Attention! Only a 12-volt battery may be used to start the engine. When trying to start the engine using a 24 V current source (e.g. a 24V battery or two 12V batteries connected in series) the engine starter, ignition system and other electrical devices of the car will fail.
1. Make sure the auxiliary battery you intend to use is rated at 12V.
2. If the auxiliary battery is installed on another vehicle, the vehicles must not touch each other. Shut off the engine of the vehicle whose battery will be used as an auxiliary battery. Turn off all unnecessary electrical consumers on both vehicles.
Pic. 1.173. Connecting the second battery terminal
3. Connect the terminals of the extension wires strictly in the sequence shown in Figure 1.173.
- Connect the extension wire terminal to the positive pole of the discharged battery (1).
- Connect the second terminal of this wire to the positive pole of the auxiliary battery (2).
- Connect the other extension wire terminal to the negative pole of the auxiliary battery (3).
- Connect the second terminal of this wire to an exposed solid metal part that is at a sufficient distance from the discharged battery (4). Such a part can be, for example, a suspension strut mounting bolt.
4. Start the vehicle's engine with the booster battery and let it run for a few minutes. Then start the car engine with the dead battery.
5. After successfully starting the engine, carefully disconnect the extension wire terminals in reverse order.