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This is 3s 12v 25a 18650 Lithium Battery Protection Board 11.1v 12.6v High Current With Balanced Circuit Over Charge Over-discharge Over Current and Short Circuit Protection Function. Board Charging and Discharging Are the Same Port, the Board Includes the Balanced Circuit.When the Charge Balance, the Board Will Be a Bit Warm, Even After Disconnecting the Charger, Some Are Still in the Balance, Will Continue to Warm for a While Until Below the Equilibrium Break Threshold.The Protection Board Cannot Be Used for Iron Lithium Polymer Battery (for Other Batteries, No Matter What Material, as Long as the Overvoltage and Put Voltage Can Be Used for Cutting), Electric Finish Machinery, Electric Bicycle Batteries, Car, and Motorcycle Starter Battery Protection.Applicable to the Following Products (Within Rated Power):Electric Drill, 775 Motors (6a-10a), Small Power Inverter, Small Power Vacuum Massager Battery, Led Lamp, 12v Standby Power Electronic Products, 12v120w Car Washing Pump, Battery, Solar Street Lamp Monitoring Standby Power Supply, and Other Products.Rated Current Can’t Over 25a, It Can’t Exceed 50a Per 0.5 Seconds.
Specifications :.Overcharge Voltage Range: 4.25-4.35v + 0.05v..Overdischarge Voltage Range: 2.3-2.7v + 0.05v..Operating Current: 0 – 25a..Operating Temperature: -40 – +50℃..Instantaneous Current: 35 – 40a..Storage Condition: -40 – +80℃..Quiescent Current: Less Than 30ua..Balance Current: About 40 – 50ma..Effective Life: More Than 30000 Hours..Internal Resistance: Less Than 100m Ohm..Short-circuit Protection: Protection, Delayed Self Recovery.
15 Days WarrantyThis Item is Covered With a Standard Warranty of 15 Days From the Time of Delivery Against Manufacturing Defects Only. This Warranty is Given for the Benefit of Robu Customers From Any Kind of Manufacturing Defects.  Reimbursement or Replacement Will Be Done Against Manufacturing Defects.
What Voids Warranty:If the Product is Subject to Misuse, Tampering, Static Discharge, Accident, Water or Fire Damage, Use of Chemicals & Soldered or Altered in Any Way.

Product Specification Product Description

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.

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.

The HX-2S-D20 BMS module has 5 pins:

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.

Features:

1. Small size designed for a four-cell battery pack.
2. Simple and convenient circuit for easy connections
3. Over-charge/Over-discharge Protection.

Package Includes:

1 x 2S 20A 18650 Lithium Battery Protection Board

Specifications:

Product Specification Product Description

Battery protection board, as the name suggests battery protection board is mainly rechargeable (Refers to the lithium battery) and protects the integrated circuit board. As the lithium battery, its material determines itself cannot be overcharge, over-discharge, short circuit, ultra-high temperature charge, etc. So lithium battery lithium components will always follow A protective plate with a sampling resistor, and a current fuse.

Providing all the above features this 3S BMS board can combine 3 x 18650 battery to form a battery pack to provide up to 15V DC output at 20A current which can be used for heavy applications.

 

Features:

1. Overcharging and Over Discharging Protection
2. Short circuit protection: Yes
3. Applicable assembly: Nominal 4.5V Batteries / 3 strings.

Specifications: