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| A small update: "the first Tazzari imported in CZ" keeps on living as a daily driver in Bucharest, RO (for 2 years now). Almost failed the tech inspection due to a "wet" brake that we fixed very quickly with a new set of seals, new pads and a new coat of paint:
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| I believe someone mentioned receiving such a procedure from Tazzari Service. Can you guys share it?
In a related topic: How can I take out the SOC dial for repairs? |
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| On a date:
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| So, they say I need to send the logic board interface for repairs (or replace the mini DC/DC converter ?!) 'cause it doesn't shut down 5 minutes after taking the key of ignition. I'm a bit puzzled and not entirely convinced that he board is defective. Looks good but looks can be deceiving 
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| QUOTE (DarkRider @ 2/12/2022, 11:39 PM) If I am not mistaken, on the first versions of the Zero, charging with the Key on was used to try to "reset" the EPROM when the calibration of the voltmeter was needed but this never worked for my Zero Classic.
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It just did!  Perhaps was not working pre BMS upgrade but after I got the battery light blinking in groups of 4 the other day I was able to recover from this using this exact method
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| As announced on DarkRider's post what used to be his Classic is now my daughter's second Classic. She calls it "Junior" even though it is number 133 while her first Zero Classic, the "Senior", is number 243.
The car has had a replacement DC/DC converter (the big one) performed by DarkRider and the original stereo made it back to the dashboard. It all works as far as I was able to verify yesterday (my first day with it). It appears to have a rather high self discharge, I found it on the last 3 bars from full charge on 25th of February.
I've measured the consumption on fuse number 2 (Alimentazione convertitore 12V): 0.1A at rest, 0.2A with ignition on, 0.26-0.29A with radio on. Turning the heater on (electric heating on this car) the consumption shoots up to 0.7-0.9A.
The 0.1A base consumption stays the same one hour later so it appears to be permanent. That is almost 200Wh / day not very high but not something one can ignore either.
Here it is, The Little Slipper Jr. charging up next to my wife's Zero (Citroen C-Zero):
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| Quick update: After installing the new shock absorbers I've fixed the steering geometry and added new winter tires. I had to stop "messing" with the car as my daughter started using it every day even though it has a ton of other issues to be solved. For example she asked me to find a solution to the leaking windshield that doesn't involve dismantling the car so she got a car cover for the rainy days 
The car has made 350km since she got it, no incidents and just a couple of technical issues: the car went into "limp mode" a couple of times for no apparent reason (all cells well above 2.5V) but each time it recovered with just a fuse 1+2 reset.
So, this has been a good daily driver and still is for a little bit more. Will get off the street soon to get some well deserved TLC including better balanced batteries
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| I'm the lucky one, or better still my daughter is. This lovingly restored Tazz has joined his less fortunate sibling in Bucharest. It's a "he": my daughter decided the name for her first Tazz was "Papucel" (little slipper) and this one is going to be "Papucel Jr." even though the VIN number shows it to be older but ... who am I to argue with the owner's wishes ?!
The restoration process will continue albeit on a slower pace. My thanks to DarkRider for taking such good care of this Tazz and for everything he's done to ensure the little car will get the attention it needs: the thorough documentation, all the new and original parts kept and included in the sale, all the advice given and in general going above and beyond with everything! |
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| | I can confirm the algorithm that DarkRider posted a above: The charger slows down as it approaches 4V on the highest cell than it stops on 4.2V while the balancer probably distributes some of that extra energy. Then it kicks in again at about 4.08V. It takes very little for the voltage to rise up again on that cell so the whole process gets repeated quite a lot meaning the highest cell is kept there between 4.08 and 4.2. I can't imagine that being very healthy but this is what it is. I'll leave it charging/equalizing for an hour or so and log some data |
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9 replies since 17/10/2021
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