18V 8Ah 21700 Power Tool Battery Pack
CMB proudly designs 21700 battery packs for power tools. Learn more about 21700 power tool battery offerings and reach out to a CMB team member to get started with a custom 21700 battery pack design.
18V 8Ah 21700 Power Tool Battery Pack Design
Product Highlights
- High Discharge Rate: The 18V 8Ah 21700 battery pack for power tool with 40A continuous discharge current and 80A peak discharge current.
- Enhanced Capacity: The 21700 cells used in this battery pack offer substantially increased capacity instead of the 18650 cells.The increased capacity with lighter weight and compact dimension.
- Wide Temperature Operation: Our 18V 21700 power tool battery supports a wide temperature range: charging: -20°C~60°C and discharging: -40°C~60°C.
18V 8Ah 21700 Li ion Battery Pack For Power Tool Specifications
| No. | Item | Specification | Note |
|---|---|---|---|
| 1 | Nominal Voltage | 18V | 3.6V/Cell |
| 2 | Nominal Capacity | 8.4Ah | @0.2C |
| 3 | Minimum Capacity | 8Ah | / |
| 4 | Initial Internal Impedance | ≤250mΩ | AC 1KHZ |
| 5 | Standard Charge Voltage | 2.1V | 4.2V/Cell |
| 6 | Standard Charge Current | 1.6A | @0.2C |
| 7 | Standard Discharge Current | 40A | @0.2C |
| 8 | Max. Discharge Current | 80A | / |
| 9 | Discharge Cut-off Voltage | 12.5V | 2.5V/Cell |
| 10 | Cycle Life | ≥500 cycles | Retention: ≥80% |
| 11 | Charge Temperature | -20°C~60°C | Standard Charge |
| 12 | Discharge Temperature | -40°C~60°C | Standard Discharge |
| 13 | Storage Temperature | -20°C~ 45°C | ≤3 Months |
| 0°C ~ 25°C | ≤1 Year | ||
| 14 | Weight | About 0.9Kg | / |
The Development Timeline Schedule of Custom Battery Pack for Power Tool
Preliminary Design
After receiving your initial questionnaire, we’ll create a custom design for your battery. Timeframe: 2 days.
3D Drawing
Next, we’ll provide you with a detailed CAD drawing of your custom battery. Timeframe: 2 days.
Approval of Specifications
We’ll share your battery pack specifications for your approval. Timeframe: 2 days.
Estimate
Next, we’ll create a pricing estimate for you to sign off on. Timeframe: 1 day.
Housing
If your battery pack requires custom housing, we’ll require some additional time to accommodate this request. Timeframe: 8-9 weeks.
BMS Development
We’ll craft a custom battery management system (BMS) for your unique battery to ensure safe and effective performance. Timeframe: 7-10 days for standard BMS, 25-30 days for Smart BMS.
Sample Creation
Next up, we’ll create a sample battery pack for you to sign off on before production. Timeframe: 5 days.
Sample Shipment
Once your sample is ready, we’ll ship it straight to you for approval. Timeframe: 4-7 days.
Certification
We can also assist with obtaining UL certification for your custom battery pack. Timeframe: 2-3 weeks.
- Specifications
18V 8Ah 21700 Li ion Battery Pack For Power Tool Specifications
No. Item Specification Note 1 Nominal Voltage 18V 3.6V/Cell 2 Nominal Capacity 8.4Ah @0.2C 3 Minimum Capacity 8Ah / 4 Initial Internal Impedance ≤250mΩ AC 1KHZ 5 Standard Charge Voltage 2.1V 4.2V/Cell 6 Standard Charge Current 1.6A @0.2C 7 Standard Discharge Current 40A @0.2C 8 Max. Discharge Current 80A / 9 Discharge Cut-off Voltage 12.5V 2.5V/Cell 10 Cycle Life ≥500 cycles Retention: ≥80% 11 Charge Temperature -20°C~60°C Standard Charge 12 Discharge Temperature -40°C~60°C Standard Discharge 13 Storage Temperature -20°C~ 45°C ≤3 Months 0°C ~ 25°C ≤1 Year 14 Weight About 0.9Kg / - Development Timeline
The Development Timeline Schedule of Custom Battery Pack for Power Tool
CMB proudly provides battery pack OEM service for our power tool customers. Let’s start by contacting a CMB member to get your unique 21700 battery pack design.Preliminary Design
After receiving your initial questionnaire, we’ll create a custom design for your battery. Timeframe: 2 days.
3D Drawing
Next, we’ll provide you with a detailed CAD drawing of your custom battery. Timeframe: 2 days.
Approval of Specifications
We’ll share your battery pack specifications for your approval. Timeframe: 2 days.
Estimate
Next, we’ll create a pricing estimate for you to sign off on. Timeframe: 1 day.
Housing
If your battery pack requires custom housing, we’ll require some additional time to accommodate this request. Timeframe: 8-9 weeks.
BMS Development
We’ll craft a custom battery management system (BMS) for your unique battery to ensure safe and effective performance. Timeframe: 7-10 days for standard BMS, 25-30 days for Smart BMS.
Sample Creation
Next up, we’ll create a sample battery pack for you to sign off on before production. Timeframe: 5 days.
Sample Shipment
Once your sample is ready, we’ll ship it straight to you for approval. Timeframe: 4-7 days.
Certification
We can also assist with obtaining UL certification for your custom battery pack. Timeframe: 2-3 weeks.
21700 Battery Pack Applications
21700 VS 18650 Batteries for Real-world Applications
The Expanding Applications of 21700 Battery Packs
The Lithium Battery Calculator Guidance
18650 Rechargeable Battery Pack: Design, Manufacturing18V 8Ah 21700 Power Tool Batteries FAQs
What cell brands does 18V 8Ah 21700 battries use?
CMB use Molicell 21700 cells to assembly 18V 8Ah power tool batteries.But we also select the suitable 21700 cell brand and model to meet your specific needs.
Can CMB upgrade 18V 8Ah 21700 batteries?
Of course,our engineering team can support you to upgrade BMS solutions with the smart BMS to improve the performance.
Tailored Customization
Our design team can create custom battery designs for just about any device or machine.
Timely Delivery
Our efficient production and distribution process gets your product delivered in a timely manner.
Quality Guarantee
We stand by our products and guarantee you’ll be happy with your purchase.