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Discussion Starter #1
Just wondering if any other owners have noticed their Battery Status level falling over time and whether there is any pattern to this such as deliberate reconditioning periodically.

Mine has normally always shown something in the mid 90% range (say 93% to 97%), but I noticed on the way back from the Oxford meet yesterday that it was down to showing 73%, despite having just done an 80 mile run to get there. By the time I got back home it had actually dropped further to showing 71% rather than having recharged.

The car's back on the charger in the garage again now, but I would be interested in whether this is a common occurance or if there may be a potential problem with my battery - given the replacement cost once it is outside warranty is something over £1k.

Are most owners keeping their cars permanently on-charge when they are parked up at home? I have only plugged it in whenever I have known that I will not be driving it again for more than 2 or 3 days, which included a period I was away for 3 weeks earlier in April/May.
 

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Always put battery conitioner on even overnight. Its the experience with Ferrari that makes me do this as their batteries are shall we say flawed:(
 

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The Guys at manchester suggested i put it on charge if im not using it over 24 hours,i didnt do this for the first few months and did get some issues i dont get now that i charge it,but ive never had a drop of 71%,always 93 to 97:confused:
Bad news about the battery cost,as i read somewhere it only lasts a couple of years,anyone else know of this?? And is there provision for a big old fashioned cheap one??:rolleyes:
 

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Have not used the charger at all during the last 5 months and have never seen a battery condition lower than the 90s (admittedly I'll be more observant now that someone has mentioned it). The car is used most days and rarely remains static for more than 2-3 days (whenever I've been away for longer it's usually back having it's niggles looked at). I did read somewhere that there are similar cost/longevity issue with the optional lithium batteries in the Porsche GT3s?

The manual states that a standard lead acid can be used to get you going in an emergency but will result in a myriad of warning messages.
 

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No battery problem for me in the 5 months I have had the car. I don't use it as a DD and I never used the charger although I occasionally left the car in the garage for up to 2 weeks. Even then, the battery status was still above 90%.
The only time I got a lower score was when I parked the car with a 100% status, took it back a few hours later at 71%, and did not manage to make itmove above that even though I drove it for an hour. The next time I took it, after several days in the garage, it was back to almost 100%.
This is a clear indication that the sensor or software, not the battery, is the problem. Quite reassuring, but still, I would prefer all this to be accurate (same observation for the oil level gauge, by the way, as two consecutive measurements tend to lead to pretty different results)
 

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I was told that the latest software update, v8.3, included the following:

-Key not found message
-Window behavior on door closing
-Quiescent current draw improvements
-confirmation lighting for lock/unlock to be more consistant

... and yes I had to look up the definition of "quiescent"!
 

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haven't used my charger yet and have had no issues with 90%+ readings when I looked. I heard that if the charge gets too low the software will disconnect the battery so you can't charge it with the plug in and have to remove the bonnet bucket.
 

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I've never even unpacked my charger.
 
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