---
product_id: 408395117
title: "12V Car Battery Monitor Tester BM2 bluetooth 4.0 Device Battery Diagnostic Too for 6V-20V Vehicle Compatible with Android iOS"
brand: "dollatek"
price: "23324 Ft"
currency: HUF
in_stock: true
url: https://www.desertcart.hu/products/408395117-12v-car-battery-monitor-tester-bm2-bluetooth-4-0-device
store_origin: HU
region: Hungary
---

# 35 days data storage 12V-20V battery range Bluetooth 4.0 connectivity 12V Car Battery Monitor Tester BM2 bluetooth 4.0 Device Battery Diagnostic Too for 6V-20V Vehicle Compatible with Android iOS

**Brand:** dollatek
**Price:** 23324 Ft
**Availability:** ✅ In Stock

## Summary

> 🔋 Never get stranded—your car’s health in your pocket!

## Quick Answers

- **What is this?** 12V Car Battery Monitor Tester BM2 bluetooth 4.0 Device Battery Diagnostic Too for 6V-20V Vehicle Compatible with Android iOS by dollatek
- **How much does it cost?** 23324 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/408395117-12v-car-battery-monitor-tester-bm2-bluetooth-4-0-device)

## Best For

- dollatek enthusiasts

## Why This Product

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

## Key Features

- • **Long-Term Data Tracking:** Monitor your battery’s history with up to 35 days of stored diagnostic data, even offline.
- • **Universal Compatibility:** Seamlessly works with all 12V vehicle batteries and supports both iOS and Android apps.
- • **Real-Time Battery Alerts:** Stay ahead with instant Bluetooth notifications on your vehicle’s battery health.
- • **Robust Safety Protections:** Built-in short-circuit, reverse connection, and reverse protection safeguard both device and battery.
- • **Comprehensive Engine Diagnostics:** Auto-check cranking and starting systems every time you ignite for full performance insights.

## Overview

The DollaTek 12V Car Battery Monitor BM2 uses Bluetooth 4.0 to deliver real-time battery health updates and engine diagnostics for 6V-20V vehicles. It stores up to 35 days of data, features advanced safety protections, and is compatible with Android and iOS, making it an essential smart tool for proactive vehicle maintenance.

## Description

DollaTek 12V Car Battery Monitor Tester BM2 bluetooth 4.0 Device Battery Diagnostic Too for 6V-20V Vehicle Compatible with Android iOS

## Features

- Receive real-time notifications of battery conditions when within Bluetooth range, ensuring you are always aware of your vehicle's battery health.
- Automatically check the vehicle's cranking system and starting system while the engine is starting, providing a comprehensive analysis of the battery's performance.
- Store data in the device for up to 35 days, allowing you to track and monitor the battery's history even when out of sync with the app.
- Built-in Short-Circuit & Reverse Protection, as well as Reverse Connection Protection, ensures the safety of the device and your vehicle's battery.
- Compatible with all 12V vehicle batteries, the Bluetooth Battery Monitor is versatile and perfect for camper vans, leisure vehicles, and everyday cars. The easy-to-use device is equipped with a free app for both iOS and Android users, making it simple to monitor your battery's condition and performance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | DollaTek |
| Part number | ELA21978 |
| Item Weight | 90 g |
| Package Dimensions | 18.3 x 14.2 x 2.9 cm; 90 g |
| Item model number | DT-12VBT01 |
| Colour | Black |
| Style | Modern |
| Power source type | Battery Powered |
| Item Package Quantity | 1 |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** DollaTek
- **Power source:** Battery Powered
- **Style:** Modern
- **Colour:** Black
- **Min. Operating voltage:** 6 Volts

## Images

![12V Car Battery Monitor Tester BM2 bluetooth 4.0 Device Battery Diagnostic Too for 6V-20V Vehicle Compatible with Android iOS - Image 1](https://m.media-amazon.com/images/I/61fqtCH9sjL.jpg)

## Frequently Bought Together

- DollaTek 12V Car Battery Monitor Tester BM2 bluetooth 4.0 Device Battery Diagnostic Too for 6V-20V Vehicle Compatible with Android iOS
- Car Jump Starter, FLYLINKTECH 4000A Peak 12V Portable Car Battery Jump Starter Booster (up to 9.0L Gas Or 8.5L Diesel Engine), Power Bank with LED Flashlight, IP67

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**Shop now:** [https://www.desertcart.hu/products/408395117-12v-car-battery-monitor-tester-bm2-bluetooth-4-0-device](https://www.desertcart.hu/products/408395117-12v-car-battery-monitor-tester-bm2-bluetooth-4-0-device)

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-01-23*