Updated: 02 Apr 2026

10 Best 12v battery monitor wifis of 2026

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Updated: 02 Apr 2026

#1

Best Choice

Victron Energy SmartShunt 500 amp Battery Monitor (Bluetooth)

9.9

Victron Energy

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Main highlights

The SmartShunt is equipped with Bluetooth, a VE.Direct port and a connection that can be used for: monitoring a second battery, midpoint monitoring or a temperature sensor

The SmartShunt is an all in one 500 amp battery monitor. Your phone can be connected and acts as a display.

The SmartShunt connects via Bluetooth to the VictronConnect App on your phone/tablet and you can read out all monitored battery parameters - like state of charge, time to go, historical info and more
#2

Best Value

Battery Monitor, 2.4 Inch HD Color LCD Battery Capacity Monitor, Bidirectional Detection Bluetooth Remote Monitoring Smart Shunt with 5m Communication Wire for RV, Car, Golf Cart

9.6

Cryfokt

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Main highlights

【Remote Monitoring】The battery monitor supports real time remote monitoring via WiFi, Bluetooth, and APP connectivity. Keep track of your battery status anytime, anywhere by staying connected to the battery monitor from your smartphone or other devices

【Multiple Parameter Measurements】This battery monitor can measure voltage, current, power, charge discharge capacity, watt hour, time, and other physical parameters. Set parameters to enable functions such as overvoltage, undervoltage, overcurrent, overpower, overtemperature, and time limited protections

【Enhanced User Interface】Bluetooth battery monitor featuring 2.4 inch HD color LCD screen with optimized interface, offering larger, clearer text. With dark and light mode options, ensuring easy visibility of information. The silicone key provides smoothly operations, fast response, and comfortable touch
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#3

MAEZOE Upgrade IPX7 Waterproof Battery Monitor, 12V 24V 36V 48V 60V 72V Digital Display Battery Capacity Tester with Buzzer Alarm and Temperature for Car, Golf Cart, RV, Boat

9.5

MAEZOE

-15%

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Main highlights

【Wide Application Compatibility】 – Suitable for testing battery voltage and capacity of various vehicles and devices, including electric motorcycles, motorcycles, golf carts, cars, boats, marine, RVs, and more.

【Supports Multiple Battery Types】 – Compatible with 7-100V batteries such as Ternary Lithium, Lead-Acid, AGM, and LiFePO4 batteries. Default setting supports 12V Lead-Acid batteries for versatile use.

【Reliable Protection & Durability】 – Features IPX7 waterproof rating, dustproof shell, reverse connection protection, and CE certification, ensuring safe and durable performance for indoor and outdoor use.

-15%
#4

MAEZOE Upgrade IPX7 Waterproof Battery Monitor, 12V 24V 36V 48V 60V 72V Digital Display Battery Capacity Tester with Buzzer Alarm and Temperature for Car, Golf Cart, RV, Boat

9.4

MAEZOE

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Main highlights

【Wide Application Compatibility】 – Suitable for testing battery voltage and capacity of various vehicles and devices, including electric motorcycles, motorcycles, golf carts, cars, boats, marine, RVs, and more.

【Supports Multiple Battery Types】 – Compatible with 7-100V batteries such as Ternary Lithium, Lead-Acid, AGM, and LiFePO4 batteries. Default setting supports 12V Lead-Acid batteries for versatile use.

【Reliable Protection & Durability】 – Features IPX7 waterproof rating, dustproof shell, reverse connection protection, and CE certification, ensuring safe and durable performance for indoor and outdoor use.
#5

QUICKLYNKS BM2 Bluetooth Battery Monitor 12V Car Battery Tester for Lead Acid Battery, LowVolt Alarm for All 12 Volts Solar Power Systems/RVs/Motorcycles/Boats/Cars Compatible with iPhone Android

9.2

KDator

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Main highlights

Receive notification of battery conditions automatically when enter Bluetooth range.

It compatible with all 12-volt vehicle Lead acid batteries;Voltage: 9-16V With Bluetooth 4.0;

Free app for both iOS & Android, IOS: IOS 7.1 and Later Available: Android 4.3 and Later;
#6

WiFi Battery Monitor with Shunt, 10-100V 0-50A Bidirectional Detection Remote Monitoring Battery Monitor with 2.4 Inch Color LCD Screen

9.0

Jectse

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Main highlights

[Wide Battery Compatibility] Compatible with various types of batteries including VRLA, LFP, Li Ion, NI MH, and other battery types within the voltage range of 10 to 100V.

[Multiple Parameter Measurements] This battery monitor can measure voltage, current, power, charge discharge capacity, watt hour, time, and other physical parameters. Set parameters to enable functions such as overvoltage, undervoltage, overcurrent, overpower, overtemperature, and time limited protections.

[Built in Reminder] With a built in reminder, you can set low capacity or low voltage reminders. Once the values fall below the preset levels, the buzzer will sound immediately, accompanied by a pop up reminder, allowing you to stay informed of the device status.
#7

Quicklynks Battery Monitor BM2 Wireless Car Battery Tester 12V Battery Load Tester Bluetooth 4.0 Digital Battery Analyzer Battery Voltage Charging and Cranking System Monitor for Android & iOS

8.9

Quicklynks

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Main highlights

Receive notification of battery conditions automatically when enter Bluetooth range.

It compatible with all 12-volt vehicle batteries;Voltage: 9-16V With Bluetooth 4.0;

Free app for both iOS & Android, IOS: IOS 7.1 and Later Available: Android 4.3 and Later;
#8

Oricom BSM888X 12V/24V Battery Sense Monitor - Battery Sense App, Smartphone, 12/24 Volt Batteries, IP65 Ingress Protection, Short-Circuit and Reverse Polarity Protection, Car

8.8

ORICOM

-19%

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Main highlights

Wide Compatibility: This battery sense monitor is compatible with both 12V and 24V battery systems, making it suitable for a wide range of vehicles.

Real-Time Battery Monitoring: The Oricom BSM888X allows you to monitor the your vehicle's battery in real-time. Stay informed about the battery's condition and take necessary actions to prevent potential issues.

Compact and Portable: With its compact size and lightweight design, the BSM888X is highly portable and can be easily moved between vehicles. Keep it in your glove compartment or toolbox for convenient battery monitoring wherever you go.

-19%
#9

Generic Battery Monitor with Shunt, 10-100V 0-50A Bluetooth Remote Monitoring Battery Tester with High and Low Voltage Reminder, for RV Solar Marine Car Truck Motorcycle, Gel

8.7

Generic

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Main highlights

[Wide Battery Compatibility] Compatible with various types of batteries including VRLA, LFP, Li Ion, NI MH, and other battery types within the voltage range of 10 to 100V.

[Remote Monitoring] The battery monitor supports real time remote monitoring via WiFi, Bluetooth, and APP connectivity. Keep track of your battery status anytime, anywhere by staying connected to the battery monitor from your smartphone or other devices.

[Built in Reminder] With a built in reminder, you can set low capacity or low voltage reminders. Once the values fall below the preset levels, the buzzer will sound immediately, accompanied by a pop up reminder, allowing you to stay informed of the device status.
#10

12V Battery Monitor – Digital Battery Capacity Tester (12-72V Adjustable) – Wide Compatibility with Voltage, Percentage & Temperature Display – for Golf Carts, Cars, Boats, Marine, RV, Solar Systems

8.6

Kivner

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Main highlights

Multi-Functional Battery Monitor: This battery capacity tester supports 10-100V batteries (12V/24V/36V/48V/60V/72V), suitable for lithium, lead-acid, LiFePO4, and NiMH batteries. Default mode is for lead-acid batteries, with one-key switching for other types.

Durable & Protective Design: Equipped with a dustproof and splash-proof protective shell, along with reverse connection protection, making it safe and reliable for various outdoor applications.

Accurate Real-Time Data: Features a clear LCD screen to display battery capacity, voltage, and temperature. Voltage accuracy is 0.1~0.5%, and temperature accuracy is 0.5~1℃, ensuring precise monitoring of your battery’s health.

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10 Best 12v battery monitor wifis of 2026

Victron Energy SmartShunt 500 amp Battery Monitor (Bluetooth)

9.9

Main highlights

Battery Monitor, 2.4 Inch HD Color LCD Battery Capacity Monitor, Bidirectional Detection Bluetooth Remote Monitoring Smart Shunt with 5m Communication Wire for RV, Car, Golf Cart

9.6

Main highlights

MAEZOE Upgrade IPX7 Waterproof Battery Monitor, 12V 24V 36V 48V 60V 72V Digital Display Battery Capacity Tester with Buzzer Alarm and Temperature for Car, Golf Cart, RV, Boat

9.5

Main highlights

MAEZOE Upgrade IPX7 Waterproof Battery Monitor, 12V 24V 36V 48V 60V 72V Digital Display Battery Capacity Tester with Buzzer Alarm and Temperature for Car, Golf Cart, RV, Boat

9.4

Main highlights

QUICKLYNKS BM2 Bluetooth Battery Monitor 12V Car Battery Tester for Lead Acid Battery, LowVolt Alarm for All 12 Volts Solar Power Systems/RVs/Motorcycles/Boats/Cars Compatible with iPhone Android

9.2

Main highlights

WiFi Battery Monitor with Shunt, 10-100V 0-50A Bidirectional Detection Remote Monitoring Battery Monitor with 2.4 Inch Color LCD Screen

9.0

Main highlights

Quicklynks Battery Monitor BM2 Wireless Car Battery Tester 12V Battery Load Tester Bluetooth 4.0 Digital Battery Analyzer Battery Voltage Charging and Cranking System Monitor for Android & iOS

8.9

Main highlights

Oricom BSM888X 12V/24V Battery Sense Monitor - Battery Sense App, Smartphone, 12/24 Volt Batteries, IP65 Ingress Protection, Short-Circuit and Reverse Polarity Protection, Car

8.8

Main highlights

Generic Battery Monitor with Shunt, 10-100V 0-50A Bluetooth Remote Monitoring Battery Tester with High and Low Voltage Reminder, for RV Solar Marine Car Truck Motorcycle, Gel

8.7

Main highlights

12V Battery Monitor – Digital Battery Capacity Tester (12-72V Adjustable) – Wide Compatibility with Voltage, Percentage & Temperature Display – for Golf Carts, Cars, Boats, Marine, RV, Solar Systems

8.6

Main highlights

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