CATL-Umbau für Anfänger, Workshop-Muffel oder auch Ungeduldige

davidea schrieb:

someone can explain better this two photos?
from the battery we come out with a cable, this cable arrive to the current sensor, but i don't understand :

originally the sensor is on the positive cable ...
there will be a piece of (copper??) that go trought the sensor and connect to the ... ?

That`s not true!
In the Twizy battery the current sensor is mounted on the negative pole!
The poles are made of a flat copper material 20 x 2 mm.
This flat material goes trough the current sensor.
On the photo, above the black coloured current sensor, you can see the silver shining flat material of the positive pole.
The negavite pole looks very similar.
You can see a little piece of it on the right side of the current sensor behind the cable connector with the screw.

I hope you will understand what I me to say.

Google Übersetzung für die "Eingeborenen"
Das stimmt nicht!
Bei der Twizy - Batterie ist der Stromsensor am Minuspol montiert!
Die Pole bestehen aus einem Kupferflachmaterial 20 x 2 mm.
Dieses Flachmaterial trifft auf den Stromsensor.
Auf dem Foto ist oberhalb des schwarz eingefärbten Stromsensors das silbern glänzende Flachmaterial des Pluspols zu sehen.
Der Negativ-Pol sieht sehr ähnlich aus.
Ein kleines Stück davon sieht man auf der rechten Seite des Stromsensors hinter dem Kabelverbinder mit der Schraube.

Ich hoffe, Sie verstehen, was ich sagen will.

Snorre schrieb:

That`s not true!
In the Twizy battery the current sensor is mounted on the negative pole!
The poles are made of a flat copper material 20 x 2 mm.
This flat material goes true the current sensor.
On the photo, above the black coloured current sensor, you can see the silver shining flat material of the positive pole.
The negavite pole looks very similar.
You can see a little piece of it on the right side of the current sensor behind the cable connector with the screw.

I hope you will understand what I me to say.

sorry, i didn't think about the fact that there are 2 flat materials, one for the negative pole and one for the positive pole ....

but in this actual position, you have reused a piece of the flat materials to mount the sensor?
if yes, have you a photo about this piece before you mount on the battery? a more clear photo where i can understand better how to mount it? (maybe at the time i open the battery this will be more clear!!)
on the right side we have the cable, and on the left side?

davidea schrieb: but in this actual position, you have reused a piece of the flat materials to mount the sensor?
if yes, have you a photo about this piece before you mount on the battery? a more clear photo where i can understand better how to mount it? (maybe at the time i open the battery this will be more clear!!)
on the right side we have the cable, and on the left side?

When you open the battery, you will see that the sensor is mounted nearly at the same place.
Just a few centimeters on the right side of the screw.
You only have to do very little rework to the flat copper material of the negative pole with a cutter knife.
It`s really easy!

Here some photos how it looks when you open the battery.

1. in the left side of the photo you can see the sensor:




2. the silver shining flat material leads to the negative pole of the original LG battery modules.
This flat material will be replaced by the cable.




3. Here you see the sensor before moving it to the new place:




4. Here you can see the new place for the sensor (left side of the black M6 nut)
It`s necessary to cut of a bit of the orange protective varnish on the top and the bottom edge of the flat copper material!




The orange painted flat copper material leads from the sensor to the SEVCON socket connector !

ok, now it's very clear!!! i missed that the orange part is part of the old battery and remain in its position!
many thanks

hi! this weekend i will work on my battery, i have all for the work, i'm missing only bolts and nuts, tomorrow i will go to a shop near my house to buy it .. some hints?

self-locking? lenght?

davidea schrieb: hi! this weekend i will work on my battery, i have all for the work,

Could you please show a photo of all the parts, that you already have?
Then it will be easier for TC to tell you what is still missing.

Did you received the cables from Movilstore and / or Power & Storage?

davidea schrieb: hi! this weekend i will work on my battery, i have all for the work, i'm missing only bolts and nuts, tomorrow i will go to a shop near my house to buy it .. some hints?

self-locking? lenght?

I can give you the informations tomorrow. I am not in the office today.

Snorre schrieb: Could you please show a photo of all the parts, that you already have?
Then it will be easier for TC to tell you what is still missing.

Did you received the cables from Movilstore and / or Power & Storage?

no i can't

battery -> received -> delivered at friend's workshop
BMS cable -> received from movilstore -> delivered at friend's workshop
DC cable -> received (1 minus & 1 plus) -> in my bag

bolts and nuts -> i will buy
plywood -> i will buy

today i win!!! i and my friend succefully change the battery, not so easy but a great success without someone who made the conversion before ....

some hints for the future ... (some of this are well documented on the video but i doesn't notice it!!)

removing the old battery i discover the positive from the charger



i see on the video about the use of a wooden table under the battery, but i miss the width and i use a less thick table


then i add a styrofoam



i missed that we must remove an aluminuim part of the battery from the bottom ...



i can't find on my store the right bolts and stop, then i buy a 15 cm bolts (you can see on the wood in the previous photo)

i drill side by side the case, make the thread and lock on the bottom side with a mastic, on the upper side i cut the ears ad the same size and use it as stop

davidea schrieb: i drill side by side the case, make the thread and lock on the bottom side with a mastic, on the upper side i cut the ears ad the same size and use it as stop

Hi Andrea, it's not clear to me this part. Have you a photo?

Delvecchio schrieb:

davidea schrieb: i drill side by side the case, make the thread and lock on the bottom side with a mastic, on the upper side i cut the ears ad the same size and use it as stop

Hi Andrea, it's not clear to me this part. Have you a photo?

have a look at 5:38 min

Delvecchio schrieb:

davidea schrieb: i drill side by side the case, make the thread and lock on the bottom side with a mastic, on the upper side i cut the ears ad the same size and use it as stop

Hi Andrea, it's not clear to me this part. Have you a photo?

who is andrea??
what isn't clear? the hole ? the upper stop? the mastic? the photo i put here are the only photo i have ...

cosa non ti è chiaro? il foro passante? o come ho sostituito i fermi in alto che ti ha mostrato chris? puirtroppo non ho altre foto

i must say THANKS, many THANKS to all the guys in this forum, without you i'm not here now!!!

davidea schrieb: who is andrea??

Sorry Davide, if I wrongly named you.

davidea schrieb: cosa non ti è chiaro? il foro passante? o come ho sostituito i fermi in alto che ti ha mostrato chris? puirtroppo non ho altre foto

Esattamente. Ma grazie al video ora ho capito. Grazie.
Exactly. Watching the video now I understod. Thanks.