48V 21700 Lithium Battery Pack

When it comes to powering multiple motor types, meeting space constraints, or supporting high-current discharge, a custom-built 48V 21700 battery pack is the best option. CM Batteries designs and manufactures battery packs for high-performance electric systems that require extended range, increased capacity, and enhanced safety – with over 100 successful custom projects completed.

Why Choose Our High-Power 48V 21700 Battery Packs?

Premium Cell Options: Built with high-density 21700 lithium-ion batteries from Samsung, LG, and others.

Flexible discharge currents are available in 20A, 30A, 40A, and 50A continuous output variants.

A smart battery management system that protects against overcharge, overdischarge, short-circuiting, temperature regulation and bluetooth function.

Custom Fit and Structure Matching: Designed to fit perfectly in electric bikes mopeds, and hidden frame compartments.

3D structure design support available. Optional IP67/IP68 waterproof, shockproof, and dustproof housing for demanding environments.

Fully compliant with UN38.3, CE, RoHS, and IEC standards. Certification support available for your specific market needs.

Custom 48V 21700 Battery Pack Solutions

48V 20Ah 21700 Integrated Battery for Ebike

Made with Samsung INR21700-50E cells

Waterproof function

50% charge in about 2.5 hours with a 4A charger

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13S6P 48V 30Ah 21700 Scooter Battery

Energy Capacity: 1440Wh

Configuration: 13S6P (78x 21700 cells)

30A continuous with overcharge/discharge/short-circuit protection

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What customization options do you offer?

We tailor every aspect of your battery pack, including:

Cell selection (Samsung , Molicel, LG 21700, etc.)

Capacity & voltage (10Ah–60Ah+, 48V standard or adjusted configurations)

BMS features (Bluetooth monitoring, dual-ports, high/low-temperature cutoff)

Mechanical design (IP68 waterproofing, shockproof casing, custom connectors)

Can a 48V 21700 battery pack replace a 13S/14S 18650 battery pack?

Absolutely. A 48V 21700 battery pack can replace a 13S or 14S 18650 battery pack, depending on your system’s voltage requirements.

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)

What industries or applications are your 48V 21700 packs used in?

These packs are commonly used in electric bikes, scooters, mopeds, AGVs, robotics, and portable power systems—especially where higher capacity and durability are needed.