---
product_id: 60212392
title: "Digital Car Voltmeter 12V ~ 24V – LED Display Battery Voltage Tester, Plug into Cigarette Lighter Socket, Portable Auto Battery Monitor for Cars, Trucks & SUVs"
brand: "familymall"
price: "£9.26"
currency: GBP
in_stock: true
reviews_count: 13
category: "Family Mall"
url: https://www.desertcart.co.uk/products/60212392-digital-car-voltmeter-12v-24v-led-display-battery-voltage-tester
store_origin: GB
region: United Kingdom
---

# Bright LED digital display 12V & 24V dual compatibility Plug & play via cigarette lighter Digital Car Voltmeter 12V ~ 24V – LED Display Battery Voltage Tester, Plug into Cigarette Lighter Socket, Portable Auto Battery Monitor for Cars, Trucks & SUVs

**Brand:** familymall
**Price:** £9.26
**Availability:** ✅ In Stock

## Summary

> 🔌 Stay Powered, Stay Ahead — Never Get Caught Off Guard!

## Quick Answers

- **What is this?** Digital Car Voltmeter 12V ~ 24V – LED Display Battery Voltage Tester, Plug into Cigarette Lighter Socket, Portable Auto Battery Monitor for Cars, Trucks & SUVs by familymall
- **How much does it cost?** £9.26 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/60212392-digital-car-voltmeter-12v-24v-led-display-battery-voltage-tester)

## Best For

- familymall enthusiasts

## Why This Product

- Trusted familymall brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Always Ready:** Pocket-sized and portable, this voltmeter is your on-the-go battery guardian for peace of mind.
- • **Day & Night Visibility:** High-visibility LED display ensures you can monitor battery status clearly anytime, anywhere.
- • **Instant Battery Health Check:** Plug into your cigarette lighter socket and get real-time voltage readings—no hood opening required.
- • **Prevent Unexpected Breakdowns:** Continuous voltage monitoring helps you catch battery issues before they leave you stranded.
- • **Universal Vehicle Compatibility:** Seamlessly works with both 12V cars and 24V trucks/SUVs for versatile monitoring across your fleet.

## Overview

The Digital Car Voltmeter is a compact, plug-and-play device that monitors your vehicle’s battery voltage in real time via the cigarette lighter socket. Compatible with both 12V and 24V systems, it features a bright LED display for easy reading day or night. Designed to prevent unexpected battery failures, it’s an essential tool for drivers, truck owners, and DIY enthusiasts who want instant, accurate battery health insights without the hassle of opening the hood.

## Description

Keep track of your vehicle’s battery condition with this Digital Car Voltmeter 12V/24V. Unlike traditional methods that require opening the hood, this device simply plugs into the cigarette lighter socket, giving you an instant and accurate voltage reading. The bright LED digital display makes it easy to check your battery status at a glance, whether during the day or at night. Compatible with both 12V cars and 24V trucks/SUVs, this car battery voltage tester ensures you always know when your battery has sufficient charge. Perfect for daily drivers, truck owners, and DIY enthusiasts, this portable auto battery monitor provides real-time voltage monitoring to help protect your battery and engine from unexpected failures. Compact, reliable, and easy to carry, it’s the essential tool for battery health check-ups. Product Details: Digital display for showing the car power bright LED light, makes them easy to read Power Supply via cigarette lighter Städige Monitoring the battery voltage, Grow and protects battery and motor Which batteries is securely: Will when the engine tarnish (not driving), the LED display: Between 13.5 to 14.5 (12 V car) Between 26.0 to 28.0 (24 V car) When the engine is Stoppet and nothing, the LED indicators: Greater than 12.0 (12 V car) or 24.0 (24 V car) Box Contents: 1 x LED Digital Voltmeter Voltage Messe

Review: Great handy device - Had a flat battery in November 2022 due to the -8c weather, got the car jump started, taken it for battery test at local garage, they couldn't tell if the battery was recovering or not so failed the test but told me to drive the car to see if it would charge up and re-test it, I took it back to the garage they are saying it no longer shows as failed but charge and re-test,, it's getting tricky to determine if the battery is recovering especially with the winter we are having and the cold snaps and it being xmas and the car sitting on the drive. so I saw this item, which is fantastic, so small, clear display and it is showing the problem I have with the battery and that by driving about I am getting some improvements in charge and i'm able to track those improvements. Before I did this video, Car switched off , shows 11.7v, |I drove about 11 miles to Asda, tested it and it was 11.9v, went round the shop for 1 hour and half, retested in the car park before switching on the car, video is shot in rugby Asda car park. Got home, 12.1v, with engine switched off, so there is hope if I take it for another few spins. A new car AGM battery for Skoda Octavia 2017 models costs a whopping £358! so I'm doing all the testing I can to see if I can avoid replacing a battery which is just over 5 years old. What I like about this device it shows you clearly in digital form the voltage, and if you have the engine on you can see if your alternator is working as it should show this from 13v to 14.8v. Such an inexpensive useful item, don't need to get the hood open and a meter plugged in or use one of those devices that just shows lights, this is showing me exactly what I need to know. I have a blackvue magic pro / dashcam in the car which is designed to keep the cam powered when the engine is off until the voltage drops below and certain level and I can verify this is all happening while watching the this unit's display. Must buy for anycar!, answers questions like does my cigarette lighter stayed powered when the car is off, answer for mine is yes it does, so don't leave it plugged in when the engine is off and forget about it!.
Review: worth having - i bought this as car was nit starting after a couple of days,i suspected the battery was no good,this tester proved this,as it showed the charge was ok when car was running but the battery would not hold charge if left,so i bought a new battery,this tester’s proved its worth again as new battery was charging as it should but the car was overcharging it when running,proving new battery had to be coded to the car,once done all good,its so easy to use just plug into lighter socket,no need to lift bonnet and use conventional tester,can also leave in when car running so can check alternator is working ok,for the price worth buying

## Features

- 【Easy Plug & Play Design】Simply plug this digital car voltmeter into the cigarette lighter socket for an instant reading of your vehicle’s battery voltage.
- 【12V & 24V Compatibility】Works with both 12V cars and 24V trucks/SUVs, making it a versatile battery voltage tester for multiple vehicles.
- 【Bright LED Digital Display】Features a clear, high-visibility LED screen that allows easy reading of your car battery status, even in daylight.
- 【Real-Time Battery Monitoring】Continuously monitor your car battery health to prevent unexpected breakdowns and protect your engine and electronics.
- 【Compact & Portable】This small car battery monitor fits in your pocket and is always ready for quick voltage checks—no need to open the hood.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00DI4ZS7U |
| Best Sellers Rank | 3,104 in Automotive ( See Top 100 in Automotive ) 5 in Car Battery Testers |
| Brand | FamilyMall |
| Colour | Black |
| Compatible Devices | Cars, Trucks, SUVs |
| Country Of Origin | China |
| Customer Reviews | 4.4 out of 5 stars 481 Reviews |
| Manufacturer | FamilyMall |
| Manufacturer Part Number | FM-CarChargerVtester-01 |
| Measurement Type | Voltmeter |
| Min. Operating voltage | 8 Volts |
| Minimum Operating Voltage | 8 Volts |
| Model Number | ForepinDELS5142 |
| Power Source | DC Power Supply |
| Power source | DC Power Supply |
| Specification Met | CE, EN 61010-1 |
| Specification met | CE, EN 61010-1 |
| Style | Modern |
| Style Name | Modern |
| UPC | 508966050942 |
| Unit Count | 1.0 count |
| Upper Temperature Rating | 85 Degrees Celsius |

## Product Details

- **Brand:** FamilyMall
- **Colour:** Black
- **Min. Operating voltage:** 8 Volts
- **Power source:** DC Power Supply
- **Style:** Modern

## Images

![Digital Car Voltmeter 12V ~ 24V – LED Display Battery Voltage Tester, Plug into Cigarette Lighter Socket, Portable Auto Battery Monitor for Cars, Trucks & SUVs - Image 1](https://m.media-amazon.com/images/I/41eKn0uxqjL.jpg)
![Digital Car Voltmeter 12V ~ 24V – LED Display Battery Voltage Tester, Plug into Cigarette Lighter Socket, Portable Auto Battery Monitor for Cars, Trucks & SUVs - Image 2](https://m.media-amazon.com/images/I/41g8O3UQRkL.jpg)
![Digital Car Voltmeter 12V ~ 24V – LED Display Battery Voltage Tester, Plug into Cigarette Lighter Socket, Portable Auto Battery Monitor for Cars, Trucks & SUVs - Image 3](https://m.media-amazon.com/images/I/41skc-z6IqL.jpg)
![Digital Car Voltmeter 12V ~ 24V – LED Display Battery Voltage Tester, Plug into Cigarette Lighter Socket, Portable Auto Battery Monitor for Cars, Trucks & SUVs - Image 4](https://m.media-amazon.com/images/I/51M4I08V1xL.jpg)
![Digital Car Voltmeter 12V ~ 24V – LED Display Battery Voltage Tester, Plug into Cigarette Lighter Socket, Portable Auto Battery Monitor for Cars, Trucks & SUVs - Image 5](https://m.media-amazon.com/images/I/51ujFngMsPL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great handy device
*by D***. on 29 December 2022*

Had a flat battery in November 2022 due to the -8c weather, got the car jump started, taken it for battery test at local garage, they couldn't tell if the battery was recovering or not so failed the test but told me to drive the car to see if it would charge up and re-test it, I took it back to the garage they are saying it no longer shows as failed but charge and re-test,, it's getting tricky to determine if the battery is recovering especially with the winter we are having and the cold snaps and it being xmas and the car sitting on the drive. so I saw this item, which is fantastic, so small, clear display and it is showing the problem I have with the battery and that by driving about I am getting some improvements in charge and i'm able to track those improvements. Before I did this video, Car switched off , shows 11.7v, |I drove about 11 miles to Asda, tested it and it was 11.9v, went round the shop for 1 hour and half, retested in the car park before switching on the car, video is shot in rugby Asda car park. Got home, 12.1v, with engine switched off, so there is hope if I take it for another few spins. A new car AGM battery for Skoda Octavia 2017 models costs a whopping £358! so I'm doing all the testing I can to see if I can avoid replacing a battery which is just over 5 years old. What I like about this device it shows you clearly in digital form the voltage, and if you have the engine on you can see if your alternator is working as it should show this from 13v to 14.8v. Such an inexpensive useful item, don't need to get the hood open and a meter plugged in or use one of those devices that just shows lights, this is showing me exactly what I need to know. I have a blackvue magic pro / dashcam in the car which is designed to keep the cam powered when the engine is off until the voltage drops below and certain level and I can verify this is all happening while watching the this unit's display. Must buy for anycar!, answers questions like does my cigarette lighter stayed powered when the car is off, answer for mine is yes it does, so don't leave it plugged in when the engine is off and forget about it!.

### ⭐⭐⭐⭐⭐ worth having
*by G***W on 2 November 2023*

i bought this as car was nit starting after a couple of days,i suspected the battery was no good,this tester proved this,as it showed the charge was ok when car was running but the battery would not hold charge if left,so i bought a new battery,this tester’s proved its worth again as new battery was charging as it should but the car was overcharging it when running,proving new battery had to be coded to the car,once done all good,its so easy to use just plug into lighter socket,no need to lift bonnet and use conventional tester,can also leave in when car running so can check alternator is working ok,for the price worth buying

### ⭐⭐⭐⭐ functional but not accurate - but expected for the price
*by A***R on 6 July 2025*

For what is it, it works and its okay, I've checked it vs a multimeter and it's about -ve 0.3v under (meter reading 12.5v, this reading 12.2/12.3v) - but I wonder if part of this is voltage drop from the battery to the plug. So if you are getting it for accuarcy then be advised, but also for £6 it's what I'd expect - overall okay of kit and if anything the low voltage reading can act as a safety margin so you don't drain your battery too much.

## Frequently Bought Together

- 12-24 V LED Cigarette Lighter Car Battery Tester Voltage Display Voltmeter
- AA 12 V Car Solar Battery Trickle Charger, AA1432 - for Vehicles and Caravans - Battery Connectors Included, Solar 4.8W, Black
- NOCO Boost Plus GB40 1000A UltraSafe Car Jump Starter, Jump Starter Power Pack, 12V Battery Booster, Portable Powerbank Charger, and Jump Leads for up to 4.0-Liter Petrol and 3.0-Liter Diesel Engines

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-17*