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Spartan Power DC Meter Battery Monitor & Multimeter 0-100A 0-200VDC LCD Display Comes with 100A Current Shunt and Wiring Kit

4.2 4.2 out of 5 stars 468 ratings

$18.95
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100A
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Purchase options and add-ons

Brand Spartan Power
Power Source Dc
Style Voltage Tester
Color Black
Item Weight 8 ounces

About this item

  • TWO YEAR WARRANTY vs ONE! In the Box: SP-8VM100A Meter, 100A Shunt, Wiring Kit, User Manual. USA tech support.
  • Multifunctional battery meter displays: Battery Voltage, Discharge Current, Discharge Power, Discharge Impedance, Internal Resistance, Capacity, SOC, Energy, Running Time
  • Great for use with a solar charge controllers, inverters, automobiles, RV, vans, truck campers, boats, etc
  • 0-200 Volts DC, 100A Max
  • Spartan Power’s Gen2 DC meter, no screws needed for installation.
See more product details

Additional Details

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Product Description

Spartan Power Battery Monitor / Meter with Shunt & Wiring Kit

battery monitor smartshunt shunt meter multimeter inverter volts amps current capacity boat marine

Two models to choose from: 100A or 300A!

Battery Monitor Specs:

  • Current: 0-100A
  • Voltage: 0-200V (when the test voltage is<8V, use the independent power supply mode)
  • Power: 0-20000W
  • Impedance: 0-1000Ω
  • Internal resistance: 0-999mΩ
  • Capacity: 0-1000AH
  • SOC: State of Charge
  • Energy consumption: 0-9999kWh (Note: 1Wh=0.001kWh=0.001 Kilowatt)
  • Running time: 0-999 hours (load required for calculation)
  • Measurement accuracy: 1%

USA Tech Support

Have a question? Spartan Power is located in Reno, Nevada where we assemble all of our heavy duty Made in the USA battery cables. All battery monitor tech support is provided here by our English speaking experts.

battery monitor smartshunt shunt meter multimeter inverter volts marine amp amps current capacity

battery monitor smartshunt shunt meter multimeter inverter volts amps current capacity  multiplus

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Simple Wiring Setup

Use the included wiring to easily install your new battery meter. Need longer wiring, we have those too! Have a wiring question? Ask away!

Small in Size, Big on Features!

Small in size, big on features! 9 in 1 multi-functional battery meter displays: Battery Voltage, Discharge Current, Discharge Power, Discharge Impedance, Internal Resistance, Capacity, SOC, Energy, Running Time

Shunt and Wiring Included!

Two models are available: 100A and 300A, both come with their own different shunt!

MC4 Solar Connector Male and Female parallel cable PV panels series Y branch T 2 to 1 3 to 1 crimp Y branch T 2 to 1 3 to 1 crimp MC4 Solar Connector Male and Female parallel cable PV panels series T 2 to 1 3 to 1 crimp MC4 Solar Connector Male and Female parallel cable PV panels series Y branch 3 to 1 MC4 Solar Connector Male and Female parallel cable PV panels series Y branch T 2 to 1  crimp 3 to 1 T 2 to 1 MC4 Solar Connector Male and Female parallel cable PV panels series Y branch crimp
MC4 Solar Connectors 2 to 1 Y Connectors 2 to 1 T Connectors 3 to 1 Y Connectors 3 to 1 T Connectors
Customer Reviews
4.0 out of 5 stars
19
4.5 out of 5 stars
107
4.7 out of 5 stars
141
4.4 out of 5 stars
117
4.5 out of 5 stars
127
Price $14.99 $7.99 $7.99 $12.99 $11.99
Connector Type: 1 to 1 MC4 M/F 2 to 1 Y Branch M/FF & F/MM 2 to 1 T M/FF & F/MM 3 to 1 Y Branch M/FFF & F/MMM 3 to 1 T M/FFF & F/MMM

Product information

Technical Details

Additional Information

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Spartan Power DC Meter Battery Monitor & Multimeter 0-100A 0-200VDC LCD Display Comes with 100A Current Shunt and Wiring Kit

Spartan Power DC Meter Battery Monitor & Multimeter 0-100A 0-200VDC LCD Display Comes with 100A Current Shunt and Wiring Kit


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Spartan Power DC Meter Battery Monitor & Multimeter 0-100A 0-200VDC LCD Display Comes with 100A Current Shunt and Wiring Kit
Spartan Power DC Meter Battery Monitor & Multimeter 0-100A 0-200VDC LCD Display Comes with 100A Current Shunt and Wiring Kit
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Price$18.95-23% $111.35
List:$145.00
$33.95$18.99
Delivery
Get it as soon as Saturday, May 18
Get it as soon as Friday, May 17
Get it as soon as Friday, May 17
Get it as soon as Friday, May 17
Customer Ratings
Accuracy
4.1
4.4
4.4
4.0
Easy to install
4.0
4.6
3.7
3.9
Easy to read
3.9
4.4
4.4
Value for money
4.0
4.4
3.9
Sold By
Inverters-R-US
JBTools
QWORK
MNJ MOTOR OFFICIAL
power source
Dc
Battery Powered
Battery Powered
Solar,battery Powered
measurement type
Multimeter
Ammeter, Voltmeter
Ammeter, Multimeter, Voltmeter
min operate voltage
6.5 volts of direct current
8 volts
style
Voltage Tester
500A
Voltage
Voltage Tester
weight
0.5 pounds
0.4 kilograms
0.02 kilograms

Looking for specific info?

Customer reviews

4.2 out of 5 stars
4.2 out of 5
468 global ratings

Customers say

Customers like the design of the electric circuit testing device, describing it as neat and intelligent. They also like the accuracy and quality. However, some customers have reported issues with the screen and length of the wires. They say the display is unreadable and hard to read. Customers also disagree on ease of installation, performance, and value.

AI-generated from the text of customer reviews

7 customers mention7 positive0 negative

Customers are satisfied with the quality of the electric circuit testing device. They mention that it's a useful tool for monitoring, determining the battery condition, and keeping a record of production and consumption. The screen is easy to read.

"...It even keeps a record of production and consumption. The screen is also easy to read. Very happy with this." Read more

"...They appear to be reasonably accurate for monitoring battery usage." Read more

"...Its very handy for determining the battery condition and how much current I'm drawing at any given moment." Read more

"Useful tool for monitoring" Read more

6 customers mention6 positive0 negative

Customers are satisfied with the accuracy of the electric circuit testing device. They mention that the readings are fairly accurate based on actual measured current draw.

"...It has a clear readout on the display. As far as I can tell, it is accurate and shows the current draw when using the batteries...." Read more

"...It was cheap.* Display is bright and easy to read.* Seems to be accurate enough*..." Read more

"...The WattHour and AmpHour readings seem to be pretty accurate based on actual measured current draw...." Read more

"...Close to 6ft in length. Seems very accurate when comparing charging wattage to the meter. No complaints other than the short leads." Read more

4 customers mention4 positive0 negative

Customers are satisfied with the design of the electric circuit testing device. They mention it's a neat looking product, has an intelligent design, and is a really cool gadget.

"...Probably would not recommend doing business with this company Neat looking product but in reality you’re probably better off spending a little more..." Read more

"Really cool gadget for anyone with solar...." Read more

"Intelligent design, as advertised!..." Read more

"nice, compact monitor..." Read more

34 customers mention20 positive14 negative

Customers are mixed about the ease of installation. Some mention it's very easy to use and install, with good quality materials, and an easy reading front screen. However, others say the instructions aren't very clear, the unit is a little challenging to set up, and there is no technical assistance number on the instructions.

"...The reading is very accurate and it reads the same numbers as my Wattsup RC hobby meter." Read more

"...You can't be in a hurry. It works but it's cumbersome." Read more

"...There were no written directions. It has a clear readout on the display...." Read more

"...It even keeps a record of production and consumption. The screen is also easy to read. Very happy with this." Read more

21 customers mention13 positive8 negative

Customers have mixed opinions about the performance of the electric circuit testing device. Some say it seems to work great, while others say it falls short of its overall expected performance. Some customers also mention that the instructions are not the best and that they had issues with the first unit.

"...So although the item works and works well, the rating has been lowered due to the power that has to be used to keep the item..." Read more

"Good value, does work well for my small battery/inverter power station...." Read more

"...Tried unplugging everything and reconnecting but still wouldn't work. Not impressive.I asked for a replacement which was shipped quickly...." Read more

"Works well but instruction translation is poor. Checked accuracy and shunt is about 30 Ma low on the 100 amp shunt. Good buy for the money." Read more

13 customers mention9 positive4 negative

Customers are mixed about the value of the electric circuit testing device. Some mention it's a good buy for the money, works well, and is very cheap. Others say it'll be a true SOC meter, and not the best quality.

"...Good value for the money." Read more

"...get it installed, the product does what it’s supposed to do and was very cheap, so buyers will get a functional and useful product...." Read more

"...Didn't even bother attempting to install i. What a cheap piece of crap. I can't even believe they sell this or that I was dumb enough to buy it...." Read more

"...Things I liked:* It was cheap.* Display is bright and easy to read.* Seems to be accurate enough*..." Read more

6 customers mention0 positive6 negative

Customers are dissatisfied with the screen of the electric circuit testing device. They mention that it's unreadable, small, and hard to read. Some say that the display is fading away.

"...I came out the next morning and the screen was dark. Tried unplugging everything and reconnecting but still wouldn't work. Not impressive...." Read more

"...and looking at the instructions, I knew right away from the poorly translation...." Read more

"Display is fading away." Read more

"...The display is very small and hard to read but seems to operate correctly now. There is no technical assistance number on the instructions." Read more

4 customers mention0 positive4 negative

Customers are dissatisfied with the length of the electric circuit testing device. They mention that the wires and shunt leads are ridiculously short.

"...up was difficult due to useless instruction manual and ridiculously short wires...." Read more

"...I'll have to* Cables are a little short.* Terminals that the cables plug into in the device are not secure at all...." Read more

"...Installation was pretty straightforward, but the included wires are too short to be useful. It was easy to substitute a some longer wires." Read more

"Shunt leads are extremely short.. I ended up using 16 gauge fine strand for the black blue and yellow wires to mount the panel with my other boat..." Read more

It works perfectly
5 Stars
It works perfectly
I used a grey plastic wall switch enclosure to house the shunt. I used a dremel tool to open the side in order to accommodate the shunt and used zip ties to keep it secured in place. I attached this box to the wall very close to the connector where or the negative load connectors merge using about six inches of #2 cable. The battery cable on the other side is about one foot.I then used a length of 2 two conductor cables with red and black wires inside. I used the two black wires for the connectors that attach to the shunt side on the battery side and a red one for the shunt on the side that connects to the load side on the shunt and the other red for the positive power source or the meter. (see photos)That allowed me to place the meter on the wall in a place that it is easy for me to read. The reading is very accurate and it reads the same numbers as my Wattsup RC hobby meter.
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Top reviews from the United States

Reviewed in the United States on August 17, 2021
I used a grey plastic wall switch enclosure to house the shunt. I used a dremel tool to open the side in order to accommodate the shunt and used zip ties to keep it secured in place. I attached this box to the wall very close to the connector where or the negative load connectors merge using about six inches of #2 cable. The battery cable on the other side is about one foot.
I then used a length of 2 two conductor cables with red and black wires inside. I used the two black wires for the connectors that attach to the shunt side on the battery side and a red one for the shunt on the side that connects to the load side on the shunt and the other red for the positive power source or the meter. (see photos)
That allowed me to place the meter on the wall in a place that it is easy for me to read. The reading is very accurate and it reads the same numbers as my Wattsup RC hobby meter.
Customer image
5.0 out of 5 stars It works perfectly
Reviewed in the United States on August 17, 2021
I used a grey plastic wall switch enclosure to house the shunt. I used a dremel tool to open the side in order to accommodate the shunt and used zip ties to keep it secured in place. I attached this box to the wall very close to the connector where or the negative load connectors merge using about six inches of #2 cable. The battery cable on the other side is about one foot.
I then used a length of 2 two conductor cables with red and black wires inside. I used the two black wires for the connectors that attach to the shunt side on the battery side and a red one for the shunt on the side that connects to the load side on the shunt and the other red for the positive power source or the meter. (see photos)
That allowed me to place the meter on the wall in a place that it is easy for me to read. The reading is very accurate and it reads the same numbers as my Wattsup RC hobby meter.
Images in this review
Customer image Customer image Customer image
Customer imageCustomer imageCustomer image
8 people found this helpful
Report
Reviewed in the United States on February 15, 2022
This is my second meter I've added to my home built battery power station, one for power in (100 A meter) and 1 for power out (300A meter).
Both measure the same voltage. Its nice knowing how much power I'm using and how much I'm outgoing back in.

The only issue I have is the single button system for reading and resetting the values. You can't be in a hurry. It works but it's cumbersome.
Reviewed in the United States on January 23, 2022
I gave it 4 stars for the install as I had to use the illustrations for the install. There were no written directions. It has a clear readout on the display. As far as I can tell, it is accurate and shows the current draw when using the batteries. Good value for the money.
One person found this helpful
Report
Reviewed in the United States on January 19, 2023
I was once told you cannot ever improve anything if you do not take measurements. If you have a solar setup, you probably want to grab one of these. The amount of information it gives you about the input, output and storage of your solar setup is everything you will need to make improvements or prepare for upgrades. It even keeps a record of production and consumption. The screen is also easy to read. Very happy with this.
Reviewed in the United States on April 4, 2024
I have 2 of these installed in my RV. The screens on both have failed (go dim) after a year or two of use. I've replaced both and they've failed again within 2 years.

The wire push connections are convenient in that they are push operated, but the spring is weak and the wire slips out easily.

This would be a 5 star if the screens didn't dim in spite of the weak connectors. They appear to be reasonably accurate for monitoring battery usage.
Reviewed in the United States on July 3, 2023
It's very good way to measure your lithium lifepo4 batterys capacity
Reviewed in the United States on August 2, 2022
I ordered one, installed it and it seemed to work great. Current draw, battery voltage etc was all working. I came out the next morning and the screen was dark. Tried unplugging everything and reconnecting but still wouldn't work. Not impressive.
I asked for a replacement which was shipped quickly. I sent the old one back and installed the new one. After one day the screen started flicking off and on. After 2 days it was also black and is now going back for a refund.
Piece of garbage, save your time and money and get something else.
One person found this helpful
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Reviewed in the United States on July 10, 2023
Fast shipping and packaging was excellent
One person found this helpful
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Top reviews from other countries

Stephen Day
5.0 out of 5 stars Couldn't ask for more
Reviewed in Canada on June 24, 2019
I used this to replace the ~35 yr old analog meter on my boat. It is a pretty tiny unit so it fit in the same spot on the panel; just needed to widen the opening a little with a Dremel. The only thing it doesn't do is measure current in both directions (if you generate more than you draw, it reads 0 Amps).

Other pros:
* draws almost no current on its own, even with the backlight (<5 mA)
* backlight is easily turned on/off
* stable reading down to 0.01 Amp and 0.01 Volts
* the included shunt feels solid
* $25 CAD!!
Customer image
Stephen Day
5.0 out of 5 stars Couldn't ask for more
Reviewed in Canada on June 24, 2019
I used this to replace the ~35 yr old analog meter on my boat. It is a pretty tiny unit so it fit in the same spot on the panel; just needed to widen the opening a little with a Dremel. The only thing it doesn't do is measure current in both directions (if you generate more than you draw, it reads 0 Amps).

Other pros:
* draws almost no current on its own, even with the backlight (<5 mA)
* backlight is easily turned on/off
* stable reading down to 0.01 Amp and 0.01 Volts
* the included shunt feels solid
* $25 CAD!!
Images in this review
Customer image
Customer image
5 people found this helpful
Report
Marco
4.0 out of 5 stars Does it s job
Reviewed in Canada on July 3, 2023
4 stars because setting it up is not easy. Best to go on you tube for instructions.
Richard T.
5.0 out of 5 stars Works as described
Reviewed in Canada on September 26, 2021
Everything else work fine. It is a good meter and worth the money. Just see zeros on internal resistance. I sent an email asking about it but no response yet. It has been a couple of weeks. That is the reason for the 4 stars.
Shawn Scheurer
1.0 out of 5 stars Cheap Cheap, very Cheap
Reviewed in Canada on June 19, 2019
I knew for the price it was going to be a hit or miss. I installed this on my rv, seemed to work for an hr, then I noticed the only display was voltage.