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BM300 Pro Battery Monitor - 6V/12V/24V Universal with Bluetooth 5.3 & Reinforced Design, Charging & Cranking Tests, Real-Time Alerts for Lead-Acid & Lithium Batteries in RV, Truck, Marine & More
- UNIVERSAL 6V/12V/24V COMPATIBILITY Auto-detects 6V, 12V, and 24V systems so one monitor fits classic cars, daily drivers, and 24V RV/truck/marine setups; supports lead-acid (Flooded/AGM/Gel/EFB) and lithium. Note: 6V supports SOC/voltage/temp only (no charge/crank tests).
- MONITOR UP TO 4 BATTERIES IN ONE APP Manage RV house + starter, boats, and dual-battery trucks from a single dashboard; view battery voltage, state of charge (SOC), and trends to spot issues early and reduce unexpected no-start situations.
- REAL-TIME ALERTS FOR EARLY WARNING Get phone notifications for abnormal voltage, charging problems, and weak starting performance so you can act before a drained battery or alternator issue leaves you stranded.
- BLUETOOTH 5.3 + IP67 REINFORCED HOUSING Bluetooth 5.3 helps provide a more stable, longer-range connection; reinforced composite housing with IP67 sealing is built to resist water, dust, vibration, and corrosion in harsh environments.
- CHARGING & CRANKING TESTS + HIGH ACCURACY Run charging and cranking performance tests on 12V/24V systems to turn raw readings into actionable diagnostics; designed for high measurement accuracy (>99.6%) for confident troubleshooting and maintenance.
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Generic Brand BM300 Pro Battery Monitor (6V/12V/24V, Bluetooth 5.3)
Keep your batteries ready for every start with the Generic Brand BM300 Pro Battery Monitor. Built for automotive, RV, truck, and marine environments, it supports common 6V/12V/24V systems and works with both lead-acid (Flooded/AGM/Gel/EFB) and lithium batteries.
Why its a smart install
- Universal monitoring: Auto-detects system voltage for fast setup across vehicles.
- Monitor up to 4 batteries: Manage RV house + starter, boats, and dual-battery trucks in one app.
- Real-time alerts: Notifications for abnormal voltage, charging issues, and weak starts.
- Bluetooth 5.3 connectivity: Designed for a more stable, longer-range connection.
- Reinforced IP67 housing: Sealed design helps resist water, dust, vibration, and corrosion.
- Charging & cranking tests: Available on 12V/24V systems for actionable diagnostics.
- Low power draw: Approx. 1mA for set-and-forget installation.
Compatibility
- Battery types: Lead-acid (Flooded/AGM/Gel/EFB) and Lithium
- Voltage: 6V / 12V / 24V (6V supports SOC/voltage/temperature monitoring only; no charging/cranking tests)
- Install tip: Mount away from thick metal obstructions for best Bluetooth signal
FAQ (quick answers)
- Does it work with lithium batteries? Yesmonitoring and alerts support both lithium and common lead-acid types.
- Can I use it on a 24V system? Yessupports 24V, including charging/cranking tests on 12V/24V setups.
- How many batteries can I track? Up to 4 batteries in the app.
- Will it drain my battery? Designed for permanent install with about 1mA draw.
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
- CONTACT
Return Policies
- Return for refund within: 30 days
- Return for replacement within: 30 days
- This item is covered by Machao shop Return Policy
Manufacturer Contact Info
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