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Disconnect battery leaving car for a while?Views : 996 Replies : 11Users Viewing This Thread : |
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Aug 28th, 2018, 17:18 | #1 |
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Disconnect battery leaving car for a while?
I'm off on holiday soon and this will probably mean not driving my car for an entire calendar month.
If I disconnect the battery either fully, or just one terminal are there any potential issues? I'm worried about the CEM losing memory and this then causing issues or the alarm system not working or something? Thanks!
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2009 S40 SE Lux 2.0i | 2022 Suzuki V-Strom 650 | 2002 Audi TT 225 Previous: C70 Coupe 2.4i | Saab 9-5 Aero | Daihatsu SporTrak |
Aug 28th, 2018, 17:37 | #2 |
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There should be no reason to disconnect if your battery is in good condition and the standby current is within spec as it should start comfortably up to around 10 weeks.
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2002 S60 SE D5 Manual 209000 miles |
Aug 28th, 2018, 21:03 | #3 |
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Hmm alright thanks. I ask because it's gone flat twice in the past but ever since I removed the insurance black box which was fitted a few years ago it's been better.. Hopefully that was the source of the problem.
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2009 S40 SE Lux 2.0i | 2022 Suzuki V-Strom 650 | 2002 Audi TT 225 Previous: C70 Coupe 2.4i | Saab 9-5 Aero | Daihatsu SporTrak |
Aug 29th, 2018, 06:46 | #4 |
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If you disconnect the battery the alarm is unlikely to work anyway on a car that age unless you've renewed the auxiliary alarm battery.
If you are still on original battery prehaps you would be better off renewing it rather than disconnecting it then the month layup will be no problem. Alternatively leave a trickle or smart charger connected to the battery if possible, you don't say where you are leaving it, if at home the charger is possible if airport car park even disconnecting the battery is possibly impractical. Paul. |
Aug 29th, 2018, 07:40 | #5 | |
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Quote:
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Aug 29th, 2018, 09:40 | #6 |
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I would take the car for a longish run before parking the car so that the battery is charged.
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Aug 29th, 2018, 09:55 | #7 |
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Pop across to ebay. Loads of solar chargers on there for a reasonable price.
When I had a slightly 'tired' battery, and was only doing short journeys with cold starts, I bought one. (Item... Visua-4-Watt-12V-Solar-Panel-Trickle-Car-Battery-Charger). Used to pop it on the dashboard and run the wires direct to the battery with croc clips (the cigarette lighter socket on my V70 was ignition controlled - so no good for charging through!) I did this every day for about six months! Never had a problem for ages until the battery really had had enough of life! Though, for safety's sake, I did put an in-line fuse into the cable! No good if the car's kept in a garage, though! Then, one day, I actually afforded a new battery!
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Aug 29th, 2018, 11:12 | #8 | |
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If it is flat when you return, you know you have a problem which needs addressing. Checking the level of the standby drain and condition of the the battery is very simple though so personally, I'd be finding that out before any issue occurs.
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2002 S60 SE D5 Manual 209000 miles |
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Aug 29th, 2018, 21:26 | #9 | |||
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Aug 29th, 2018, 22:06 | #10 |
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Sounds to me like you don't need to worry.
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