the manual recommends running the car for a minimum of 30 minutes every three months
at return, two and a half month later
The second time (this year) after a sty of almost three months
If anyone is interested in how the 12V battery is coping with a long stand-still, I provide here some information.
We are used to spend the winter in warmer regions then Holland and so our Jazz is left alone in our garage for the whole period. The garage does not have electricity, so it is impossible to trickle charge the battery. The battery does cope very well.
The first time the data ware : at departure the battery measured 12,8V, at return, two and a half month later, it was 11,9V. After a trip for an hour the charge (next day) was 12,6V.
The second time (this year) after a sty of almost three months, it was: at departure 12,6V and at return 11,6. The car started up without help from a jumpstarter. The charge the day after the charge-up trip was 12,4V.
I assume the battery will hold on for another winter (or 2?) what more is than I expected.
I would not recommand anyone to follow my example and (mis)treat the battery (and car?) the way I do, but my conclusion is that the small 12V battery is quite sturdy and holds up very well. A stand still of a few of weeks should not cause any problem.
In our case as this is the Mk4 thread the batteries aren't that old.
Indeed, Botak= bald(no hair) in Indonesian/Malaysian. We have some old Indonesian roots in our family. ;)
This flat battery talk is a bit worrying, I have just got a Jazz EX and forward park it in a garage which means I would have no access to engine compartment. With my old car I would put it in neutral and roll it out of the garage, I don't think this is possible with a hybrid. I can't believe that a modern car would suffer with this problem and not have some sort of battery backup, especially a high tech car like the Jazz.If you're leaving the car for a long time maybe you should reverse park it into the garage?
Also I'd recommend NOT using the app to check the status of the car, however tempting. This must drain the 12v a bit with each check.The vehicle shuts down the telemetry connection after 5? days of the vehicle not being used in order to reduce the power drain.
On my old Fiat Panda I just used to disconnect the battery when leaving it for a long time and reconnect when I returned. The battery seemed to be able to retain a large enough charge to start the car even after over a year. Would that be possible on the 12 volt battery of the Jazz to prevent drain from the sleeping electronics?If there was no power to the electronics the system would probably forget all your settings and effectively do a 'factory reset' when the battery was reconnected so probably not a good idea
On my old Fiat Panda I just used to disconnect the battery when leaving it for a long time and reconnect when I returned. The battery seemed to be able to retain a large enough charge to start the car even after over a year. Would that be possible on the 12 volt battery of the Jazz to prevent drain from the sleeping electronics?
...
Due to (medical) circumstances, the car was not used for 71 days (10 weeks, 2½ months).
...
With fingers (also toes and eyes) crossed I pressed the unlock button on the key.
Flashing, mirrors unfolding and everything seems ok.
With fingers (also toes and eyes) crossed I pressed the unlock button on the key.Lithium batteries have a very low self discharge rate. New ones are shipped part charged and can sit on shelves for years without dying. In addition, the HV battery in the Honda is disconnected when the vehicle is powered down so there's no risk of any parasitic power drain discharging the HV battery. It's the 12V battery that gets drained.
Flashing, mirrors unfolding and everything seems ok.
Foot on the brake, finger on power button... and I see 9 (nine!!?) bars on the left.... HV battery almost full?