Proudly Australian Owned & Operated

Proudly Australian Owned & Operated

Now in its 3rd generation of ownership, Master Instruments continues to specialise in the manufacture, importation & distribution of batteries, battery packs & associated equipment such as battery chargers, analysers & power products, for both the consumer & industrial sectors.

Our Products

Our Products

From consumer focused AA batteries to replacement mobile or laptop batteries; or an in-house manufactured medical equipment battery to fully customised battery solutions for mining or defence projects, we.ll have a suitable solution for you.

Retail & Wholesale Support

Retail & Wholesale Support

With over 8000 stocked lines covering a multitude of applications and fitments, MI can support your retail or wholesale business by providing fast and efficient service and quality products. Our strength is our ability to efficiently cater to all size orders.

Custom & Industrial Battery Solutions

Custom & Industrial Battery Solutions

With in-house & offshore manufacturing capabilities specialising in all primary and rechargeable technologies, we have proven results in industries such as mining, medical, defence and more.

Batteries By Application Use

Explore by product category, application or intended use

Batteries By Chemistry

Find your battery by chemistry type both rechargeable & primary

Battery Chargers

Chargers for batteries and electronic devices

Battery Analysers

View our range of battery testers & analysers

Battery Assembly

Custom battery pack assembly provision

Industry Solutions

Explore our capabilities to supply your industry need

Power Products

For all your AC & DC power supplies, UPS, solar power distribution

Battery Assembly Parts

Battery assembly components, parts, leads & connectors

Test & Measurement

Digital test & measurement, telco equipment analogue meters & shunts

Torches & Flashlights

LED & standard torches, flashlight & exit light batteries

Battery Holders & Cases

We cater for a range of battery holders and cases

DC Power Engineering Tools

View our exciting range of Engineering Tools.

Featured Products

Focusable Torch by XTAR

Xtar have released a 500 lumen handheld torch with a focusable beamClick the heading to read more

AC Delco Charger

Safe & reliable 6/12V automotive smart battery charger with selectable output.  Click the heading to read more

New Two Way Batteries added

We have just added 24 new battery models to our two-way range! Check them out here...  Click the heading for more

4 Cell Lithium Ion Charger

Xtar's new 4 cell charger for batteries of 10440 - 26650 size. Perfect if you've got an Arlo system!  Click the heading for more


Enecharger Laptop Charger


It's finally here! The new smart / automatic 5 port, 80 watt laptop and device charger from Enecharger Read More

Rechargeable Solution for Arlo Cameras


Check out this great rechargeable solution for use with the ARLO home security cameras Read More

Lithium Ion Cells and batteries


The experts at Silicon Chip magazine have put together a fantastic article about Lithium Ion cells and batteries. Read More

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