Battery Electrical Drain/Parasitic Load. Opel Sintra 1999

For 1990-2009 cars

Certain electronic devices on the vehicle maintain a small continuous current drain (parasitic load) on the battery.

If the engine of the vehicle is not started for 30 days, the battery may reach a low state of charge. If the battery is repeatedly allowed to reach a low state of charge, permanent battery damage may result. A battery that remains in a low state of charge for a long period of time may be difficult to recharge or permanently damaged.

### Battery Protection During Vehicle Storage

In order to maintain the battery state of charge while storing the vehicle for more than 30 days:

1. Make sure that the green dot is visible in the battery hydrometer (1). If a green dot is not visible, refer to Battery Check .
2. Disconnect the battery ground (negative) cable in order to protect the battery from discharge caused by parasitic current drains. Refer to Battery Negative Cable Disconnection and Connection .

Important:

If the battery cannot be disconnected, establish a regular schedule for charging the battery every 20-45 days. Maintain a high state of charge for the battery.