How to solve the inaccurate reading of battery voltage by Foxwell BT715

Sometimes, you may have the problem when use Foxwell BT715 to test the same 12V battery, it will read out different values. At this moment, some customers will think this foxwell battery analyzer cannot test battery accurately. In fact, the reason why the data read out is different is that you don’t properly connect the clamps of BT715 to the corresponding terminal of vehicle battery. Here will share a test report for reference.

 

Something to know firstly:

The positive and negative clamps of the battery inspection instrument are composed of two contacts (contact 1 and contact 2) insulated from each other. When testing, ensure that each contact is in good contact and insulated from each other.

How to solve the inaccurate reading of battery voltage by Foxwell BT715

 

Look! Here are three different connecting methods on the same battery.

How to solve the inaccurate reading of battery voltage by Foxwell BT715

 

Image 1: Connect two clamps of BT715 to the corresponding negative and positive of the battery properly

Image 2: Connect contact 1 & contact 2 of red clamp to the battery positive position, and connect contact 1 of black clamp to battery negative but contact 2 doesn’t.

Image 3: Connect contact 1 & contact 2 of black clamp to the battery negative position, and connect contact 1 of red clamp to battery positive but contact 2 doesn’t.

Result: The values read out are different.

 

See another connect method.

How to solve the inaccurate reading of battery voltage by Foxwell BT715

 

Image 1: Connect contact 1 & contact 2 of black clamp to the battery negative position, and connect contact 2 of red clamp to battery positive but contact1 doesn’t.

Image 2: Connect contact 1 & contact 2 of red clamp to the battery positive position, and connect contact 2 of black clamp to battery negative but contact1 doesn’t.

Result: Foxwell BT715 battery analyzer cannot start normally.

 

In conclusion:

You need to make sure the connection between both contacts of BT715 battery tester clamps and battery is correct, so that you can start the tester normally and the value of battery read out is accurate.

Note: If negative contacts 1 and 2 appear short circuit, there is no effect on voltage reading, but the impact on the health of the test battery is very significant.

 

Hope it helps you!

If you have any problem about Foxwell BT715 Battery Analyzer for 12V & 24V automotive battery tester, please feel free to contact us(www.foxwelltool.com).

(Visited 20 times, 1 visits today)
How to solve the inaccurate reading of battery voltage by Foxwell BT715
Share