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, solar, inverters & 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

Power Engineering Tools

Crimping, Opening & Extraction Tools, Cordless Soldering Irons.

Master Logo

Featured Products

Mobile Phone Batteries

Make sure the kids' phones have adequate battery life before school starts! Click the heading to read more

Slimline Cordless Iron

22W Slimline Lithium-Ion powered cordless rechargeable solderng irons now available!  Click the heading to read more

Victron BlueSmart Range

The BlueSmart range of SLA & Lithium battery chargers from Victron Energy is now available at MI!   Click the heading for more

Samsung Galaxy Tab 4 Battery

Now in stock - battery suitable for use with Samsung Galaxy Tab 4  Click the heading for more

Products by Brand


2017 Christmas Closure Notification


Advanced notice on the closure dates for the MI offices for the 2017 Christmas period

Read More

Works with Arlo


The Tenergy branded batteries and charger kits have arrived at MI. Check out these Arlo endosed products... Read More

e-Bike Batteries


With e-Bikes gaining in popularity, one of the MI engineers decided to fit one of our Mondia battery kits to his own Bike Read More

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