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Minn Kota 1820087 MK-BM-1D Digital Battery Meter , Black

4.5 4.5 out of 5 stars 581 ratings
$17.82
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About this item

  • LED Screen gives current voltage of the battery being tested
  • “State of Charge” Indicators display battery status - 0, 1/3, 2/3, Fully Charged
  • Easy To Use: Touch the positive lead to the positive terminal on the battery and the negative lead of the probe to the negative terminal
  • Voltage and state of charge display automatically on contact with battery terminals
  • 1 Year Warranty from date of purchase
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Top Brand: Minn Kota

Highly Rated
50K+ customers rate items from this brand highly
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From the manufacturer

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TO MAKE A NAME FOR YOURSELF ON THE WATER, START BY PUTTING OURS ON YOUR BOAT.

You put your name on something you’re proud of. Since 1934, our name has been on the hardest working trolling motors, shallow water anchors, and other innovations that keep you on the water and in the action every day. That’s what we do. That’s who we are. And you’d better believe we’re proud to put our name on it.

Product Description

Monitor the voltage level and “state of charge” of any 12-volt battery with an LED display that indicates full, 2/3, 1/3 or 0 “state of charge". Easy to store anywhere.

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Minn Kota 1820087 MK-BM-1D Digital Battery Meter , Black

Minn Kota 1820087 MK-BM-1D Digital Battery Meter , Black

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Customer reviews

4.5 out of 5 stars
4.5 out of 5
581 global ratings

Customers say

Customers like the size, value, readability, accuracy and performance of the fishing equipment. For example, they mention it's small, portable, easy to use and worth the money. That said some complain about the length.

AI-generated from the text of customer reviews

49 customers mention44 positive5 negative

Customers like the performance of the battery tester. For example, they say it works great to check batteries before going fishing, is accurate, and easy to use. Some mention it's an excellent product and effective at testing a battery.

"...one of the originals and love them as they are quick and effective at testing a battery...." Read more

"Works great and very easy to use" Read more

"This works well, and the cables reach both contacts on my large Marine battery I believe they are shorter so you don't have to deal with the extra..." Read more

"Essential fishing accessory. Does the job just fine, thank you. Not waterproof, and it would be nice if the cord were a couple of inches longer." Read more

47 customers mention38 positive9 negative

Customers find the readability of the fishing equipment meter to be easy and convenient. They say it's simple to use and provides instant readings. Customers also say the bright colors make it easy to see.

"...Super simple to use it , place the device in the positive pole and the tine plug in the negative and it will show the charge ...." Read more

"Works great and very easy to use" Read more

"Quick and easy to read the battery charge on the battery. I already had one for my boat got another for the garage." Read more

"This is a simple device. It does register the charge. However, I have to tap the post just right to get it to read a full charge...." Read more

32 customers mention26 positive6 negative

Customers like the quality of the fishing equipment. They say it's a great tool, handy, and perfect for their use. They also say it’s dependable, quick, and easy to use. Some customers also mention that it’ll give you a quick read when you’re trolling.

"...Excellent quality also . Size is like half my palm so also very portable" Read more

"This little gadget is perfect for my use. Always on the boat, ready to be used to check my 12v battery status before leaving or when returning...." Read more

"...This is very helpful when you are trolling but it is also helpful so that I know how much time I have before my trailer battery needs to be charged...." Read more

"...Never seemed to really get how to read them. This one is foolproof. Nice to be able to quickly see how low battery is." Read more

28 customers mention23 positive5 negative

Customers like the value of the battery meter. They say it's worth the money, a reliable meter, and a cheap item to throw in your tackle box or boat glove box.

"good value" Read more

"Simple, effortless to use and priced right!..." Read more

"...All of these picky comments for a great price, so let's be real. It is a great product." Read more

"...My memory is not as good as it used to be! Worth the money as is in my opinion." Read more

27 customers mention25 positive2 negative

Customers are satisfied with the accuracy of the battery meter. They mention that it's a great device for a quick check of battery status, and it'll provide a digital readout of voltage and colored lights. The voltage indicator is much more precise, and is useful for quickly diagnosing car batteries. Overall, most are happy with the product's accuracy and ease of use.

"Good battery meter ,wish cord was longer for measuring in tight quarters" Read more

"...The device not only lists the voltage but it gives an idea of the amount of charge left...." Read more

"This meter does the job and appears to read the charge level accurately. The only downside is the lights showing the level of charge..." Read more

"...to 75% when in actuality it is at 90-95% S.O.C.. The voltage indicator is much more precise and lets you know where your battery is at...." Read more

19 customers mention19 positive0 negative

Customers are satisfied with the size of the fishing equipment. They mention it's compact, portable, and fits comfortably in the hand.

"...They are small, light, and effective. I recommend." Read more

"...Excellent quality also . Size is like half my palm so also very portable" Read more

"...Compact little unit just wish it had a longer wire to meet between the two terminals." Read more

"...is a bit of a pain but this device will always be handy due to it's small size. Used to have to connect my motor to get a readin." Read more

19 customers mention0 positive19 negative

Customers are dissatisfied with the length of the fishing equipment. They mention that the cord is too short, the negative wire is too long, and the coiled wire needs to be a bit longer for ease of use. Some say that the readouts are great, but the probe lead is too small for bigger deep cycle batteries. Overall, most are happy with the product's functionality.

"Cord could 2 - 3 inches longer. Hi" Read more

"...Apart from the kinda short negative test lead and the lack of a backlight on the voltage display (the reasons I didn't give a 5 star rating), this..." Read more

"...The wire is a bit short and needs to be stretched on a large battery. Not a big deal but one more inch would have been perfect..." Read more

"...Compact little unit just wish it had a longer wire to meet between the two terminals." Read more

11 customers mention2 positive9 negative

Customers are dissatisfied with the brightness of the fishing equipment. They mention that the lights are pretty bright, the LCD should be backlit, and the indicator lights are useless.

"...Apart from the kinda short negative test lead and the lack of a backlight on the voltage display (the reasons I didn't give a 5 star rating), this..." Read more

"...black sharpie pen to cover where the lights are, but those lights are still pretty bright!" Read more

"The light indicators are kind of useless...." Read more

"...to show %age charged, all I can see is a voltage and these annoying too bright lights as to how much voltage is in the battery, it is difficult to..." Read more

Top reviews from the United States

Tyler
5.0 out of 5 stars Love these little testers
Reviewed in the United States on January 11, 2024
Verified Purchase
Minn Kota has had these style testers on the market for years. I have owned one of the originals and love them as they are quick and effective at testing a battery. I bought another to keep in my boat and it works just as well as the original. They are small, light, and effective. I recommend.
One person found this helpful
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Purposeful
5.0 out of 5 stars Love it
Reviewed in the United States on June 3, 2023
Verified Purchase
This tiny device is great . I bought a battery for trolling motor same brand as this and needed to make sure I won't run out of juice while in the middle of the lake so I use it all the time to check the battery . Super simple to use it , place the device in the positive pole and the tine plug in the negative and it will show the charge . Excellent quality also . Size is like half my palm so also very portable
2 people found this helpful
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fishing buddy
5.0 out of 5 stars Very easy to use
Reviewed in the United States on October 18, 2023
Verified Purchase
Works great and very easy to use
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Frankb
4.0 out of 5 stars Minnkota battery meter
Reviewed in the United States on April 4, 2024
Verified Purchase
Good battery meter ,wish cord was longer for measuring in tight quarters
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Momo
5.0 out of 5 stars as advertised
Reviewed in the United States on April 9, 2023
Verified Purchase
good value
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d3
5.0 out of 5 stars Works great
Reviewed in the United States on August 25, 2023
Verified Purchase
Nice to not have to watch a YouTube video test a battery with a multimeter.
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Himhaw
5.0 out of 5 stars Nice tester
Reviewed in the United States on June 28, 2023
Verified Purchase
Quick and easy to read the battery charge on the battery. I already had one for my boat got another for the garage.
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larry boerste
5.0 out of 5 stars Works great. Yes
Reviewed in the United States on July 27, 2022
Verified Purchase
Cord could 2 - 3 inches longer. Hi
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Top reviews from other countries

Allan H
5.0 out of 5 stars Just What I Needed
Reviewed in Canada on July 9, 2021
Verified Purchase
This little Battery Meter is just what I needed. Something on the boat and while camping to keep all of my batteries in check. It's compact, super easy to use with both a digital meter and colored lights to indicate strength of battery. Only one minor issue and would suggest to better this is to the manufacturer is the length of the wire between the negative tip to the meter. Could be a couple of inches longer for the large deep cycle batteries. All in all very happy with this purchase. Highly recommend.
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Amazon Customer
5.0 out of 5 stars Nice and bright with large easy to read
Reviewed in Canada on May 16, 2023
Verified Purchase
What I expected.
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Amazon Customer
4.0 out of 5 stars Nice little unit
Reviewed in Canada on December 15, 2023
Verified Purchase
Only thing it didn’t tell you is if it could read lithium batteries level it does give you the voltage, but the battery level doesn’t work. Which is the reason I bought it.
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Amazon Customer
5.0 out of 5 stars Did its job and then sum
Reviewed in Canada on November 10, 2023
Verified Purchase
Very happy with it. Did its job
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Claude Francken
5.0 out of 5 stars Good to have
Reviewed in Canada on September 13, 2023
Verified Purchase
Hard to find but you need it to check your batteries
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