Overview
- ADAC guidance calls for connecting the red lead to the positive terminal first and attaching the black lead to a solid chassis ground on the disabled car, not its battery post.
- Start the donor vehicle before attempting the stalled car, let both engines run for a few minutes after a successful start, and then fully recharge the battery by driving or using a charger.
- Remove the cables in reverse order beginning at the formerly disabled car, avoid long cranking attempts, and briefly switch on lights or the blower to reduce voltage spikes.
- EVs typically can receive a 12‑volt jump but often must not provide one, so owners should follow the vehicle manual or call roadside assistance if unsure.
- Consumer outlets highlight portable jump-starter powerbanks as a practical option, including a journalist’s successful test of an Acezuk 6000A unit, though device capabilities and instructions vary and repeated failures warrant battery testing or replacement.