High-Voltage 21.6V 2.55Ah Rechargeable Li-ion Battery Pack BAKTH-18650-6S1P for Power Tools


Technical Specifications:

  • Chemistry: Li-ion

  • Nominal Voltage: 21.6V

  • Nominal Capacity: 2.55Ah

  • Nominal Energy: 55.08Wh

  • Max Charge Voltage: 25.2V
  • Discharge cut off voltage: 16.8V

  • Discharging temperature: 0~45℃
  • Dimension: about 20 x 56 x 136 mm

  • Weight: about 300g 

Product Overview
The BAKTH-18650-6S1P is a high‑performance lithium‑ion battery pack built on a proven 6S1P (6 series, 1 parallel) configuration using premium Grade‑A 18650 cells. It delivers a stable 21.6V nominal voltage (25.2V fully charged) and a reliable 2.55Ah (2550mAh) capacity – approximately 55Wh of energy. Designed for applications that require higher voltage with moderate capacity and lightweight construction, this pack is the ideal power source for power tools, medical devices, drones, RC models, and portable instruments.

 

Why Choose This Battery Pack?
✔ High Voltage – 21.6V meets professional demands
6S1P Balanced Design – perfect voltage and current performance
✔ Proven 18650 Cells – reliable, long cycle life
✔ Integrated BMS – safety and cell balancing
✔ Customizable – connectors, wiring, labels for OEM orders

Order Now and power your innovations with a trusted energy solution!

 

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.

  •  
  • Certificates:
  •  
  • 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!

Technical Specifications:

  • Chemistry: Li-ion

  • Nominal Voltage: 21.6V

  • Nominal Capacity: 2.55Ah

  • Nominal Energy: 55.08Wh

  • Max Charge Voltage: 25.2V
  • Discharge cut off voltage: 16.8V

  • Discharging temperature: 0~45℃
  • Dimension: about 20 x 56 x 136 mm

  • Weight: about 300g 

Product Overview
The BAKTH-18650-6S1P is a high‑performance lithium‑ion battery pack built on a proven 6S1P (6 series, 1 parallel) configuration using premium Grade‑A 18650 cells. It delivers a stable 21.6V nominal voltage (25.2V fully charged) and a reliable 2.55Ah (2550mAh) capacity – approximately 55Wh of energy. Designed for applications that require higher voltage with moderate capacity and lightweight construction, this pack is the ideal power source for power tools, medical devices, drones, RC models, and portable instruments.

 

Why Choose This Battery Pack?
✔ High Voltage – 21.6V meets professional demands
6S1P Balanced Design – perfect voltage and current performance
✔ Proven 18650 Cells – reliable, long cycle life
✔ Integrated BMS – safety and cell balancing
✔ Customizable – connectors, wiring, labels for OEM orders

Order Now and power your innovations with a trusted energy solution!

 

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.

  •  
  • Certificates:
  •  
  • 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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