1S 18650 Li-ion Lithium Battery BMS Charger Protection Board for 3.7V Battery.

  • Circuit for high accuracy voltage detection;
  • Using a high-voltage device’s charging port;
  • The three-stage internal overcurrent detecting circuit (load short circuit, overcurrent 1, overcurrent 2);
  • The MOS transistor can be controlled by the battery’s charge and discharge

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  • Pick up from the IBOTS Store


  • Delivery Charges: Tamil Nadu

₹75 for parcels below 1 Kg and ₹100 for parcels weighing between 1 Kg to 2 Kg.

2-3 Days


  • Delivery Charges: Other South India

₹125 for parcels below 1 Kg and ₹175 for parcels weighing between 1 Kg to 2 Kg.

2-3 Days


  • Delivery Charges: North India

₹250 for parcels below 1 Kg and ₹325 for parcels weighing between 1 Kg to 2 Kg.

2-3 Days


  • Courier delivery

Our courier will deliver to the specified address

2-3 Days

Rs. 99

  • Warranty 1 year
  • Free Returns Policy

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1. Order the Product and Specify the Delivery Method

2. You Will Receive an Order Confirmation Message

3. Wait for Your Order to Arrive

4. Pick up Your Order at The Checkout Area


A BMS (Battery Management System) for 18650 Li-ion batteries is essential for ensuring safe charging, discharging, and overall longevity of the battery pack. Here’s a breakdown of what each component does:

  1. Protection Circuit: This circuit protects the battery from overcharging, over-discharging, and overcurrent situations. It helps to prevent damage to the battery and can also enhance safety.
  2. Balancing Circuit: In multi-cell battery packs, this circuit ensures that each cell is charged and discharged evenly, preventing any single cell from becoming overcharged or over-discharged compared to others.
  3. Charging Circuit: This part of the BMS manages the charging process, controlling the charging current and voltage to ensure safe and efficient charging of the battery pack.
  4. Communication Interface (optional): Some advanced BMSs may include a communication interface (such as UART or SMBus) for monitoring the battery status, temperature, and other parameters.

When selecting a BMS for your application, make sure it matches the specifications of your battery pack (such as voltage, current ratings, and number of cells). It’s also essential to consider any additional features you might need, such as communication capabilities or specific protection mechanisms.

  1. Short circuit protection
  2. Overcharge protection
  3. Over-discharge protection
  4. Over-current protection
Pins description:

P-: negative of input or output power
P+: positive of input or output power
B-: negative of the battery
B+: positive of the battery

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