Round 1S 3.7V 5A Lithium Battery BMS with Full Protection for DIY Project Smart Device


 

Type of Protective Board
1S lithium battery protection board
Battery Type
Li-ion
Compatible Interface
I2C
Over charge detection voltage(Cell)
4.280V±0.030V
Over Discharge Detection Voltage(Cell)
2.800V±0.050V
Over Current Discharge 10A-20A
Over Current Charge 10A-20A
Discharging Temperature 0~50 ℃
Charging Temperature 0~60 ℃
Max. Discharge Current 5A
Max. charge Current
5A
Dimensions
Φ18.3*0.6mm
Design Certification Requirements Conform to UL2054、IEC62133、KC、PSE

High-Discharge, Controlled-Charge Power Management for 1S Battery Systems

The BAKTH-ITL0010030165-01 is a precision-engineered 1-series (1S) Battery Management System (BMS) designed specifically for 3.7V lithium-ion and lithium-polymer battery packs. Featuring an ultra-thin circular form factor (Φ18.3mm × 0.6mm) and symmetrical 5A maximum continuous charge/discharge current, this protection board delivers robust power management in an exceptionally compact package. Its unique circular design and minimal thickness make it the ideal solution for space-constrained applications such as smart wearables, compact IoT devices, and miniaturized electronics where every millimeter counts.

This BMS integrates comprehensive protection features with ultra-low power consumption, ensuring optimal battery safety, longevity, and performance in the most demanding compact device designs.

 

Key Features & Benefits:

  • Comprehensive Protection:

    • Over-charge protection

    • Over-discharge protection 

    • Over-current protection

    • Short-circuit and temperature protection

  • Precision Balancing: Equipped with passive balancing functionality

  • Compact Design: Space-optimized layout for easy integration into various battery packs

Power your high-performance applications with confidence. Contact us for volume pricing and detailed technical data sheets!

About US:

Shenzhen BAKTH Technology Co., Ltd. was established in 2002. For 21 years, it has been dedicated to battery pack assembly and PCM/BMS design and production. It has a 5,000-square-meter self-owned factory equipped with automated production lines and SMT assembly lines.



FAQ:
1. What kind of certificate your battery pack owned?
Re: ISO9001, ISO14001, UL, BIS, KC, USTC, CE, CB, our battery pack have reliable quality assurance.
2. Do you have MOQ?
Re: No limitation, we will check the best price for you based on your order quantity. We warmly welcome sample order to test our quality before bulk order.
3. What 's the warranty? How can we guarantee quality?
Re: Normally will be 12 months, for some special products can be further negotiated accordingly. A complete production process to ensure the quality before shipment.
4. What 's the lead time?
Re: Standard products: sample order will be 3~4 weeks based on the battery cell in stock, 5~8 weeks for bulk order according to different models and quantity.
5. Can we have our own Logo on the battery pack? Can you accept customized battery?
Re: Yes, of course. BAKTH Technology has professional R&D team which could provide you the most suitable solution according to your requirements. Customized battery requirements are warmly welcomed!

 

Type of Protective Board
1S lithium battery protection board
Battery Type
Li-ion
Compatible Interface
I2C
Over charge detection voltage(Cell)
4.280V±0.030V
Over Discharge Detection Voltage(Cell)
2.800V±0.050V
Over Current Discharge 10A-20A
Over Current Charge 10A-20A
Discharging Temperature 0~50 ℃
Charging Temperature 0~60 ℃
Max. Discharge Current 5A
Max. charge Current
5A
Dimensions
Φ18.3*0.6mm
Design Certification Requirements Conform to UL2054、IEC62133、KC、PSE

High-Discharge, Controlled-Charge Power Management for 1S Battery Systems

The BAKTH-ITL0010030165-01 is a precision-engineered 1-series (1S) Battery Management System (BMS) designed specifically for 3.7V lithium-ion and lithium-polymer battery packs. Featuring an ultra-thin circular form factor (Φ18.3mm × 0.6mm) and symmetrical 5A maximum continuous charge/discharge current, this protection board delivers robust power management in an exceptionally compact package. Its unique circular design and minimal thickness make it the ideal solution for space-constrained applications such as smart wearables, compact IoT devices, and miniaturized electronics where every millimeter counts.

This BMS integrates comprehensive protection features with ultra-low power consumption, ensuring optimal battery safety, longevity, and performance in the most demanding compact device designs.

 

Key Features & Benefits:

  • Comprehensive Protection:

    • Over-charge protection

    • Over-discharge protection 

    • Over-current protection

    • Short-circuit and temperature protection

  • Precision Balancing: Equipped with passive balancing functionality

  • Compact Design: Space-optimized layout for easy integration into various battery packs

Power your high-performance applications with confidence. Contact us for volume pricing and detailed technical data sheets!

About US:

Shenzhen BAKTH Technology Co., Ltd. was established in 2002. For 21 years, it has been dedicated to battery pack assembly and PCM/BMS design and production. It has a 5,000-square-meter self-owned factory equipped with automated production lines and SMT assembly lines.



FAQ:
1. What kind of certificate your battery pack owned?
Re: ISO9001, ISO14001, UL, BIS, KC, USTC, CE, CB, our battery pack have reliable quality assurance.
2. Do you have MOQ?
Re: No limitation, we will check the best price for you based on your order quantity. We warmly welcome sample order to test our quality before bulk order.
3. What 's the warranty? How can we guarantee quality?
Re: Normally will be 12 months, for some special products can be further negotiated accordingly. A complete production process to ensure the quality before shipment.
4. What 's the lead time?
Re: Standard products: sample order will be 3~4 weeks based on the battery cell in stock, 5~8 weeks for bulk order according to different models and quantity.
5. Can we have our own Logo on the battery pack? Can you accept customized battery?
Re: Yes, of course. BAKTH Technology has professional R&D team which could provide you the most suitable solution according to your requirements. Customized battery requirements are warmly welcomed!

Detailed Product Description

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