GOOLOO Jump Starter Portable 4000A 12V Car Battery Heavy Duty High Booster

4000A peak cranking power enables Gooloo GT4000S to start almost all 12 volts dead battery engines up to 12.0L gasoline or 10.0L diesel in just a few seconds. Compared with a traditional car jumper or jumper cables kit, it's really powerful enough but more compact.