gort Posted October 4, 2022 Share Posted October 4, 2022 Hi Guys. I'm going abroad for 2 months, so I'm thinking of disconnecting the battery for 2 months, will I have any issues when I return and start her up? ps... it's not possible to use a trickle charger, no power point near by. Thanks in advance. Quote Link to comment Share on other sites More sharing options...
Jack94 Posted October 4, 2022 Share Posted October 4, 2022 After 2 months the battery will be completely flat, whether you leave it connected or not, and probably need replacing by the time you get back. You'd be much better off leaving it on charge whilst you're away, even if that means removing it from the vehicle. The only problem with that is you're leaving the car without an alarm. Quote Link to comment Share on other sites More sharing options...
KUGT4 Posted October 4, 2022 Share Posted October 4, 2022 If batteries are useless after 2 months disconnected how do battery manufacturers store/sell them? 1 Quote Link to comment Share on other sites More sharing options...
DoogyRev Posted October 4, 2022 Share Posted October 4, 2022 I would say it would be better to disconnect it than leave it connected if you don't have a trickle charger. https://www.autoguide.com/auto-news/2016/10/leaving-your-car-for-a-while-here-s-one-mistake-you-should-never-make.html Going anywhere nice? 1 Quote Link to comment Share on other sites More sharing options...
KUGT4 Posted October 4, 2022 Share Posted October 4, 2022 I'd also run your aircon for a while before leaving it any length of time as issues can arise if left for months without use 1 Quote Link to comment Share on other sites More sharing options...
Stewal Posted October 4, 2022 Share Posted October 4, 2022 A disconnected battery will not go flat in 2 months. There is only a very tiny self discharge current. Reconnect after 2 months and it should have no problems starting the car. Quote Link to comment Share on other sites More sharing options...
gort Posted October 4, 2022 Author Share Posted October 4, 2022 2 hours ago, DoogyRev said: Going anywhere nice? Australia Quote Link to comment Share on other sites More sharing options...
gort Posted October 4, 2022 Author Share Posted October 4, 2022 Thanks for the advise guys Quote Link to comment Share on other sites More sharing options...
Jack94 Posted October 4, 2022 Share Posted October 4, 2022 The battery won't currently be at 100% charge, and once it goes below 80% the cells can be damaged. The self discharge rate can be up to 10%/month. Quote Link to comment Share on other sites More sharing options...
muzzer Posted December 6, 2022 Share Posted December 6, 2022 If disconnecting the battery but leaving it in place, which terminal is best? And how should it be protected so it does not risk shorting out on the bulkhead? Thanks Quote Link to comment Share on other sites More sharing options...
KUGT4 Posted December 6, 2022 Share Posted December 6, 2022 Negative, isolate with a disposable rubber glove wrapped around it 1 Quote Link to comment Share on other sites More sharing options...
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