43.2V 21700 Lithium Battery Pack
In high-performance applications such as drones, underwater equipment, and electric surfboards —where power density and environmental adaptability are critical—a truly reliable and long-lasting lithium battery solution must deliver not only exceptional performance but also seamless compatibility with your equipment.
At CM Batteries, we provide end-to-end customization services, from cell selection and structural design to BMS configuration and enclosure customization, ensuring a perfectly tailored 43.2V 21700 battery system for professional applications.
Key Advantages of Custom 43.2V 21700 Battery Packs
Application-Specific Design: Supports extreme conditions, including -40°C operation, high discharge rate, shock resistance, and IP68 waterproofing.
High-Energy-Density Cells: Samsung 40T, Molicel P42A/P45B, or LG 21700 cells for maximum power & longevity.
Compliance & Safety: Meets UN38.3, CE, RoHS, and IEC standards (certification assistance available).
Smart BMS Integration: Real-time monitoring with overcharge/overcurrent/temperature protection.
Custom 43.2V 21700 Battery Pack Solutions
43.2V 4Ah Underwater Equipment Lithium Battery Pack
Configuration: 12S1P (12x INR21700-P42A cells)
Operating Temp: -20°C to 55°C
IP68 waterproof protection
43.2V 12Ah 21700 Lithium Battery for Drone
Made with INR21700-P42A cells
Connection by series and parallel
XT90 connector for discharge and XT60 connector for charge
43.2V 40Ah 21700 Battery for Electric Surfboard
Made with Samsung INR21700-40T cells
Heat radiation and IP68 rating
Customized waterproof housing and connector
Related Custom 21700 Lithium Battery Pack Solutions
More Technical Articles on Custom 21700 Li-ion Battery Pack
Custom 43.2V 21700 Li-ion Battery Pack FAQ
What customization options do you offer?
We tailor every aspect of your battery pack, including:
Cell selection (Samsung 40T, Molicel P42A/P45B, LG 21700, etc.)
Capacity & voltage (4Ah–40Ah+, 43.2V standard or adjusted configurations)
BMS features (Bluetooth monitoring, dual-ports, high/low-temperature cutoff)
Mechanical design (IP68 waterproofing, shockproof casing, custom connectors)
Can a 43.2V 21700 battery pack replace a 12S 18650 battery pack?
Absolutely. A 43.2V 21700 battery pack (12S) can directly replace a 12S 18650 battery pack in most applications. 21700 cells provide:
Higher capacity
Better discharge rates
Longer cycle life
Fewer Parallel (P) Cells Needed
What certifications do your batteries have?
Yes, we offer certifications like UL, CE, UN38.3, and others based on requirements.
How do you ensure quality?
Our quality process includes:
- 100% cell testing before assembly
- Full functional testing before shipment
- Cycle testing on random samples
- 1-2 year warranty (depending on configuration)
Can you use other cell models for battery pack design, or are you limited to 21700 cells?
No, we can design packs with various cell models. Learn more here.
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.
