Sv: Drive unit failure

[torle]

I gå satte jeg bilen(partner) på servicelading når jeg kom på jobb, bilen sto da på ca 70% etter 50Amp overlading hadde spenningen begynt å falle, men temperaturen var kommet opp i 42 grader.
Jeg fulgte med på temp og spenning av og til, alt så greit ut temperturem steg til 25 grader og spenningen gikk fortsatt oppover i løpet av en time steg tempen og spenningen var sunket ca 10 volt under den høyeste verdi jeg hadde sett i løpet av dagen.

Valgte da å avslutte ladingen og fylle vann, både pumper og vifte fungerer, men har aldig sett så høy temp før, noen som har ide om hva som skjer.
Bilen har en rekkevidde nå om dagen på 80 km + og ladelys kommer ikke på før under 0%.

Edit: Der er  kjølevann og jeg har ingen lekasjer eller feilkoder.

[elektrolux]

Partner måler temperatur rett på en celle i 4er kassen.

Da kan du få så høye temperaturer. Er uheldig, men fremdeles innenfor det NiCd tåler.

Kan også være at denne cellen går ekstra varm, og kan synge på siste verset.

[Pera L]

Many times the temperature sensor in the engine room battery box is faulty and then normally it start showing too high temperature. I have installed 3,3kohm NTC in the battery end by drilling some 8mm hole in the box sidewall.
REMEMBER! The battery end is just about 1cm from the wall so... very short drill is good.
Good idea is check if the temp sensor reading and extra temp meter showing about the same temperature.

[torle]

Hi thought I have a sensor in spare, but could not find it.... Is this 3,3kohm NTC same as original value?
Do anyone have the part number for the sensor I do not manage to find part number?

[Pera L]

Heps heijjaa! Sensor connector is in the engine room battery box, front left corner, downside. You can take out the connector (spring locked) and put a normal resistor for the connector, let say some 5-6kohm, and test the charging. I can not believe that the batteries really warming so much. If the charging works then there is faulty NTC. You can also measure sensor and if the temperature is like 0C then there must be about 7-8kohms resistance value.
Sensor it self is attached for the battery end plate inside of the box and easiest way is drill the hole, 10cm from the left front corner for the back and 10cm from bottom to up. Removing the water tank helps a lot, just one rubber rope. Then normal 3,3kohm standard NTC, 0,2W or more, and connect it to coming wires. Poles does not matter which way. Put some mass or soft glue for the NTC and hole and stick the NTC for battery end.
Standard NTC have the same resistance curve compared temperature as it is in original one.

BUT REMEMBER! The battery end is just 1cm from wall so do not drill hole in the battery.
A little comfort, Renault have same NTC problems than PSA. I can not understand why they get broke. Voltage between the poles is 5,5V max and resistance is 1,7kohm min meaning 0,02W power if I calculated right. Weird or What?