Battery Marvel (Assembled)

Battery Marvel (Assembled)
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Price: $32.95
Product ID : SKU17067


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Battery Marvel helps protect cars, trucks, motorcycles, boats and any other 12V vehicles from sudden battery failure. This easy-to-build kit features a single LED that glows green, yellow or red, indicating battery health at a glance. An extra-loud piezo driver alerts you to any problems.

Battery Marvel not only monitors your battery, but your starting and charging systems as well. It rapidly samples voltage fluctuations during cranking and charging and performs continuous analysis to ensure your battery is healthy and well-charged.

Easy two wire, five-minute hookup for most vehicles.

Includes 4 page installation manual.


  • Analyzes battery health around the clock. Works with cars, trucks, motorcycles, boats, personal watercraft, ATVs, scooters and more.
  • Embedded software monitors state of charge and state of health.
  • Extra-loud (100+ dB) audible alarm with periodic reminder “chirp”
  • Built-in temperature sensor automatically adjusts from -40 to 150 deg. F
  • Low power PIC microcontroller consumes very little current
  • Records cumulative statistics, battery performance history, alerts issued (with timestamp and current temperature) and more in non-volatile FLASH memory
  • Transmits recorded data optically at boot (blinks red LED @4800 bits/sec)
  • Custom CNC-machined case with industrial Velcro backing strip
  • Custom polycarbonate label with backside printing and stainless steel mesh grill
  • 18 gauge automotive-rated 12” connecting wires with 1/4” spade terminals
  • Measures just 1.5” x 1.25” x 0.75” and weighs only 1.5 oz.

*Note: This is not suitable for high-voltage hybrid or all-electric vehicles. 12V electrical systems only.

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