UltraFire® 18650 Rechargeable Battery 2200mAh

2200mAh | 3.7V | 4.4A
The UltraFire 18650 3.7V rechargeable battery delivers powerful, dependable energy for high-drain devices, ensuring long-lasting performance and consistent reliability.
Size: Ø18.3 × 66.5mm

SKU: 8663

$18.39
$19.99
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1-Year Warranty

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Reviews

Customer Reviews

Based on 11 reviews
45%
(5)
27%
(3)
0%
(0)
18%
(2)
9%
(1)
J
Jason Miller
Solid spares for camping

Picked these up as spares for a camping trip and they've been solid. Charged them before we left, used them all weekend, still going strong. I'll grab another set when I need more.

Hi there, thanks for sharing! Glad these batteries kept going strong throughout your camping trip. We appreciate you choosing UltraFire and look forward to helping when you need another set.

B
Brian Thompson
Exactly what I wanted

Exactly what I wanted. Popped them in, charged up fast, and my light is noticeably brighter than with the old ones I had. No fuss, just works.

M
Michael Carter
Hard to beat for the price

Been using these in my EDC flashlight for a couple weeks now and honestly, no complaints. They hold a charge well, fit right in, and haven't died on me mid-use. For the price, hard to beat.

D
David Wilson
Good overall, wish it came with a case

Good batteries overall. They last a decent while in my flashlight and recharge without any issues. Taking off one star just because I wish they came with a small carrying case. Otherwise totally fine for everyday use.

Specifications

Brand

UltraFire

Title

Battery Type

18650 Rechargeable Battery

Title

Material

Li-ion

Title

Capacity

2200mAh

Title

Voltage

3.7V

Title

Max Continuous Discharge

4.4A

Title

Energy

8.14 Wh

Title

Charging Time

5-7 hours

Title

Cycle Life

500+ full charges

Title

Size

Ø18.3 × 66.5mm

Title

Weight

46g

Title

Chargeable

Yes

Title

Protective Case

NO

Title

Certifications

CE, FCC, MSDS, UN38.8

Features

Rechargeable 18650 Li-ion batteries with 2200mAh capacity and up to 4.4A continuous discharge, designed for reliable everyday power. Supports 500+ charge cycles with CE, FCC, MSDS, and UN38.8 certifications for safety and quality. Available in both flattop and button-top versions to fit a wide range of flashlights and devices.

Choose UltraFire 18650 batteries for dependable performance and versatile compatibility.

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

UltraFire® 18650 Rechargeable Battery 2200mAh

$18.39
$19.99