DID YOU KNOW?
Car batteries weren’t standard in vehicles until the 1920s. Early cars had no electrical system and required hand cranking to start — a dangerous process that often led to injury. Today’s jumpstarting is safer, but still carries risks if done incorrectly. [3]
STAY INFORMED
- Jumpstarting a dead battery is a valuable skill, but if done improperly, it can lead to electric shock, fire, or even battery explosion.
- Vehicle batteries contain corrosive acid and produce hydrogen gas, which is highly flammable. [1]
- Even though most car batteries are only 12 volts, they can still deliver dangerous current if shorted. Sparks near the battery are especially hazardous.
- Knowing and following proper jumpstarting steps is essential for your safety and your vehicle’s health.
HELPFUL TIPS
1. Wear Protective Gear
- Before starting, put on safety glasses and long sleeves. Remove any dangling jewelry to avoid accidental electrical contact. [1]
2. Connect Cables in the Right Order
- Connect the positive (red) cable to the dead battery first, then to the live battery. Never let cable ends touch. Only after this, attach the negative (black) cable to the good battery.
3. Ground the Final Connection
- Instead of connecting the final negative clamp to the dead battery, attach it to an unpainted metal surface on the vehicle frame. This reduces the risk of sparks near the battery. [2]
4. Disconnect in Reverse Order
- After the vehicle starts, remove the cables in reverse order: black from ground, black from good battery, then red from both. [1]
JUMPSTARTING SAFETY REMINDER
Jumpstarting may seem simple, but mistakes can be costly — or dangerous. Take a few extra seconds to follow the correct procedure and protect yourself from electric shock, sparks, and acid exposure. If in doubt, call for roadside assistance.