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 Category

Explore our vast product range by product category

Batteries By Chemistry

Find your product by product chemistry

Chargers - All Types

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 engineering capabilities to meet your desired outcomes

Power Products

For all your power supplies and related products

Assembly Parts

The place for all your battery assembly parts

Test & Measurement

Check out our massive range of specialised test equipment

Torch & Lighting

For all your torch and lighting related products

Products by brand

Search our massive range by product brand name

Battery Knowledge

Click here for the Technical information section

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Featured Products


Have you seen our new range of Chassis mountable SLA chargers? Click Here


The perfect kit for any home - Battery charger, AA, AAA, C & D size solutions included Click Here


Raised button rechargeable battery for solar garden lights Click Here


USB powered 1-2 cell LiIon smrt battery charger with LCD display.

Click Here


Lithium Transport Update


Please be aware that we can no longer ship Lithium Metal batteries via air freight.

Read More

West Mountain Radio


The West Mountain Radio range of battery analysers and power equipment has been added to MI's every expanding product offering... Read More

Ansmann Battery Chargers


Ansmann's innovative battery chargers and testers have arrived and are packed full of features! Read More