Key Features

Massive 4500mAh Capacity: Built for long-lasting, high-power performance.
60A Max Output: Easily supports devices requiring extreme amperage.
High-Stability Chemistry: Maintains safe, efficient performance under heavy load.
Long Service Life: Over 600 charge cycles with minimal performance drop.
Reliable 21700 Build: Larger cell design increases energy storage and output efficiency.

When your projects demand uncompromising power, the BAK 45D delivers. With exceptional output capability and an impressive 4500mAh capacity, this battery ensures that high-drain devices operate at peak performance. From e-bikes to power tools, the 45D excels in applications where both longevity and strength matter. Engineered by BAK—an industry leader in lithium-ion innovation—this cell is built to outperform similar 21700 batteries in its class.

Applications/Uses

Electric Mobility: Perfect for EV packs, e-bikes, and scooters requiring sustained power.
Heavy-Duty Tools: Ideal for high-demand cordless tools and industrial equipment.
Large Battery Packs: Commonly used in custom high-capacity lithium battery banks.
High-Drain Electronics: Suitable for demanding RC vehicles, drones, and field equipment.
Lighting Systems: Powers professional flashlights and tactical lighting at high output levels.

SPECIFICATIONS

Brand:	BAK
Model:	45D
Battery Type:	21700
Capacity:	4500mAh
Nominal Voltage:	3.6V
Full Charge Voltage:	4.2V
Discharge Cutoff Voltage:	2.5V
Continuous Discharge Rate:	60A (with 80°C cutoff)
Rechargeable:	Yes
Protected:	No, Unprotected
Cycle Life:	600+ cycles
Diameter:	21.3mm
Length:	70.5mm
Weight:	~70g

BAK 21700 Batteries

Price

Collections

BAK 21700 5000mAh 15A Battery (N21700CG)

BAK 45D 21700 4500mAh 60A Tabless Battery