Ultracapacitors and a lithium ion battery give the Schumacher DSR ProSeries 1200 Peak Amp Ultracapacitor Hybrid Jump Starter (DSR132) its powerful performance. The innovative technology in the DSR132 is leading jump starters into the future. The ultracapacitors work efficiently within a broad temperature range (-40 Deg. F to 149 Deg. F/-40 Deg. C to 65 Deg. C), recharge quickly, and maintain high-energy efficiency. The DSR is suitable for starting both gasoline and diesel engines with 1200 peak amps of power. Product Features:1200 peak ampsQuick and easy to charge from vehicle battery, DC port, or backup lithium batteryMaintenance-freeSuitable for gasoline and diesel enginesDigital display and LED indicatorsHeavy-duty clampsMicroprocessor controlledShort circuit protectionReverse polarity protection Override Mode to start engine without any battery mountedGlow Mode for cold start of diesel engine