43.2V 40Ah 21700 Electric Surfboard Battery Packs
CMB proudly designs and manufactures battery packs specially crafted and equipped for electric surfboards and eFoils. Learn more about our electric surfboard battery offerings below, and reach out to a CMB team member today to get started with your custom battery pack design.
43.2V 40Ah 21700 Electric Surfboard Battery Pack Design
Product Highlights
- Upgraded Technology: The 43.2V 40Ah 21700 battery pack for electric surfboards is the newest upgrade to the 43.2V 35Ah 18650 eFoil battery pack. Manufactured by CMB, it uses cutting edge Smart BMS and abstract heat technology to ensure battery reliability.
- Enhanced Capacity: The 21700 battery cells used in this pack offer a substantial increase in capacity, now providing an impressive 40Ah. This increased capacity translates to longer surf sessions, allowing enthusiasts to enjoy extended time on the water without worrying about power limitations.
- Optimized Design: CMB’s custom design expertise shines through in the 43.2V 40Ah 21700 battery pack. With a focus on waterproof solutions, our engineering team has created a battery pack tailored specifically for the demanding conditions of water sports. This ensures reliability and peace of mind even in challenging environments.
43.2V 40Ah 21700 Lithium Ion Battery for Electric Surfboard Parameter Specifications
| No. | Item | Specification | Note |
|---|---|---|---|
| 1 | Nominal Voltage | 43.2V | 3.6V/Cell |
| 2 | Nominal Capacity | 40Ah | @0.2C |
| 3 | Minimum Capacity | 39Ah | / |
| 4 | Initial Internal Impedance | ≤250mΩ | AC 1KHZ |
| 5 | Standard Charge Voltage | 50.4V | 4.2V/Cell |
| 6 | Standard Charge Current | 8A | @0.2C |
| 7 | Max. Charge Current | 15A | BMS Limit |
| 8 | Standard Discharge Current | 8A | @0.2C |
| 9 | Max. Discharge Current | 80A | / |
| 10 | Discharge Cut-off Voltage | 32.4V | 2.7V/Cell |
| 11 | Cycle Life | ≥500 cycles | Retention: ≥80% |
| 12 | Charge Temperature | 0°C~45°C | Standard Charge |
| 13 | Discharge Temperature | -20°C ~70°C | Standard Discharge |
| 14 | Storage Temperature | -20°C~ 45°C | ≤3 Months |
| 0°C ~ 25°C | ≤1 Year | ||
| 15 | Weight | About 12.4Kg | / |
| 16 | Special Request | Waterproof IP68 | / |
The Development Timeline Schedule of Custom Battery Pack for eFoil
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
-
43.2V 40Ah 21700 Lithium Ion Battery for Electric Surfboard Parameter Specifications
No. Item Specification Note 1 Nominal Voltage 43.2V 3.6V/Cell 2 Nominal Capacity 40Ah @0.2C 3 Minimum Capacity 39Ah / 4 Initial Internal Impedance ≤250mΩ AC 1KHZ 5 Standard Charge Voltage 50.4V 4.2V/Cell 6 Standard Charge Current 8A @0.2C 7 Max. Charge Current 15A BMS Limit 8 Standard Discharge Current 8A @0.2C 9 Max. Discharge Current 80A / 10 Discharge Cut-off Voltage 32.4V 2.7V/Cell 11 Cycle Life ≥500 cycles Retention: ≥80% 12 Charge Temperature 0°C~45°C Standard Charge 13 Discharge Temperature -20°C ~70°C Standard Discharge 14 Storage Temperature -20°C~ 45°C ≤3 Months 0°C ~ 25°C ≤1 Year 15 Weight About 12.4Kg / 16 Special Request Waterproof IP68 / - Development Timeline
-
The Development Timeline Schedule of Custom Battery Pack for eFoil
You can get in contact with our consultant to get the specific timeline for your custom battery pack solution.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.
43.2V 40Ah 21700 Electric Surfboard Battery Pack Applications
Technical Articles Related to 43.2V 40Ah 21700 Electric Surfboard Batteries
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A Comprehensive Knowledge About Best Battery for High Temperature43.2V 40Ah 21700 Battery Pack for Electric Surfboard FAQ
Do your 43.2V 40Ah 21700 eFoil battery packs use Smart BMS?
Our battery packs can be designed with Smart BMS or hardware BMS.
What kind of li-ion charger is compatible with 43.2V 40Ah 21700 eFoil battery packs?
For these battery packs, use the dedicated 50.4V 10A chargers provided by the manufacturer.
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.