| Overcharged protection voltage | 4.2 | 4.25 | 4.3 | V |
| Balanced starting voltage | 4.17 | 4.2 | 4.23 | V |
| Equilibrium current | 95 | 100 | 105 | mA |
| Balanced heating power | 1.56 | 1.72 | 1.91 | W |
| Overcharge recovery voltage | 4.1 | 4.15 | 4.2 | V |
| Over-discharge protection voltage | 2.4 | 2.5 | 2.6 | V |
| Overvoltage protection after over-discharge protection | 2.8 | 3 | 3.2 | V |
| Overvoltage protection after over-discharge protection | 3.2 | 3.5 | 3.8 | V |
| Over-discharge recovery voltage | 2.9 | 3.2 | 3.3 | V |
| Conduction internal resistance | 2.5 | 3 | 3.5 | mΩ |
| Overcurrent protection current C | 70 | 80 | 90 | A |
| Overcurrent delay time | 100 | 150 | 200 | ms |
| Continuous operating current | 0 | 40 | 40 | A |
| Continuous output power | 0 | 672 | 672 | W |
| Ambient temperature | -40 | 25 | 85 | °C |
| Troubleshooting: | ||
| Fault phenomenon | Fault check and cause | The solution |
| Unable to charge | Measuring the voltage of 4 groups of batteries. when one of the battery voltages exceeds 4.25V, the protection board will activate overcharge protection. | Pair the battery pack well, do not mix the good battery and the bad battery. |
| Unable to discharge | Measuring the voltage of 4 groups of batteries. when one of the battery voltages is lower than 2.7V, the protection board will activate the over-discharge protection. | Pair the battery pack well, do not mix the good battery and the bad battery. |
| Charging/discharging failure | 0V, 4.2V, 8.4V, 12.6V, 16.8V miswired | Rewire or replace the new board (human failure, no warranty) |
| Overcharge/over-discharge failure | 0V, 4.2V, 8.4V, 12.6V, 16.8V miswired | Rewire or replace the new board (human failure, no warranty) |
| Discharge protection | Check that the battery pack has sufficient discharge capability and check that the load's starting current exceeds the over-current protection current of the protection board. | Replace the battery pack with a higher discharge capacity, or a protective plate with a larger current (super working range) |
| Component soldering | There is no connection between one of the components and the PCB pad. | Repair welding |
| Component welding | There is a short circuit between two or more pins of the component. | Remove the component and re-weld |
| Electrostatic breakdown A | In the unpowered state, measure the G, D, and S poles of the MOSFET. If the forward and reverse resistances of any two pins are 0Ω, it indicates that it has broken down. | Remove the replacement MOS tube |
| Electrostatic breakdown B | Remove the MOS tube and measure the resistance of the G and D, G and S poles of the MOS tube. If there is a resistance indicating that it has broken down, the resistance should be infinite. | Remove the replacement MOS tube |
Package includes:
1 x Battery Protection Board
1 x Battery Protection Board
Related product
HappyFish.co.za
100K-6GHz Full Band Low Noise Am...
Description:The HT004 Low Noise Amplifier is an elec...
R 862.24 R 568.16
Description:The HT004 Low Noise Amplifier is an electronic device that is primarily used to amplify signals and minimize the effects of noise. It operates in the frequency range...
HappyFish.co.za
WZ3605E CNC DC Buck-Boost Conver...
Feature:>>>Manual: Click here to open<&l...
R 739.35 R 561.04
Feature:>>>Manual: Click here to open<<< Model WZ3605E Input voltage 6.0~36.00V Output voltage 0.60~36.00V Output current 0~5.000A Output po...
HappyFish.co.za
LuckFox Pico Camera SC3336 3MP C...
Specifications:Sensor: SC3336Camera Type: ColorCMOS ...
R 462.32
Specifications:Sensor: SC3336Camera Type: ColorCMOS Size: 1/2.8'Pixel: 3MP (2304x1296)Shutter: Rolling shutterAperture: F2.0Distortion: <33%Focal Length: 3.95mmFocusing: Manu...
HappyFish.co.za
48V Condenser Microphone Recordi...
Parameters:Frequency response: 40hz-16khzSensitivity...
R 281.54 R 226.28
Parameters:Frequency response: 40hz-16khzSensitivity: -48dbOutput impedance: 250 OHMSound pressure level: 125dbSNR: 60dbPower supply: 15-48V phantom power supplyWorking current:...
HappyFish.co.za
M5Stack Cardputer v1.1 StampS3A ...
Description:Cardputer v1.1 is a high-performance car...
R 1,619.70
Description:Cardputer v1.1 is a high-performance card computer designed for engineers, offering a comprehensive upgrade over the original Cardputer. The new version features the...
HappyFish.co.za
Electromagnetic Swing Kit Leaf E...
Specifications:Product Name: Electromagnetic Swing K...
R 347.70
Specifications:Product Name: Electromagnetic Swing Kit (Leaf Edition)PCB Dimensions: 56mm x 83mmAssembled Height: 167mmOperating Voltage: DC 5VStandby Current: 13–15mA (Flowing ...