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Item #:
88405131
4PCS 4S 20A 14.8V Lithium for 18650 Battery BMS PCM Protection PCB Board Module 16.8V with Overcharge Over Discharge Short Circuit Protection
Item #:
88405131
XCD 51
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High-accuracy voltage detection circuit, over-current protection, and MOS transistor control for efficient battery management.
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Product Details
| Item Weight | 0.3 lbs (140 grams) |
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Product Description
4PCS 4S 20A 14.8V Lithium for 18650 Battery BMS PCM Protection PCB Board Module 16.8V with Overcharge Over Discharge Short Circuit Protection
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Customer Questions & Answers
-
Question:
What is the purpose of the BMS in the 4PCS 4S 20A 14.8V Lithium module?
Answer: The Battery Management System (BMS) in this module is designed to monitor the charging and discharging of the battery cells. It ensures balanced charging across the four cells, preventing overcharging and discharging, which can lead to reduced battery life or even hazardous conditions. By managing these critical aspects, the BMS enhances safety and prolongs the lifespan of your lithium batteries, making it ideal for applications like electric vehicles, drones, and power tools. -
Question:
How does the overcharge protection feature work?
Answer: Overcharge protection in the BMS is executed through sophisticated voltage monitoring. When any battery cell exceeds its specified voltage limit, the BMS automatically disconnects the charging circuit, preventing further current from exceeding safe levels. This feature is crucial for maintaining battery integrity and avoiding potential risks such as thermal runaway, making it indispensable for high-reliability applications like solar energy storage systems and electronic devices. -
Question:
What does the PCB protection module do?
Answer: The PCB protection module offers essential safeguards for lithium batteries by protecting them from faults such as overcurrent, short circuits, and temperature anomalies. By immediately reacting to faults, the BMS can prevent damage to the cells, ensuring safe operation. This makes the module suitable for applications where constant monitoring is critical, such as in robotics or consumer electronics. -
Question:
What types of batteries are compatible with this module?
Answer: This module is specifically designed for 18650 lithium-ion batteries, facilitating a configuration of 4 cells in series (4S). Each cell's voltage can collectively reach 14.8V when fully charged and 16.8V in a protected environment. This compatibility makes it ideal for various applications like power banks, electric bicycles, and scooters where 18650 cells are a standard choice. -
Question:
Can I use this BMS with 3.7V lithium-ion batteries?
Answer: No, this BMS is tailored for use with 14.8V (4S) lithium batteries, which utilize four 3.7V cells in series. Using it with batteries that do not match the specified voltage could lead to improper operation or damage. For 3.7V batteries, a different BMS suited for single-cell or 3S configurations would be more appropriate, ensuring standard operation and safety. -
Question:
What do the '20A' specifications imply for my usage?
Answer: '20A' indicates the maximum continuous current that the BMS can handle without failing. For projects requiring significant power, like high-drain devices or electric bikes, ensuring that your load does not exceed this limit is crucial. If you plan to use this BMS in your devices, verify that your battery’s discharge rate and overall design align with this 20A specification to maintain performance and safety. -
Question:
Is thermal management included in the module's features?
Answer: Yes, thermal management is a critical part of the BMS. This module is equipped with thermal sensors that monitor the battery's temperature, and if it rises above safe levels, the BMS intervenes by reducing or disconnecting the charge or discharge current. Effective thermal management is vital in preventing overheating, especially during high-load applications like electric vehicles or power tools. -
Question:
How do I connect this BMS to my battery pack?
Answer: Connecting the BMS to your battery pack requires a basic understanding of wiring. Each of the four cells needs to be connected to the BMS according to the provided schematic, ensuring positive and negative terminals are accurately aligned. Misconfiguration can lead to performance issues or damage. Properly connecting the BMS allows it to effectively manage each cell's voltage and current, essential for safe operation in applications like drone batteries or energy storage systems. -
Question:
What features enhance the safety of this BMS module?
Answer: This BMS offers multiple safety features, including overcharge, over-discharge, and short circuit protection. Each of these features works in tandem to prevent voltage spikes, excessive current draws, and potential hazardous situations. By integrating these protective measures, the module ensures that your battery systems operate reliably, making it an excellent choice for applications such as home energy storage or high-performance electronics. -
Question:
Where can I buy the 4PCS 4S 20A 14.8V Lithium BMS PCM Protection PCB Board?
Answer: You can buy the 4PCS 4S 20A 14.8V Lithium for 18650 Battery BMS PCM Protection PCB Board Module at Ubuy. Ubuy offers a diverse selection of electronic components, including this specific BMS module, making it easy to find what you need for your projects.
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Features & Benefits
- 4Pcs High-accuracy voltage detection circuit
- Built-in three-stage over-current detection circuit
- Over Charge Voltage: 4.25-4.35v¡À0.05v
- Over Discharge Voltage: 2.3-3.0V ¡À 0.05V
- Widespread application in various products
- Specific guidelines for battery discharge rates