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The Major Tech MT247 is a rechargeable battery internal resistance tester designed for professional electricians. This versatile device measures the internal resistance, voltage, and temperature of lead-acid batteries, gel batteries, lithium batteries, and more.
Utilizing the AC injection method provides accurate measurements unaffected by contact resistance. The MT247 features a large capacity lithium battery for extended use, USB interface for computer linking, and Bluetooth function for mobile connectivity.
With preset PASS, WARNING, and FAIL judgement thresholds, data storage, alarm functions, and automatic shutdown, the MT247 ensures reliable performance and ease of use. Compact and portable, it is an essential tool for battery production, installation, and maintenance.
Q: What types of batteries can the Major Tech MT247 test?
A: It can test lead-acid batteries, gel batteries, lithium batteries, and other rechargeable batteries.
Q: How does the MT247 measure battery resistance?
A: It uses the AC injection method for accurate measurement of internal resistance.
Q: Can the MT247 connect to a computer or mobile phone?
A: It features a USB interface for computer linking and a Bluetooth function for mobile phones.
Q: Does the MT247 provide judgement thresholds for battery health?
A: Yes, it includes preset PASS, WARNING, and FAIL judgement thresholds for easy assessment of battery health.
(MT247)
100-Day Fuss-Free Returns
We want you to love what you buy—but if you change your mind, that’s okay too. That’s why Sparky Direct offers a 100-day money-back guarantee.
If your item isn’t in its original condition, please contact us before returning it—we might save you time and money.
All products come with a manufacturer’s or supplier’s warranty
Damaged or Faulty Goods
If your order arrives damaged or is faulty, let us know within 24 hours.
Contact us via our chat to arrange the return.
Exclusions
We can’t accept returns for:
How to Request a Return
Warranty starts from Invoice Date
Domestic Use: 2 Year
Commercial Use: 2 Year
Warranty Method: Return to Sparky Direct
All Major Tech Meters sold through Sparky Direct are covered by the manufacturer’s warranty. If you believe your meter is faulty or defective, you may request an assessment under this warranty policy.
To initiate a warranty claim:
Return to Sparky Direct
Ship the meter back to Sparky Direct along with:
Please ensure the unit is securely packaged to prevent damage in transit.
Forwarded for Assessment
Upon receiving your meter, we will forward it to Major Tech’s authorised service centre for inspection, testing, and calibration.
Major Tech’s service lab will assess the returned unit to determine:
As Major Tech’s service labs are independent providers, Sparky Direct cannot govern or guarantee turnaround times or any costs incurred for repairs outside of warranty coverage.
| Specification | Range | Resolution | Accuracy |
|---|---|---|---|
| Resistance | 3mΩ | 1uΩ | ±(1% fs. ± 20) |
| 30mΩ | 10uΩ | ±(0.5% fs. ± 15) | |
| 300mΩ | 100uΩ | ||
| 3Ω | 1mΩ | ||
| DC Voltage | 7V | 1mV | ±(0.2% fs. ±10) |
| 70V | 10mV | ±(0.2% fs. ±10) | |
| Temperature | -10°C to 60°C | ±(1.0%) | |
| Internal Resistance | 1KHz (AC 4-terminal test method, open circuit terminal voltage 3V max) | ||
| Measuring current | 2.0mA to 200mA (different measuring currents in different ranges) | ||
| Temperature sensor | NTC temperature sensor (10KΩ at 26°C) | ||
| A/D Conversion Method | Successive approximation type | ||
| LCD Update Frequency | 5 times/second | ||
| Response Time | 200ms | ||
| Measuring Time | About 2 seconds | ||
| Hold & Store | Manual retention & storage, automatic retention and storage | ||
| Measurement Judgement | Pre-set PASS, WARNING, FAIL judgment thresholds | ||
| Batteries | 3.7V Lithium Rechargeable Batteries | ||
| Dimensions | 190 x 121 x 51mm | ||
| Weight | 480g | ||
These specifications and characteristics outline physical, mechanical, electrical details.
| Brand | Major Tech |
| SKU | MT247 |
| Barcode # | 6008229041280 |
| Package Weight | 2.200kg |
| Package Width | 0.380m |
| Package Height | 0.330m |
| Package Length | 0.150m |
| TYPE | VALUE |
|---|---|
| Type | Battery Resistance Tester |
| Brand | Major Tech |
| Colour | Blue, Grey |
| DC Voltage | 7V - 70V |
| Response Time | 200ms |
| Included | Carry Case, Test Leads, USB Cable |
| Resistance | 3mΩ - 3Ω |
Electrical and HVAC products sold by Sparky Direct are intended for installation by licensed and appropriately qualified professionals in accordance with applicable Australian Standards and regulatory requirements. Customers are responsible for ensuring that any product purchased, including any related or associated components, is compatible and suitable for their intended installation and application.
Sparky Direct does not provide installation advice and does not assess product suitability for individual circumstances unless expressly confirmed in writing. Customers must confirm correct product selection, compatibility, compliance, and suitability with a licensed or appropriately qualified professional prior to purchase.
Tools sold by Sparky Direct must be used safely and in accordance with the manufacturer’s instructions. Customers are responsible for ensuring they have the necessary knowledge and competence to operate any tool purchased. If you are unsure how to safely or correctly use a tool, do not use it and seek guidance from the manufacturer or a suitably qualified professional.
Nothing in this clause limits or excludes any rights or guarantees available under the Australian Consumer Law.
For website terms and conditions https://www.sparkydirect.com.au/terms-of-use
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YOUR ATTENTION PLEASE: Shipping is not available to for this product. Only order this product is you intend to pick it up locally. We will not ship this product to you if you order this. If you wish to cancel this order after ordering it you will be charged a 3.0% Refund Fee