UltraFire® 10440 Battery (Unprotected)

Name: UltraFire® 10440 Battery (Unprotected)
Brand: UltraFire
SKU: 8286
Price: 15.99 USD
Availability: InStock
Rating: 5.0 (3 reviews)

350mAh | 3.6V | Unprotected
The UltraFire 10440 350mAh battery delivers compact, reliable 3.6V power for small flashlights and electronic devices, with no protection circuit for a slimmer, more compact form factor.
Size: 10.2mm x 43.9mm

$15.99

SALE % OFF

Free Shipping

Easy Returns

1-Year Warranty

Included

2 PCS

Features

330–350mAh capacity for extended runtime in compact devices
3.6V nominal voltage, standard for 10440 Li-ion cells
Unprotected (no PCB) design for a slim, low-profile fit
Rated up to 1A maximum discharge current
Rechargeable up to 500 cycles
Compact 10.2mm x 43.9mm size at just 8.7g

Use Cases

Small LED flashlights and penlights requiring a slim battery diameter
Laser pointers
Small electronic gadgets and devices needing 3.6V Li-ion power
Devices with their own built-in battery protection circuitry (since the cell itself is unprotected)

Specifications

Capacity

330–350mAh

Title

Nominal Voltage

3.6V

Title

Charge Cutoff Voltage

4.20V

Title

Discharge Cutoff Voltage

2.75V

Title

Max Discharge Current

Title

Dimensions

Ø10.2mm x 43.9mm

Title

Weight

8.7 ± 0.5g

Title

Charge Rate

0.2C

Title

Discharge Rate

0.5C

Title

Cycle Life

≥500 cycles

Title

Protection

None (bare cell)

Title

Certifications

CE, FCC, MSDS, UN38.8

Reviews

Reliable Power for Gadgets

These batteries are a game-changer for my gadgets. The charge-discharge cycle is impressive, and they recharge quickly. Definitely worth the investment if you need reliable power sources.

Great Value with Protection

Great value for the price. The protection board is a nice feature, giving me peace of mind against overcharging. They fit perfectly in my flashlight and provide consistent power.

Fantastic Battery Life!

"I've been using these UltraFire batteries for a few weeks now, and they are fantastic! They hold a charge really well and seem to last longer than other brands I've tried. Perfect for my high-drain devices."