SUPNOVA 7–100V Waterproof Battery Monitor — IPX7, Voltage/Capacity/Temp Display with Buzzer Alarm

SUPNOVA’s 7–100V waterproof battery monitor displays voltage, capacity percentage, temperature and includes programmable buzzer alarms for reliable battery supervision on vehicles and marine craft.

This compact digital monitor is built to measure a wide voltage range (7–100V) and estimate battery capacity for systems such as 12V–84V lead‑acid, AGM, LiFePO4 and ternary lithium packs. Housed in an IPX7-rated enclosure with reverse‑connection protection, it can be mounted with the included bracket, double‑sided adhesive or screws. The unit stores your settings after power loss and lets you toggle between voltage and temperature readouts, plus configure high/low buzzer thresholds for early warning.

How accurate is the SUPNOVA monitor for different battery chemistries?

The monitor reads actual pack voltage and converts that to a percentage capacity based on default 12V lead‑acid mapping; other chemistries are supported but require initial configuration. For best estimates, select the correct voltage range and battery type during setup and allow the monitor to learn real‑world usage patterns over several charge/discharge cycles.

• Voltage range: 7–100V (covers 12V–84V systems)
• Works with lead‑acid, AGM, LiFePO4 and ternary lithium batteries
• Default calibration: 12V lead‑acid (user adjustment recommended)
• Displays percent capacity derived from measured voltage

What protections and environmental ratings does it offer?

The SUPNOVA monitor is IPX7 water‑resistant and built inside a fully enclosed shell to resist dust and splashes, suitable for both indoor and outdoor installations. It includes reverse connection protection so accidental wire swaps won’t immediately damage the device.

• IPX7 waterproof housing for rain and temporary immersion
• Dust‑resistant, fully enclosed construction
• Reverse polarity protection on the input leads
• Operating environments: automotive, marine, RV, motorcycles, golf carts

How do the alarm and display functions help prevent surprises?

You can program audible buzzer alarms for both low and high voltage thresholds so the monitor warns you before the battery reaches critical levels. A short press of the M key switches between voltage and temperature displays, and the device retains your alarm settings after power loss to preserve configuration.

• Settable buzzer alarms for low/high voltage alerts
• Temperature readout switchable with the M key (Celsius)
• Power‑off memory preserves alarm and display settings
• Simple front‑panel control for everyday adjustments

What’s included and how is it installed?

The monitor ships with a 60 cm (23.62 in) positive and negative lead, a mounting bracket, double‑sided adhesive and screws for flexible mounting options. Installation is straightforward: connect red to positive and black to negative, mount the bracket or adhesive pad, then follow the quick setup so capacity reads correctly.

• Included: monitor, 60 cm red/black leads, bracket, adhesive pad, screws
• Wiring: red = positive, black = negative (observe polarity)
• Mounting options: bracket, screws, or double‑sided adhesive
• Important: perform the initial configuration per instructions to avoid a constant 100% reading

Who this is for: technicians, DIYers and fleet operators who need a compact, weatherproof display to track battery voltage, estimated capacity and temperature across a wide range of systems—ideal for motorcycles, electric scooters, golf carts, RVs, boats and off‑grid vehicles. If you need simple, hardwired battery visibility with audible alarms and reliable outdoor performance, this SUPNOVA monitor provides a durable, configurable solution.