In this tutorial we will show you how to properly test for voltage. Voltage is important for determining the charge level on your cells, and to be certain you have things wired correctly after you build a pack.

This tutorial is based on our Mini Meter Pro, but can be done with any comparable MultiMeter. Most meters have DC voltage capability. It also assumes that your are using our Micro Plugs on everything.

Mini Meter Pro
Any Battery or Power Source

To test the voltage of a battery, set your mini meter’s dial to 20 on the DC Voltage Scale. On our Mini Meter this is 3 clicks counterclockwise from off. Connect the black test lead to the “Com” or far left hole Connect the red test lead to the “VMA” or center hole

Now you just need to attach the test leads to the cell and you will get a voltage reading. If you see a negative to the left it means that you are backwards, but this is fine as the Mini Meter can measure positive and negative voltage as can most MultiMeters.

You can use the same process to measure a cell that is within a pack. Simply connect the probes the same as before and the meter will only ready the cell you are currently attached to. This way you can check your pack to make sure both cells are at similar voltage. They should be within .5v of each other.

If you have a Micro Plug on your battery pack you just plug it in to check the pack for voltage.

Need to test at the track? No problem, just plug it in.

This is why I love the Mini Meter Pro, it is compact and accurate and very convenient. We have a high end Fluke MultiMeter in the shop, but tend to go for the Mini Meter Pro more often.

I am always surprised at how many people don't know how to use a meter. It is a very handy tool in general and is indispensable if you are going to be involved in any R/C Hobby. There are many uses for it, diagnosing problems, making comparisons, checking battery packs, wiring, ETC. If you don't have a meter, do yourself a favor and get one. You will be glad you did.