Battery goes flat after standing for only a few days

2008 Jaguar XF Premium Luxury
Car: Jaguar XF
Year: 2008
Variant: Premium Luxury
Categories: Electrics, ECU, Warnings & Lights
Battery goes flat after standing for only a few days. New battery fitted but still same. Is something draining it? there's a lot of electrical/electronic stuff on this vehicle that uses battery power but the battery fitted is the correct one according to the RAC who came out to get me started.
Problem added: Sep 28, 2020 (3 years ago)
I mentioned it to a friend of mine although he's not a mechanic he's very knowledgeable about car faults and issues. He seemed to think it could be the alarm system that's constantly operating even though the vehicle is turned off. He also recommended I get a solar charger and leave it on the dashboard to help keep the battery topped up.
Answered Sep 28, 2020 (3 years ago)
Definitely something is draining it,should last weeks with the alarm system on ,best to use a multimeter on amps and check for drain ,volt drop test
Answered Sep 28, 2020 (3 years ago)

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