---
product_id: 787919057
title: "BM300 12V Battery Monitor, Bluetooth 4.0 Automotive Voltmeter with Charging, Cranking System Test & Alarm - Compatible for Solar Power Systems, RVs, Motorcycles, Boats, Cars, and Trucks"
brand: "ancel"
price: "3971209₫"
currency: VND
in_stock: true
url: https://www.desertcart.vn/products/787919057-bm300-12v-battery-monitor-bluetooth-4-0-automotive-voltmeter-charging
store_origin: VN
region: Vietnam
---

# 99.5% voltage accuracy Bluetooth 4.0 wireless range 33ft 12V battery compatibility BM300 12V Battery Monitor, Bluetooth 4.0 Automotive Voltmeter with Charging, Cranking System Test & Alarm - Compatible for Solar Power Systems, RVs, Motorcycles, Boats, Cars, and Trucks

**Brand:** ancel
**Price:** 3971209₫
**Availability:** ✅ In Stock

## Summary

> 🔋 Power up your ride with smart battery mastery!

## Quick Answers

- **What is this?** BM300 12V Battery Monitor, Bluetooth 4.0 Automotive Voltmeter with Charging, Cranking System Test & Alarm - Compatible for Solar Power Systems, RVs, Motorcycles, Boats, Cars, and Trucks by ancel
- **How much does it cost?** 3971209₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/787919057-bm300-12v-battery-monitor-bluetooth-4-0-automotive-voltmeter-charging)

## Best For

- ancel enthusiasts

## Why This Product

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

## Key Features

- • **Ultra-Low Power Drain:** Consumes just 1.0-1.5mA, so it stays connected without draining your battery.
- • **Built for Safety & Durability:** Reverse polarity protection and fire-resistant housing ensure safe, long-lasting performance.
- • **Comprehensive Battery Insights:** Analyze 30 days of voltage history and trip data to optimize battery life and avoid costly replacements.
- • **Effortless Bluetooth Monitoring:** Track your battery’s health wirelessly up to 33 feet away—no more guesswork or manual checks.
- • **Stay Ahead with Real-Time Alerts:** Instant mobile notifications keep you in the know before battery issues escalate.

## Overview

The ANCEL BM300 is a precision 12V battery monitor featuring Bluetooth 4.0 connectivity for seamless real-time tracking of voltage, cranking, and charging system health. Designed for vehicles and solar systems, it offers ultra-low power consumption, advanced safety protections, and detailed 30-day performance analytics via a free mobile app—empowering proactive battery maintenance and preventing unexpected failures.

## Description

BM300 12V Battery Monitor, Bluetooth 4.0 Automotive Voltmeter with Charging, Cranking System Test & Alarm - Compatible for Solar Power Systems, RVs, Motorcycles, Boats, Cars, and Trucks

## Features

- ESSENTIAL TOOL FOR YOUR GARAGE: Keep your car battery in top condition and protect it from the effects of disuse and harsh weather with the BM300. This smart battery monitor tracks important metrics like voltage, cranking performance, charging system health, and travel history. With real-time alerts and continuous monitoring, it helps you take proactive action to keep your battery in peak condition and avoid expensive replacements
- SEAMLESS MONITORING VIA BLUETOOTH: No more staying close to the monitor! This compact 3.2-ounce battery monitor allows you to easily track real-time battery data from inside your car or up to 33 feet away. Whether it’s rainy, sunny, or snowy, it keeps you connected with ease. Note: Bluetooth connectivity may be affected by extreme cold or obstacles. For optimal performance, use it in a clear, open area with suitable temperatures
- EASY TO USE: Install once and permanently attach to your battery, saving the hassle of repetitive installation. Access battery health data directly from your phone and enjoy real-time monitoring as long as the APP is on. In addition, with an average power consumption of only 1.5mA that it can be almost unnoticeable. So you don't have to worry about the BM300 draining your battery by being attached to it all the time (Application can monitor only one device at once)
- QUALITY WITH SAFETY FIRST: Built-in electrical overload circuit breaker with reverse polarity protection function ensures user safety during operation. The fire-resistant housing enhances high-temperature durability for added safety. In addition to these safety features, it also boasts exceptional alarm functionality. Which will notify you via the APP when the battery encounters malfunctions, abnormal voltage or power, alleviating your concerns in this regard
- HIGH ACCURACY: The copper construction on the connector ensures superior conductivity, while the built-in smart chip delivers readings with over 99.5% accuracy. Note: To ensure accurate results, please verify the correct internal and external conditions and temperature (above/below 0°C)
- WIDE APPLICATION: The bluetooth battery monitor compatibles with all 12V 100-2000CCA batteries, including regular flooding, AGM flat, AGM spiral, GEL and EFB batteries for cars, trucks, hybrids, suv's, boats, RV's, motorcycles, and even solar power systems. It can meet the needs of batteries of different models
- TRACK & MONITOR BATTERY PERFORMANCE: Use the “ Trip” function to observe the monitored output curve of each battery check and gain insight into usage patterns over the past 30 days. It records every instance of power consumption, giving you a comprehensive overview of battery performance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | ANCEL |
| Power Source | Battery Powered |
| Style | Battery Monitor |
| Color | Black |
| Item dimensions L x W x H | 4.33 x 0.98 x 5.12 inches |
| Min. Operating Voltage | 6 Volts |
| Upper Temperature Rating | 85 Degrees Celsius |
| Measurement Type | Voltmeter |
| Maximum Operating Voltage | 12 Volts |
| Manufacturer | ANCEL |
| Item Weight | 2.39 ounces |
| Product Dimensions | 4.33 x 0.98 x 5.12 inches |
| Country of Origin | China |
| Item model number | BM300 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | BM300 |
| Voltage | 12 Volts |

## Product Details

- **Brand:** ANCEL
- **Power source:** Battery Powered
- **Style:** Battery Monitor
- **Colour:** Black
- **Item dimensions L x W x H:** 11 x 2.5 x 13 centimeters

## Images

![BM300 12V Battery Monitor, Bluetooth 4.0 Automotive Voltmeter with Charging, Cranking System Test & Alarm - Compatible for Solar Power Systems, RVs, Motorcycles, Boats, Cars, and Trucks - Image 1](https://m.media-amazon.com/images/I/61rjrDtzapL.jpg)

## Questions & Answers

**Q: Is it possible to see how much power the battery has used ?**
A: ANCEL BM300 has a 30-day data historical record, which allows you to check how much electricity has been used through each record.

**Q: Can Android or iOS device directly monitor local data ?**
A: iOS devices can monitor directly, while Android devices require authorization.

**Q: What about the stability of Bluetooth connection ?**
A: Enable location access within a 33 ft range of the device, allowing continuous monitoring of battery data on your phone.

**Q: Can multiple batteries be monitored at the same time?**
A: No, BM300 can only monitor one battery, If you want to test another battery, delete the current one and test the battery data you want to test.

**Q: Is the voltage data accurate?**
A: The data with an accuracy of more than 99.5%, with intelligent calculations that make the data more accurate the longer you monitor it.

## Frequently Bought Together

- ANCEL BM300 12V Battery Monitor, Bluetooth 4.0 Automotive Voltmeter with Charging, Cranking System Test & Alarm - Compatible for Solar Power Systems, RVs, Motorcycles, Boats, Cars, and Trucks
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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-01-26*