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Emner - pexic

#1
Hello friends!

Thanks to Catalin and Tiek now I have a new project : to convert my new (1999) think piv4 to enerdel lithium.

First of all I have replaced the lead-acid battery with a home-made Lifepo4 one using some old 10Ah chinesse cells.

I have removed the NiCd stuff (batteries and pipes), now the battery box is empty.
Since I also plan to add a webasto I've decided to use the hidden compartment (see pictures) so I start cutting 2 big holes behing the seats.
I will use these holes perform tests on lithium conversion in order to keep the battery box in his place since, at least for me, It's difficult to remove it every day.
So, using 36s lithium configuration I start testing:
-charging works but it have to be manually stopped at 144v
-I have power at the wheels - ok.
BUT  :D  abd here we have the "new" problem:
- All the time (either charge or "drive") I have a sequence of 3 relay clicks at every 7 seconds comming from the "contactors box" inside the battery tray.
If you have some advice I will really appreciate it, meanwhile I'll continue with the conversion.

And another little odd stuff from this morning : the back tail lamps are always on... yesterday I did not have this ...

Regards
Viorel  [ You are not allowed to view this attachment ]    [ You are not allowed to view this attachment ]    [ You are not allowed to view this attachment ]    [ You are not allowed to view this attachment ]    [ You are not allowed to view this attachment ]    [ You are not allowed to view this attachment ]    [ You are not allowed to view this attachment ]    [ You are not allowed to view this attachment ]  
#2
Hola amigos :)

Since my electric heater is dead (don't even tried to repair it, it may verry well have a burned fuse :)) )
I want to install a Webasto diesel heater in my Think so my wife will not compain about poor heating anymore.
I'm now in the "test phase", please find some pictures below :



#3
Hello friends

I finnaly manage to remove the Energel battery from my Think
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I have to check it since I have to know if it can be repaired or replaced or...who knows.

I have to mention that, at this moment, I don't have the possibility to diagnose the car/battery but I'll read the forum and maybe I would manage to do that.

First impressions :

Some moisture shadow but nothing important as far I can see:
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Someone tried to repair the battery, some inside plastic screws are missing.
One of the 16 modules was replaced (see pcitures) also on this module the multi DIP-switch has a different configuration (see pictures).
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I've made some measurement to see if the cells can be saved or not, it seems that we are ok on this, all modules have exactly 43,5V except the "replaced" one who has 44,3V (see picture).
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Now I'm decided to diagnose the battery.

The car is not charging, however it connects ok to the 220V home network (power led is red and can bus led is blinking green)
These errors are reported in dash :
-red battery led is on (insufficient charge in 12V battery) -> but the battery is fully charged)
-limited power triagle is blinking
-warning lamp for low battery blinks rapidly

Thanks a lot in advance for your feedbacks/advices.
#4
Hello friends

Utill my friend will come and help me to remove the Enerdel defective battery I was starting to replace and relocate the 12V battery since I will need to connect/dissconect it quite often during the whole time while my Think will be restored/repaired in my garage.

I have AC so it was quite difficult to find a place for the new, smaller and only 5Kg, Lithium tithanate battery.

I found this temporarily solution :
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If this location will remain the final one then I have to think for some water protection.
Thanks for reading and for future feedback.
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