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Roadi

Battery Monitor BM2 for Car RV 12V Battery/Antigravity Batteries with Bluetooth 4.0 Wireless Battery Sense Tester Battery Load Tester Compatible with iPhone Apple Android Phone Free App

  • Based on 232 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Aug 8
Order within 2 hours and 31 minutes
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Size: Small


Features

  • Easy to InstallMake car battery tester connect with battery directly. It provides a quick reading to determine if a vehicle battery needs a jump or replacing and also the alternator output status. The power consumption of the product is only 1.5mAh, which has little effect on the car battery. Note: Be sure to open the app first, and then connect the bluetooth in the app.
  • Automatic Reminder Function Battery tester 12vs app will send the battery status to the phone notification bar when enter Bluetooth range.
  • Easy to OperateBattery Monitors App is Battery Monitor BM2. Please scan machine backup or user manual scan code to download software. Connecting Bluetooth and open app, no code, you can know battery or battery loads Condition and check charging and starting system, list time of each driving.
  • Safe and Reliable-- Battery load tester tells you everything about the battery: voltage, charge,cranking power, Engine starting detect automatically, etc.
  • CompatibilityBattery Monitor is perfect for car battery tester and RV Battery Monitor,every day vehicle.Compatible with all 12-volt vehicle batteries; Voltage: 9-16V, Connect with battery directly, NO CODE, free app for iOS & Android users IOS: IOS 7.1 and later Available: Android 4.0 and later.

Package Dimensions ‏ : ‎ 4.29 x 3.03 x 0.87 inches; 2.05 Ounces


Date First Available ‏ : ‎ March 22, 2022


Manufacturer ‏ : ‎ Roadi


Country of Origin ‏ : ‎ China


Best Sellers Rank: #93,623 in Automotive (See Top 100 in Automotive) #120 in Battery Testers


#120 in Battery Testers:


Customer Reviews: 4.1 out of 5 stars 232 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Aug 8

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Battery monitoring
Size: Small
Once installed which was very simple, it found my Bluetooth on my phone and now I can keep an eye on that through my cell phone. So never need to jump it unless the phone tells me I’m low and I should power it up.
Reviewed in the United States 🇺🇸 on March 18, 2023 by Kim
    • works work too bad it dies after 6 mouth.
Size: Small
to bad only lasted 6 mouth and no way to contact the manufacture FOR WARANTY. The manufactures told me to ask the Amazon for a re fund. No re fund to date
Reviewed in the United States 🇺🇸 on February 24, 2023 by JORGE L OTERO
    • Uses Very Little Power
Size: Small
I'm using this in a battery box so I can measure how much power the battery has. It's a lithium battery, which means the voltage is higher, but the meter still broadcasts the bluetooth sufficient that I can get the signal through a wall, and it keeps records up to 15 days, which is helpful. Definitely will be ordering more. ... show more
Reviewed in the United States 🇺🇸 on January 6, 2023 by Amazon Customer
    • Easy and accurate but drains the battery
Size: Small
This was simple to install and download the app and gives accurate updates but I seriously doubt it draws "only 1.5 mAh". The battery in my camper typically holds 100% of its charge for weeks at a time, as soon as I attached this meter, it lost almost 1% of charge per day. I now have to disconnect it between uses which defeats the ability to have the information readily available through the app. ... show more
Reviewed in the United States 🇺🇸 on July 30, 2022 by A&E in NOLA
    • Works as expected
Size: Small
It connect to the battery directly. The App, Battery Monitor BM2, works with my iPhone 12 paired via Bluetooth. It can send the battery status to the phone. It’s useful if the vehicle battery needs a jump or replace. It also shows the the voltage, charge, power, etc. It’s compatible with my Toyota Camry and Dodge Caravan. ... show more
Reviewed in the United States 🇺🇸 on December 8, 2022 by Paula
    • Not much bluetooth strength
Size: Small
What I was hoping to use this for won't work. I have a seldom driven truck with a dashcam which runs all the time. I am having dead battery issues after the truck sits for awhile. I was hoping that I could install this at the battery with the truck in the driveway and be able to monitor the battery in the house. While I can remotely see the battery voltage on my phone, I have to be within 8 feet of the truck for the bluetooth to connect. If I have to stand next to the truck, I might as well look through the window at the volt meter I added to the dash. Maybe if you have an application where the Battery Monitor doesn't have to be behind metal you might have better results. ... show more
Reviewed in the United States 🇺🇸 on August 9, 2022 by GRBrooke
    • Installed on my Briggs house standby generator to watch battery. Works as is should
Size: Small
Review Image by Guardian Shield GLASH Guardian Shield GLASH
Reviewed in the United States 🇺🇸 on October 26, 2022 by Guardian Shield GLASH Guardian Shield GLASH
    • Had some issues.
Size: Small
Didn’t like the charging test at low and high idle. Required to shut off the car and sometimes it doesn’t pick up. Try to test with the car running and the ap tells you to start the car? Very touchy with the timing.
Reviewed in the United States 🇺🇸 on August 6, 2022 by John Horrocks

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