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Product Description

130A RC Car Power Analyzer with backlit display is a versatile tool that allows the user to measure many aspects of a power system. With this device you can measure to ensure peak currents are safe for motor, ESC, wiring and connectors. You can also check battery health and performance, evaluate charging efficiency, and measure power and energy consumption of any device with a battery. Input: 4.8v - 60v. Display Type: LCD. Length: 3.35. Height: 0.98. Width/Diameter: 1.77. Weight: 6.4 oz.

From the Manufacturer

The GT Power 130A RC Car Power Analyzer with backlit display is a versatile tool that allows the user to measure many aspects of a power system. With this device you can measure to ensure peak currents are safe for motor, ESC, wiring and connectors. You can also check battery health and performance, evaluate charging efficiency and measure power and energy consumption of any device with a battery.

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Customer reviews

87 global ratings

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Customers say

Customers like the functionality, accuracy, and value of the product. They mention it works well for their needs, is accurate, and worth the $23 cost. Some are also happy with the build quality and ease of setup. However, some disagree on the display readability and voltage draw.

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Functionality Accuracy Value for money Battery monitoring Build quality Ease of setup Display readability Voltage draw

32 customers mention "Functionality"25 positive7 negative

Customers like the functionality of the product. They mention it works well for their needs, is an amazing device, and works great for monitoring wattage, amp hours consumed, and seeing the slow drop of power output. Some say the unit works perfectly with a battery source but doesn't seem to work with a DC power supply.

"...idle(motors armed), mid, and full throttle it worked great & was within the specified tolerances they gave in the manual...." Read more

"Works well, values seem to be very close, and the alternate power plug to retain memory is great...." Read more

"...Two wires to power source (battery etc) two wires to the load. Mine works great, seems well calibrated to known good readings, and the one I..." Read more

"Worked great for what i needed it for. I used it inline of a fuel pump for measuring amp and voltage draws...." Read more

13 customers mention "Accuracy"10 positive3 negative

Customers like the accuracy of the product. They mention it's well calibrated to known good readings and reads voltages correctly. It helps with calculating flight times.

"...It read the voltages correctly...." Read more

"...the meter by running a trailer tail-light for 24 hours, all the values were correct, and I am please with the case and quality." Read more

"...It seems fairly accurate when measured against my Clamp on Ammeter and against my shunted Ammeter." Read more

"Not calibrated... it'll work in a pinch. Just don't use these numbers against another meter." Read more

13 customers mention "Value for money"13 positive0 negative

Customers appreciate the value for money of the product. They mention it's worth the $23 cost, a satisfactory low-cost power meter, and remarkable value for gaining insight into what a battery is capable of.

"...Great tool with a great price. I'll probably order a couple more to have some spares." Read more

"Works well, values seem to be very close, and the alternate power plug to retain memory is great...." Read more

"...Despite this, the unit is a remarkable value for gaining insight into what a battery or charging system is up to...." Read more

"...and load, no extra wiring for a shunt is required. Low cost power monitoring...." Read more

10 customers mention "Battery monitoring"10 positive0 negative

Customers like the battery monitoring of the tool. They mention it's a great and invaluable tool for any hobbyist to have in the flight box.

"...A great & invaluable tool to for any hobbyist to have in the flight box...." Read more

"Does just what it says. Great little tool for my application. I fly electric RC aircraft and use to bench test and analyze electric motor setups...." Read more

"...But I find these things useful in monitoring my batteries." Read more

"Nice small meter that seems to be very accurate. Use it with radio equipment to ensure I am not overloading source...." Read more

8 customers mention "Build quality"8 positive0 negative

Customers are satisfied with the build quality of the product. They mention it's well-secured and arrived on time.

"...light for 24 hours, all the values were correct, and I am please with the case and quality." Read more

"...Item arrived on time and well secured. I installed immediately being careful not to connect under load from solar panels or battery...." Read more

"Very affordable, well made, perfect when used with Anderson PowerPole connectors (so you can move it about by will for other uses)...." Read more

"...This is amazing and simple, no buttons or dials to adjust, hook it up and your done." Read more

5 customers mention "Ease of setup"5 positive0 negative

Customers find the product easy to setup. They mention it's simple and effective.

"The unit is simple but there's one catch. I actually threw it in the bin until I read about this...." Read more

"...OK's: Instructions are relatively clear for connection and application. Amperage readings are .06 amps low compared to reference 0 - 2..." Read more

"...This is amazing and simple, no buttons or dials to adjust, hook it up and your done." Read more

"Easy to install.." Read more

21 customers mention "Display readability"10 positive11 negative

Customers have mixed opinions about the display readability of the tool. Some mention it's great, while others say it's really hard to read.

"...The display is good, but could be more crisp. It's also not easily readable from any angle besides straight on." Read more

"...a deep cycle 12v battery, after I came back in an hour, the display is all messed up with numbers and characters all over, unreadable...." Read more

"...The illumination LED is very bright at night." Read more

"...So if there's any way that current can bypass this device, it will read too low." Read more

6 customers mention "Voltage draw"2 positive4 negative

Customers have mixed opinions about the voltage draw of the product. Some mention it's good with hardly any voltage drop and can handle high DC current, while others say the voltage reads 6% high compared to reference from 0 to 20 volts. The quiescent current draw is quite high, just over 22mA at 12V, and the intermittent current draw is about 0.40 amps intermittently.

"...seconds the wires CAN and WILL melt down 12awg wire is not meant for that high of amps and will not be a accruate reading due to high resistance..." Read more

"...One of them is good with hardly any voltage drop but the other two draw about 0.40 amps intermittently as it goes through a fast sampling cycle...." Read more

"...Negatives: Voltage reads 6% high compared to reference from 0 - 20 volts..." Read more

"It can handle high DC current..." Read more

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Abdul Purnell Askew SR

A must have tool for testing your power setup

Reviewed in the United States on December 28, 2013

Verified Purchase

This item came in the time frame specified & was well packed. After soldering on my own connectors(it doesn't include connectors), I gave it a test run with just hooking up a 3S 2200 mah, a 3S 2600 mah, a 3S 5000 mah, and a 6S 2600 mah lipo(S). It read the voltages correctly. Then I hook it up to my quadcopter & ran my quad at idle(motors not armed), idle(motors armed), mid, and full throttle it worked great & was within the specified tolerances they gave in the manual. A great & invaluable tool to for any hobbyist to have in the flight box. This helps me get the most efficiency out of my power setup because I can see what I'm pulling out of my power system. Great tool with a great price. I'll probably order a couple more to have some spares.

One person found this helpful

Helpful

Radar Mile

Amazing and useful small meter!

Reviewed in the United States on December 18, 2014

Verified Purchase

Works well, values seem to be very close, and the alternate power plug to retain memory is great.
The leads are extremely short, but the silicone insulation is nice, extending the wires is easy.
I tested the meter by running a trailer tail-light for 24 hours, all the values were correct, and I am please with the case and quality.

Helpful

Christopher B.

Lacks precise meter accuracy, but very useful anyway

Reviewed in the United States on September 12, 2018

Verified Purchase

This was my 3rd buy of this or a later 150 A version of product (do NOT reverse polarity!). This one reads a few hundredths to a tenth or so high on voltage (vs. my Fluke), so I assume that also affects the accuracy of all other readings proportionately. I looked inside, but there are no obvious calibration pots or otherwise. Despite this, the unit is a remarkable value for gaining insight into what a battery or charging system is up to. Use your VOM instead of this to measure voltage precisely, but the unit will give a good sense of current flow, power consumption, and approximate capacity. Fab up your own Molex-style BLS-3 connector with a 9-volt battery harness and you can run this right down to 0 volts -- pretty nice.

One person found this helpful

Helpful

Arnold Watson

I hooked one of these up to a deep cycle ...

Reviewed in the United States on September 8, 2015

Verified Purchase

I hooked one of these up to a deep cycle 12v battery, after I came back in an hour, the display is all messed up with numbers and characters all over, unreadable.

When I disconnect and reconnect, the display only shows one number in 6 spots on the screen.
I let it sit for a couple of days and when I give it power again it works for 20-30 seconds then starts going nuts again.
I don't even have a load on it, probably going to get a different analyzer.

3 people found this helpful

Helpful

David Kingsland

Be very careful how you use this.

Reviewed in the United States on September 15, 2019

Verified Purchase

The unit is simple but there's one catch. I actually threw it in the bin until I read about this. The measurement is in the negative line, not the positive. So if there's any way that current can bypass this device, it will read too low.

Helpful

Dan Bales

I used this device to measure the flow of solar ...

Reviewed in the United States on July 23, 2014

Verified Purchase

I used this device to measure the flow of solar power from the Charge controller (source) to the battery (load) on my RV solar system (Sponsored by Renogy). There was 3 videos I found on YouTube making similar applications.

Video 1: Compared this to similar products. O scope readings indicated GT Power was most accurate.
Video 2: Small soar setup with Solar panels as "Load" and Battery as "source." Not the configuration I chose nor would.
Video 3: Small solar setup mounted GT between Battery (Source) and Inverter (Load). This will be the configuration for GT Controller #2 I plan on installing.

Item arrived on time and well secured. I installed immediately being careful not to connect under load from solar panels or battery. I was only able to monitor the system for about 2 days before bringing he RV back to storage until this upcoming weekend. The unit functioned as promise by the manufacturer providing real time statistics on all critical information monitoring what was flowing through it. Its been killing me all week to see if it still works but I will just have to wait till Friday. Hopefully it works and nothing has shorted...

Keep in mind this unit was designed to measure small RC batteries and equipment, not a solar system. The manufacturer will not provide support, tech advice or warranty for applications other than what it specifies.

2 people found this helpful

Helpful

L. Nguyen

It can handle high DC current

Reviewed in the United States on January 28, 2014

Verified Purchase

I should have bought 2 of these instead of the much raved about "Watt's up" device. This one is bigger and feels much better. It can handle 40amp DC with ease. The little "Watt's up" wires is getting very hot when the DC current is around 30amp. I agreed that the back lid screen is not easy to read as the other little one with no back lid. I wish it could store KWh instead of resetting itself to 6545Wh. I wish the wires are a bit longer (like 1-2 inches more). For the $20 price, i'll take this any day instead of the $54 "Watt's up" one. I highly recommend to feed it with an external power source using your own little female socket.

After 1+ month use, there are some problems with the unit. I use external battery to keep the display on when the source power went out but the display does not show anything. I used to show and retain the values but now everything completely goes blank. When the power source is on, the unit resume working normal. Obviously, this does not do what I want to retain the values with external power when solar power is gone (the night comes)

The other $54 unit is working fine.

One person found this helpful

Helpful

StevenWR

NICE

Reviewed in the United States on April 24, 2014

Verified Purchase

I found a battery with a really high resistance to charge with this which helped me determine a problem with a battery bank running down to fast it was being a leach to the other batteries due to not being charged as fast as the others. I have no problem with the blue back light at all i actually like it.

Ive used it to test my solar deep cycle batteries check the amps from the solar panels and calibrate another meter i have using this and also seeing what my inverter pulls off the batteries under normal usage. All i can say is its been really usefull.

**CON** wire this thing comes with is 12 awg under any circumstance DO NOT try to pull 130 amp through this for longer then a few seconds the wires CAN and WILL melt down 12awg wire is not meant for that high of amps and will not be a accruate reading due to high resistance from smaller guage wire. At best and the most to trust it with would most likely be 20amp constant 50amp surge and the wire will heat up at 50amps just keep an eye on it if the load is going to be that high for very long.

Over all no regrets buying it. Just would have been nice for the seller not to sit on my money for a week before mailing it.

4 people found this helpful

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Brand	GT Power
Power Source	Battery Powered
Item Weight	6.4 ounces
Item dimensions L x W x H	3.25 x 1.75 x 1 inches
Specification Met	No

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RC 130A Power Analyzer Battery Consumption Performance Monitor

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