18650 Batteries

Buying 18650 Batteries in Australia

Magnum Sports stocks 11 rechargeable 18650 lithium-ion batteries from Nitecore, Hikmicro, Pard, ICU, NEBO and Oneleaf, priced from $29 to $89. They power many thermal scopes and monoculars, torches and headlamps, and are held at our Roseville Chase store in Sydney.

The range covers standard 2600mAh cells, high-capacity 4000mAh cells including the Nitecore NL1840AW all-weather battery, a 3100mAh high-drain Nitecore IMR18650, and Nitecore models with a USB-C charging port built into the cell. Brand-matched batteries from Hikmicro, Pard and Oneleaf suit those makers' thermal devices.

Prices18650 batteries from $29 (Hikmicro) to $89 (Nitecore IMR18650 high drain); most cells sit between $32 and $57.
Availability11 batteries listed across six brands as of October 2026: Nitecore (5), ICU (2), Hikmicro, Pard, NEBO and Oneleaf.
DealerMagnum Sports, 19 Babbage Road, Roseville Chase NSW — NSW Firearms Dealer Licence 413159984 — (02) 9882 2689

Not sure which cell fits your device? Check whether it needs a button-top or flat-top 18650, then call (02) 9882 2689 or bring the device into Roseville Chase and we will match it.

10 products

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Oneleaf 18650 Battery

Oneleaf

$35.00

Available to pre order

Hikmicro Rechargeable 18650 Battery

Nitecore NL1840AW All-Weather 18650 4000mAh Li-ion Battery

Nitecore

$49.00

Nitecore NL1826 18650 Li-ion Battery, 3.7V 2600mAh

Nitecore

$42.00

Nitecore NL1826R 18650 Li-ion Battery, USB-C Rechargeable, 3.7V 2600mAh

Nitecore

$39.00

Nitecore NL1836R 18650 USB-C Rechargeable Li-ion Battery

Nitecore

$57.00

Nitecore IMR18650 3100mAh 35A High Drain Battery

Nitecore

$89.00

ICU Li Battery 18650 3.6v 2.6Ah (Blue) Button Top

ICU

$32.00

ICU Li Battery 18650 3.6v 4Ah (Black) Button Top

ICU

$39.00

Rechargeable 18650 lithium-ion batteries for thermal scopes, monoculars, torches and headlamps, from Nitecore, Hikmicro, Pard, ICU, NEBO and Oneleaf.

Common questions

What is an 18650 battery?

An 18650 is a cylindrical rechargeable lithium-ion cell about 18 mm wide and 65 mm long. It is the standard cell in many thermal scopes and monoculars, high-output torches and headlamps. Where capacity is listed, the cells we stock range from 2600mAh to 4000mAh.

Which 18650 battery should I buy for my thermal scope?

Start with the battery made by your scope's manufacturer: we stock 18650 cells from Hikmicro ($29), Pard ($49) and Oneleaf ($35). For a higher-capacity alternative, the ICU 4Ah button-top ($39) and Nitecore NL1840AW 4000mAh ($49) are options; confirm the device takes a button-top cell before buying.

Are there 18650 batteries that charge by USB-C?

Yes. The Nitecore NL1826R ($39, 2600mAh) and NL1836R ($57) have a USB-C port built into the cell, so they can be charged without a separate charger.

How much does an 18650 battery cost?

At Magnum Sports 18650 batteries range from $29 to $89. Standard 2600mAh cells are $32 to $42, 4000mAh cells are $39 to $49, and the Nitecore IMR18650 3100mAh high-drain cell is $89.

Answers written by the licensed dealers at Magnum Sports, Roseville Chase NSW. Last reviewed October 2026. Firearms law differs by state; check with your state registry before you buy.