150A Solar Watt Meter (includes bonus 2x anderson plugs)

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Watt & Power Meter for use with Solar Panels. (Now with Bonus x 2 extra Anderson Plugs)

Do you want to know exactly how much power your solar panel is producing? It's often been difficult to measure this without special equipment or expert knowledge. However, our Watt & Power Meter is a simple yet extremely handy device that gives a digital display of exactly how much charge your panels are actually producing.  This Watt Meter is easily installed and provides you with all the key ratings of your solar panels in real-time. This is a perfect companion to our range of Portable Solar Panels, but can be used with any type of solar panel setup. Installation is so easy as our Watt Meter has two Anderson plugs, and is installed in-line between your solar regulator and batteries/load. Simply connect the solar panel regulator's output to the labelled "source" side of the watt meter, and connect the battery/load cabling to the "load" side. Once there is power flowing through the Watt Meter, the device will initialise and show you a full range of ratings including:

  • Current (Amps/A) at the present moment
  • Voltage (Volts/V) at the present moment
  • Power (Watts/W) at the present moment
  • Total Amps (Amp hours/Ah) since device initialised
  • Total Power (Watt hours/Wh) since device initialised
  • Highest Voltage Maximum (Vm) since device initialised
  • Highest Power Peak (Watt Peak/Wp) since device initialised
  • Highest Current Peak (Amp Peak/Ap) since device initialised

Our Solar Watt Meter only requires a tiny 7mA draw to operate, so there will be no significant reduction in your power production during usage. This Watt Meter is especially useful to measure the power consumption of your 12volt fridge over time, say for a 24-hour period, as the fridge cycles on and off to maintain a set temperature. A Watt Meter can also be used to monitor the output of your solar panel over the course of a day. Aussie Batteries and Solar are experts in Watt Meters and ours have been custom assembled to include 50 Amp Anderson plugs, ideal for the 4WD and Camping and Caravanning enthusiast. The Anderson plugs are installed at our factory and you can leave them installed, or if you would like a modification give us a call and speak to us about installing a connector of your choice.  These Watt Meters can also be hard-wired into a vehicle or camper trailer. Why not speak to us about what configurations will work for you as we are happy to customise for your needs.


150A Solar Watt Meter (includes bonus 2x anderson plugs) has a rating of 4.36/5 based on 39 reviews.

Watt Meter

Proved to be very useful, I actually used the meter between my solar panel and the regulator to make sure I was getting the most out of my panel.

on 8 May 2019

Watt Meter

The display was not very clear. When I contacted Aussie BAtteries they sent another meter free of charge

on 3 May 2019

150A Solar Watt Meter - good value

Arrived quickly and worked well in the car, the two anderson plugs supplied with it made it easy to install

on 1 May 2019

Solar Watt Meter

This product is the ideal tool for those who want to monitor solar panel performance and know the charge status of their batteries.

on 8 April 2019

150a solar war metre

Have not gone camping yet but l have connected it up. All the informations l need is there can't wait to go camping

on 13 March 2019

150A Solar Watt Meter

I've had one of these for a couple of years prior to my latest purchase and the meter has performed faultlessly. The extra Anderson plugs are much appreciated as they are now the de facto standard.

on 6 February 2019

150A Solar Watt Meter

Excellent product , provides all the info that I require when using my Aux batteries. Great quality and Great service .

on 23 January 2019

Do you know what your panels are up to?

Bought the watt meter with my 140Ah battery and on the first trip out was able to diagnose a problem with my solar panels (from another supplier) Not a happy camper when you are faced by the prospect of drinking warm beer by day 5. Fired a rocket up the supplier of the portable panels, but because I was able to provide 5 days of data that I recorded, I was able to prove there is a problem with the panel that they reluctantly agreed to replace. Plugged the new panel in and immediately could verify that the new panel is working exactly as it is supposed to.

on 18 January 2019

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150A Solar Watt Meter Specifications
Safe Operating Voltage 0V - 60V
Safe Operating Current 0 - 100A Intermitten
50A Continuous
Note: this assumed the device's writes are in free air, and attached to connections at or below temperature of 35C with adequate air flow. 100A operation time depends on ambient and wiring temperatures.
Nominal Operating Conditions 0C - 50C ambient air temperature, non condensing humidity
Note: Max temperature must be reduced at max current rating.
Measurement Update Period 400 mS
Data Queue Sequence Time 2 seconds
In Circuit Resistance 0.001 Ohms
Operation Current 7mA
Auxiliary Power Voltage 4.8V - 60V
eg. from a receiver battery
Dimensions Approx. 200mm L x 42mm W x 25mm D (including anderson plugs)
Approx. 85mmL x 42mmW x25mmD (only watt meter unit)
Weight Approx 130g
Display Screen 16 Character x 2 row STN LCD
Solar Watt Meter Measurement Parameters
Voltage 0 - 60V, 0.01V Resolution
Note: 0V min. w/auxiliary power, eg. a receiver battery. Otherwise, 4.0V
Current 0 - 150A peak, 0.01A Resolution
Note: 65A continuous
Power 0 - 9000W, 0.1W Resolution
Charge 0 - 65AH, 0.001Ah
Energy 0 - 9000Wh, 0.1Wh Resolution


2 year general warranty - 2 year warranty - repair of replacement warranty for construction or components

For more information, please read our full warranty policy

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