vectrix with short range. Cell death - 0.00v

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R
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vectrix with short range. Cell death - 0.00v

A friend have been complaining about his vectrix range. We had permission to access the upper floor of of his vectrix's battery. Surprise! we found a death cell, 0.00V. Anybody has tried to resurrect a death cell? I've read here that there's a process to bring them to life again...

The rest of the cells were exactly at 1.32v, showing a superb equalization...
Have a look at the pictures:

http://www.voltforum.cat/voltforum/YaBB.pl?num=1256521497

Mik
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Re: vectrix with short range. Cell death - 0.00v

The cells can be badly imbalanced even if the voltages are the same (without a load). And further bad cells in the lower layers are quite likely.
All the cells can be full, showing the same voltage, but some have 26Ah capacity, and some 15Ah capacity. Voltage alone tells you very little!

The front battery air seal is missing in the pictures. Without it, there will be very little cooling for the front battery, the air will flow around it instead of through the battery.

This information may be used entirely at your own risk.

There is always a way if there is no other way!

R
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Re: vectrix with short range. Cell death - 0.00v

The front battery air seal is missing in the pictures. Without it, there will be very little cooling for the front battery, the air will flow around it instead of through the battery.

Thanks for your comments, they're vey useful! Can you explain a little more about this battery air seal? do you have a picture?

marylandbob
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Re: vectrix with short range. Cell death - 0.00v

A ni-cd or ni-mh cell showing 0 volts is sometimes internally shorted. I have found that by applying a very high amperage charging current, for a short time, say 10 seconds, followed immediately by charging, sometimes such cells can be revived, but they sometimes short again. (charging by connecting the bad cell to the output of two similar, series connected GOOD cells for 10 seconds often works!--Connect positive of bad cell to positive of one good cell, connect negative of bad cell to negative of the other good cell, connect good cells remaining +- together)-Bob

Robert M. Curry

Mik
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Re: vectrix with short range. Cell death - 0.00v

The front battery air seal is missing in the pictures. Without it, there will be very little cooling for the front battery, the air will flow around it instead of through the battery.

Thanks for your comments, they're vey useful! Can you explain a little more about this battery air seal? do you have a picture?

http://s281.photobucket.com/albums/kk217/Mr_Mik/Vectux/Motor%20Controller%20Repair/Getting%20to%20the%20Motor%20Controller/?acti...

This information may be used entirely at your own risk.

There is always a way if there is no other way!

R
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Re: vectrix with short range. Cell death - 0.00v

thanks Mik. We are learning plenty things with your comments! It seems that there's no air seal. Can it be an upgrade? this Bike is 00214 june 2007, 2nd wave. Is it possible to know number an date of the picture's bike with air seal (or just if it's newer)?

Mik
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Re: vectrix with short range. Cell death - 0.00v

thanks Mik. We are learning plenty things with your comments! It seems that there's no air seal. Can it be an upgrade? this Bike is 00214 june 2007, 2nd wave. Is it possible to know number an date of the picture's bike with air seal (or just if it's newer)?

The picture is from the Vectux, number 1900-and-something. Delivered to me in Feb or March 2008, square charger connectors, newer kill switch.

This information may be used entirely at your own risk.

There is always a way if there is no other way!

R
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Re: vectrix with short range. Cell death - 0.00v

Interesting. If received march 2008, it's 2nd wave build, and the front white label behind the fork should say "november 2007" (date of production).
Your vectux rested 4 months, probably without any battery care... time enough to harm some cells.

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