Frequently Asked Questions
Find answers to common questions about battery testers, battery chargers, battery support units, repairs, accessories, calibration and product selection. Hot Wire supports workshops, dealerships, fleets, battery specialists and technical teams across Australia with professional battery testing, charging and monitoring equipment.
Choosing a Battery Tester or Charger
Which battery tester do I need?
The right battery tester depends on the type of vehicles or batteries you work with, how often you test, and whether you need printed reports, start-stop battery testing, fleet testing or workshop-level diagnostics. Hot Wire can help match the right tester to your workshop, dealership, fleet or battery service requirements.
What is the difference between a basic battery tester and a professional battery diagnostic tool?
A basic battery tester is usually designed for simple battery checks, while a professional diagnostic tool can provide more detailed information about battery condition, state of health, charging system performance and test history. Professional tools are generally better suited to workshops, dealerships, fleets and service teams that need accurate, repeatable results.
Do you sell battery testers for home mechanics?
Yes. While Hot Wire mainly supports workshops, dealerships, fleets and trade customers, some products are also suitable for home mechanics and smaller users who want a simple battery testing solution. For lower-cost testers and online-friendly products, our Battery Bench store may also be a suitable option.
Do you sell battery testers for workshops and dealerships?
Yes. Hot Wire supplies professional battery testers and diagnostic tools for automotive workshops, dealerships, service departments, battery retailers and fleet operators. We can help recommend a tester based on the vehicles you service, the battery types you test and the level of reporting required.
Can your battery testers check start-stop batteries?
Many professional battery testers can test common start-stop battery types such as AGM and EFB, depending on the model. Check the product specifications or contact Hot Wire if you are unsure which tester is suitable for your application.
Can your battery testers check lithium batteries?
Some battery testing and charging equipment is designed for lithium applications, but not every battery tester or charger is suitable for lithium batteries. Always check the product specifications before use, or contact Hot Wire for advice on the correct equipment.
What battery charger should I choose for a workshop?
The right workshop battery charger depends on the battery type, charging current required, whether the vehicle needs support during diagnostics or programming, and how the charger will be used day-to-day. Hot Wire supplies workshop chargers, battery support units and showroom support chargers for different professional applications
What is a battery support unit?
A battery support unit helps maintain stable voltage during diagnostic work, programming, showroom use or other workshop tasks where voltage stability is important. This is different from a basic charger, which is mainly designed to recharge a battery.
Repairs, Cables & Accessories
Can I get my battery tester repaired?
Yes. Hot Wire can assess and repair many professional battery testers, including Midtronics units. We can help with cable and clamp issues, printer faults, screen faults, power problems, intermittent test faults and general repair advice.
Do you repair Midtronics battery testers?
Yes. Hot Wire repairs and assesses Midtronics battery testers, including issues with cables, clamps, printers, screens, power faults and intermittent testing problems.
Do you repair battery chargers?
Yes. Hot Wire can assess battery chargers and support units for faults such as charging inconsistencies, cable damage, power issues or connection problems. In some cases, the issue may be repairable; in others, replacement may be the better option.
How long does a repair usually take?
Repair time depends on the fault, parts availability and the type of unit. Many repairs can be assessed quickly, but some jobs may take longer if parts are required or the fault is intermittent. Contact Hot Wire before sending a unit in so we can confirm the best process.
What should I include when sending a tester or charger for repair?
Please include your contact details, return address, a description of the fault, and any relevant accessories such as cables, clamps, printer modules or power supplies. If the fault is intermittent, include as much detail as possible about when it occurs.
My tester says "Check Connection." What should I do?
First check that the cable connections are firmly attached and that the clamps are clean, secure and not damaged. Worn clamps, damaged leads or connector issues can affect test results. If the issue continues, Hot Wire can assess the unit and advise whether replacement leads or repair may be required.
My tester is not printing. What should I check?
Check that the correct thermal printer paper is installed and that it is loaded in the correct direction. Also check the printer roller and cover for damage or misalignment. If the issue continues, the printer module or related parts may need assessment.
My tester will not power on. Can it be repaired?
In many cases, a tester that will not power on should be assessed before being written off. The issue may be related to internal batteries, cables, connectors, accessories or the unit itself. Hot Wire can inspect the tester and advise whether repair or replacement is the best option.
Do I need to send the cables and clamps with my tester?
Yes, where possible. Cables and clamps are often the cause of connection issues, failed tests or inconsistent results. Sending the unit with its leads and accessories helps us test the equipment properly.
Do you sell replacement cables, clamps and accessories?
Yes. Hot Wire supplies replacement cables, clamps, printer rolls and accessories for compatible battery testers, chargers and diagnostic equipment. Contact us if you are unsure which part suits your unit.
Calibration, Training & Support
Do battery testers need calibration?
Some professional battery testers, analysers and diagnostic tools may require periodic calibration, checking or servicing depending on the model, application and customer requirements. If you are unsure, contact Hot Wire with the model number and we can advise.
Can you remind us when a tester is due for service or calibration?
Hot Wire may be able to help customers keep track of service or calibration timing, especially for professional workshop or fleet equipment. Contact us to discuss what is practical for your equipment and service requirements.
Can you provide training on how to use a battery tester?
Yes. Hot Wire can provide on-site or remote product support and may be able to arrange training or guidance for workshops, dealerships and service teams. Training can help technicians use the equipment correctly, understand test results and avoid common testing mistakes.
Do you provide onsite training?
Onsite training may be available for workshops, dealerships, fleets or larger customers depending on location, equipment and requirements. Contact Hot Wire to discuss your training needs.
Orders, Brands & Applications
Do you supply Australia-wide?
Yes. Hot Wire supplies battery testing, charging and monitoring equipment to customers across Australia, including workshops, dealerships, fleets, battery specialists, telecommunications and stationary power customers.
Which brands does Hot Wire supply?
Hot Wire works with leading brands including Midtronics, DEFA, PulseTech, TopDon, Franklin Grid, Rotronics and Traction Chargers.
Can you help me choose the right product?
Yes. If you are unsure which tester, charger, support unit or accessory you need, contact Hot Wire with details about your application, vehicle types, battery types and how the equipment will be used.
Do you supply equipment for EV and hybrid vehicles?
Yes. Hot Wire supplies selected electric vehicle and high-voltage tools, including equipment for EV battery support, inspection and workshop applications. Contact us to confirm the right product for your use case.
Do you supply equipment for telecommunications and stationary power?
Yes. Hot Wire supplies battery testing, monitoring and charging solutions for stationary power applications including telecommunications, UPS, backup power, infrastructure and critical battery systems.
Do you supply equipment for fleets and heavy vehicles?
Yes. Hot Wire supplies battery testers, chargers and support equipment for fleets, heavy transport, commercial vehicles and workshop environments.
Can I buy online?
Some products are available to purchase online through the Hot Wire website. For specialist equipment, repairs, service support or product recommendations, please contact us so we can confirm the best solution.
What information should I provide when making an enquiry?
To help us recommend the right product, include the type of vehicles or batteries you work with, the battery voltage and chemistry if known, how often the equipment will be used, whether reports are required, and any current problems you are trying to solve.