Premium 21700 Lithium-Ion Battery – High Capacity & Reliable Power
Engineered with top-tier lithium-ion technology, this 21700 battery delivers exceptional performance with a 5000mAh capacity (40T/50G model) or 4000mAh (50S model). Ideal for high-drain devices like vaping mods, flashlights, power tools, and electric vehicles.
Ultra-safe with stable 3.7V output, built-in protection against overcharge/overheat. Features precision welding and reinforced casing for durability. Bulk pricing available – wholesale discounts for global resellers.
Trusted OEM quality at unbeatable wholesale rates. Stock up for high-demand electronics and DIY projects. Fast shipping worldwide.


















Recent Purchase
bgq***
Nominal Voltage:3.6v/3.7v;Nominal Capacity:4000mah 40T;Battery Type:cylindrical;
$83.44
7 days ago
ecu***
Nominal Voltage:3.6v/3.7v;Nominal Capacity:4000mah 40T;Battery Type:cylindrical;
$35.76
16 hours ago
xbm***
Nominal Voltage:3.6v/3.7v;Nominal Capacity:5000mah 50G;Battery Type:cylindrical;
$116.08
4 days ago
gpn***
Nominal Voltage:3.6v/3.7v;Nominal Capacity:5000mah 50G;Battery Type:cylindrical;
$246.67
37 days ago
pix***
Nominal Voltage:3.6v/3.7v;Nominal Capacity:5000mah 50E;Battery Type:cylindrical;
$113.64
45 days ago
iew***
Nominal Voltage:3.6v/3.7v;Nominal Capacity:5000mah 50E;Battery Type:cylindrical;
$170.46
21 days ago
dhy***
Nominal Voltage:3.6v/3.7v;Nominal Capacity:5000mah 50S;Battery Type:cylindrical;
$111.92
49 days ago
dct***
Nominal Voltage:3.6v/3.7v;Nominal Capacity:5000mah 50S;Battery Type:cylindrical;
$125.91
15 days ago
View All
Customer Reviews

Good price Original 21700 5000mah battery 40T 50G 50S 21700 4000mah lithium ion battery 21700 3.7v rechargeable batteries
$7.54$9.47-20.38%
Nominal Voltage:
3.6v/3.7v
Nominal Capacity:
4000mah 40T
5000mah 50G
5000mah 50S
5000mah 50E
Battery Type:
cylindrical
Quantity:
Add to Cart
Wishlist
Features
See More