18650 1800mAh 3.7V Rechargeable Batteries (2/4-Pack) - UltraFire
18650 1800mAh 3.7V Rechargeable Batteries (2/4-Pack) - UltraFire
18650 1800mAh 3.7V Rechargeable Batteries (2/4-Pack) - UltraFire
18650 1800mAh 3.7V Rechargeable Batteries (2/4-Pack) - UltraFire
18650 1800mAh 3.7V Rechargeable Batteries (2/4-Pack) - UltraFire
18650 1800mAh 3.7V Rechargeable Batteries (2/4-Pack) - UltraFire
1-Year_Free_Warranty - UltraFire
1-Year_Free_Warranty - UltraFire

UltraFire® 18650 Rechargeable Battery 1800mAh

1800mAh | 3.7V | 6.66 Wh

The UltraFire 18650 rechargeable battery provides reliable, high-drain power for flashlights and electronics, delivering consistent performance and long-lasting use.

Size: 66mm×10×10mm

SKU: 9362

$16.99
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Free Shipping 

Easy Returns

1-Year Warranty
Included

Features

High-Performance Li-ion Power
The UltraFire 18650 rechargeable batteries deliver 1800mAh capacity with a 3A max continuous discharge rate, providing stable, long-lasting power for flashlights, headlamps, and other high-drain devices.

 

Reliable Energy for Demanding Gear
With 6.66Wh of energy and up to 500+ recharge cycles, these cells are built to keep your equipment running through repeated use.

 

Compact & Lightweight
Slim design and lightweight build make these batteries easy to carry as spares for outdoor adventures, work gear, or emergency kits.

 

Certified Quality
Tested and verified with CE, FCC, MSDS, and UN38.8 certifications, ensuring consistent and safe performance.

Use Cases

DIY Powerwall Cell Banks

Cordless Power Tool Battery Replacement

Power Tool Battery Rebuilding

High-Performance LED Flashlights

EDC (Everyday Carry) Tactical Flashlights

E-Bike Battery Pack Building

PEVs (Personal Electric Vehicles) Power

Custom Electric Skateboard (esk8) Packs

Solar Energy Storage Systems

Off-Grid Solar Battery Banks

Portable Power Stations

Custom Lithium-Ion Battery Packs

Emergency Survival Gear Power

RC (Radio Control) Transmitters and Vehicles

Robotics and DIY Electronics Power

Arduino and Microcontroller Battery Shields

Ham Radio Portable Power

Solar Garden Light Upgrades

  • Specifications

  • reviews

Battery Type

18650 Rechargeable Li-ion
Title

Voltage

3.7 V
Title

Max Continuous Discharge

3A
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Capacity

1800mAh
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Energy

6.66 Wh
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Cycle Life

500+ full charges
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Charging Port

Charger Dock
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Operating Temp

-20°C to 60°C (-4°F to 140°F)
Title

Weight

44g
Title

Size

66mm×10×10mm
Title

Protective Case

No
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Certifications

CE, FCC, MSDS, UN38.8

Customer Reviews

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18650 1800mAh 3.7V Rechargeable Batteries (2/4-Pack) - UltraFire
18650 1800mAh 3.7V Rechargeable Batteries (2/4-Pack) - UltraFire
18650 1800mAh 3.7V Rechargeable Batteries (2/4-Pack) - UltraFire
1-Year_Free_Warranty - UltraFire

UltraFire® 18650 Rechargeable Battery 1800mAh

$16.99