Watt's Up Meter

Let’s say “what’s up” to the Watt’s Up Meter! The Watt’s Up makes it easy to measure a project's charge/energy demands and battery capacity, capture peak power and measure high currents. All functions missing from most multimeters. An all-in-one digital DC amp meter, Watt’s Up measures current, voltage and time — and from those measurements calculates peak current, peak power, minimum voltage, power (W), energy (Wh)and charge (Ah) values for you, in real time, for the circuit in which you connect it.

The Watt’s Up is perfect for situations when you need to evaluate project current and energy needs, prevent peak currents damaging a battery, for operating motors, balancing battery cells, setting cutoff voltages and more. Each Watt’s Up has been equipped with two sets of wires marked “SOURCE” and “LOAD” as well as a 16x2 black-on-green sharp LCD screen.

  • Measures 8 DC Values:
    • Amps: (0--100 peak)
    • Peak Amps
    • Peak Watts
    • Amp-Hours (Ah): (0--65)
    • Watt-hours (Wh): (0--6554)
    • Watts: (0--6554)
    • Minimum Voltage ("sags")
    • Voltage: (0--60)
  • Built-in current shunt resistor
  • Easily resets accumulated readings using external pushbutton switch
  • Self-powered (~ 0.007 Amps) or uses an auxiliary battery
  • No computer needed
  • Accuracy within 1%
  • ISO 9001
  • Made in the USA

Watt's Up Meter Product Help and Resources

Core Skill: Soldering

This skill defines how difficult the soldering is on a particular product. It might be a couple simple solder joints, or require special reflow tools.

1 Soldering

Skill Level: Noob - Some basic soldering is required, but it is limited to a just a few pins, basic through-hole soldering, and couple (if any) polarized components. A basic soldering iron is all you should need.
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Core Skill: Electrical Prototyping

If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.

3 Electrical Prototyping

Skill Level: Competent - You will be required to reference a datasheet or schematic to know how to use a component. Your knowledge of a datasheet will only require basic features like power requirements, pinouts, or communications type. Also, you may need a power supply that?s greater than 12V or more than 1A worth of current.
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Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • Member #617856 / about 7 years ago / 4

    I would have use for something like this IF it had a way to read out the info electronically. (say, RS232 or similar serial method) Would make a great MPPT tracking device for solar panels or tracking historical performance data of a device under test and over a long period of time without having to watch the LCD.

    Just my 2 cents worth.

    • chrwei / about 7 years ago / 2

      even just a single wire 9600 baud TTL serial TX stream of data would be extremely useful, even if it only sent when the screen updates. I'd even give 5 cents for that :D

      • jklemmack / about 7 years ago / 1

        Yes!!! I have series of remote 100% solar installs (think 1.7kW solar and 400Ah batteries) and need remote monitoring of power consumption. Our MPPT charge controller will accurately tell me voltage, but the output current is +/- 20%!

      • Sembazuru / about 7 years ago / 1

        I wonder if any of the test points on the board actually provide that or something similar? Anyone up for a tear down and investigation? I wonder if Micah of ScanLime would be up to doing this...

  • Wayne Seltzer / about 7 years ago * / 1

    RC Electronics has an online simulator - {http://www.rc-electronics-usa.com/ammeter-simulator.html} to get a feel for how Watt's Up works. Nicely done!

  • Ted M / about 7 years ago * / 1

    In the video you have it specified as 10A, the documentation shows 50A/100A peak. (Those wires do look a little wimpy for 100A though).

Customer Reviews

5 out of 5

Based on 3 ratings:

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Fantastic unit!!

Very easy to use and the unit was accurate. Will be built into some test equipment very soon.

Watt's up meter

Works as advertised. Gives you the information you need to make decisions on device under test.

Great accessory for Ebike

Built three Ebikes and have used these on all. Very useful to keep up with battery voltage and Watt-hours which is the best way to determine just how much more charge you really have.