Nissan qx (12 years old) - N.A.T.S. System - bugs

I have a 2000 Nissan QX, converted to LPG seven years ago, it is a great car!!

My problem is that over the past two years I find the battery drains very quickly, in 3/4 days,

Could this be a fault with the NATS system as it seems to be the only item that is using any battery power when the car is stationary and in the garage? Is it possible to disconnect the NATS system?

Nissan qx (12 years old) - N.A.T.S. System - Collos25

How do you know its the only thing using power when parked have you tested the system could be a number of things .

Nissan qx (12 years old) - N.A.T.S. System - bathtub tom

Have you considered the battery may be on its last legs, has it been replaced in the last seven years?

Nissan qx (12 years old) - N.A.T.S. System - elekie&a/c doctor

Extremely unlikely to be the nats system.(which cannot be disconnected).Get the electrics checked by a competant auto sparks.IOD (ignition off drain) should be less than 100mA and preferably nearer 60mA.Have you had the battery tested?

Nissan qx (12 years old) - N.A.T.S. System - bugs

Many thanks for the reply, I will get the electrics checked.

The battery is new, six months old.