Description
JDiag • Emergency starting power supply SC-400
The JDiag SC-400 is a professional 3-in-1 emergency starting power supply combining jump-start, battery diagnostics and alternator performance detection functions. Built for 12-volt vehicles, it delivers instant cranking even from zero-voltage battery conditions, thanks to its 1000 A peak current and 400 A starting current. The unit is constructed with explosion-proof super-capacitor cells and a robust waterproof, drop-resistant enclosure, ideal for use in repair shops, roadside assistance or automotive professionals requiring reliable power in adverse conditions.
Key benefits
- Universal jump-starting of 12 V vehicles, works at zero battery voltage
- High output: 1000 A peak current, 400 A continuous start current
- Ultra-fast recharge in 15 seconds with unlimited cycle life
- Comprehensive diagnostics: battery test and alternator performance evaluation
- Durable design: explosion-proof capacitors, waterproof & shock-proof housing
- Safety features: reverse-power and reverse-connection protection, smart auto power-off
Supported functions
Depending on vehicle compatibility the following functions are supported:
- Emergency jump-start of 12 V vehicle from zero battery voltage
- Battery health testing and voltage readout
- Alternator performance testing under load
Included items
- 1 × JDiag SC-400 emergency starting power supply
- 1 × pair of insulated battery clamps
- 1 × user manual
Supported languages
English, Russian, Chinese, Japanese, French










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