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Product Info
Product Info
The Century Bluetooth Battery Monitor BM12V tracks battery state of charge and vehicle charging system performance, sending live data to a smartphone via Bluetooth. It suits 12V lead-acid batteries, including flooded, AGM and gel types, across cars, 4WDs, SUVs, trucks, caravans, marine and recreational vehicles, helping prevent unexpected breakdowns by alerting to low voltage before starting fails.
Through the Century BM12V app for iOS and Android, the monitor runs engine crank tests to assess starter performance, automatically records trip duration, and sends push notifications for low battery voltage and low cranking voltage. Historical voltage data is stored for 31 days, letting users spot trends and diagnose charging system faults early.
Features
- Suits all lead acid 12V flooded, AGM and Gel batteries
- Automatic Bluetooth connection to iOS and Android smartphones
- Live state of charge test displays current battery voltage
- Push notifications warn of low battery conditions
- Crank test via app automatically records engine start performance
- Stores 31 days of voltage history for trend and fault diagnosis
- 2 Year Warranty
Tech Spec
| Operating Voltage | 6-20V DC |
|---|---|
| Battery Types Supported | 12V lead-acid batteries, including flooded, AGM and Gel |
| Measurement Range (Voltage) | 9-16V, voltage accuracy ±0.03V |
| Display Type | No physical display; readout via the Century BM12V smartphone app (iOS/Android) |
| Connectivity (Bluetooth / Wired) | Bluetooth 4.0, range up to 5m |
| Measured Parameters (V, A, Ah, SOC %) | Battery voltage and cranking voltage (state of charge) |
| Alarm / Alert Functions | Push notifications for low battery voltage and low cranking voltage |
| Number of Batteries Monitored | App supports monitoring multiple BM12V units |
| Dimensions (H x W x D) | 55 x 35 x 16mm |
| Warranty | 2 Year Warranty |
| Cable Length | 172mm ±5mm |
| Operating Temperature | -40°C to 90°C |
| Power Consumption | 1mA ultra-low power draw |
| Protection Features | Reverse polarity protection and in-built resettable fuse for short-circuit protection |
| Weight | 75g (including packaging) |