Kickstarter Success: leagend JS300 PRO Series Gains Strong Support for Redefining the Traditional Jump Starter
Battery-free SuperCap jump starter adds app-based battery health monitoring

DETROIT, MI — leagend says its JS300 PRO series of battery-free SuperCap jump starters reached its Kickstarter goal. The permanently installed system adds app-based battery monitoring covering state of charge, state of health, cranking amps, voltage and temperature.
The units are rated from minus 40 to 80 degrees Celsius, and the PRO-D version adds a solar-assisted onboard display.
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