What kind of battery does the Chevy Volt use and other ???'s

[sangesf]

I see they installed a chevy volt charging station or two in my local area..

Was wondering if there is a way to adapt a charger plug from whatever voltage it supplies to a 72v lifepo4 setup IF it's possible.

 

[The Mighty Volt]

A123 10Ah cells.

Google A123 AHR32113

 

[mvly]

I dont know if they will let you charge your ebike using their charging station. You kight kill something in their charger or might damage your battery.

Good luck in this venture.

 

[sangesf]

I dont know if they will let you charge your ebike using their charging station. You kight kill something in their charger or might damage your battery.

Good luck in this venture.

Oh it's not free (you need a CC), but was wondering what the charging voltage and amperage was, and if it was possible to setup some kind of Adapter/step down rig to work with 72v.

I know about 30 miles south of me, there ARE a couple of FREE ones, was curious if I could figure out a rig like I just mentioned. (Apparently the charging "plug" is the same on all these units from what I've read in the papers about these specific charging stations.. Just no mention of voltage or amps)

 

[jdb]

The connector is called SAE J1772. There are a couple of competing standards, but in the US for the next few years, I think J1772 will dominate. It supplies either 120VAC or 240VAC. There is a signaling protocol between the car and the charging station whose purpose is to communicate the charging current limit to the car, and communicate that there is a car present to the station. The station has a contactor in it that is normally open, even on the free versions. There is no negotiation of the voltage - the car must be capable of rectifying 240VAC. No, you cannot directly hook that cable into your bike battery pack, but you may be able to rig up a jig that feeds your standard charger with the J1772 connector.

I got one of the EE's to talk about the protocol at a local plug-in vehicle conference. It is a variable-pullup open-collector PWM. I have not confirmed the details of the following with any official source, I am just recalling from memory what we discussed on the conference floor.

Initial Condition: station provides 12V DC on the signal.
user plugs into the car
Car pulls down the signal to 9V
Station provides a PWM at 9V. The duty cycle is linearly proportional to the current limit. I don't know what the scale factor is, I didn't get it from him.
Car pulls down to 6V, station continues PWM at the new voltage.
Station closes contactor.

Could be worse. I certainly don't have any complaints. Just look at printer ink cartridges


Edit: Found a good source, with much more detail.

 

[neptronix]

They don't use A123.. they use some form of LG polymer cells.

Unless they have changed the formula since they launched the car.

 

[The Mighty Volt]

They don't use A123.. they use some form of LG polymer cells.

Unless they have changed the formula since they launched the car.

So who was using the AHR;s???

 

[neptronix]

Not sure. GM considered A123 but didn't go with them.

In October 2008 General Motors chose CPI (LG Chemical) to provide the battery systems for the first production version of the Volt.

http://en.wikipedia.org/wiki/Chevrolet_Volt#Production_model

 

[The Mighty Volt]

Not sure. GM considered A123 but didn't go with them.

In October 2008 General Motors chose CPI (LG Chemical) to provide the battery systems for the first production version of the Volt.

http://en.wikipedia.org/wiki/Chevrolet_Volt#Production_model

Ahhhhhhhhhhhh, cheers, thanks.

 

[neptronix]

No prob. Very common misconception. Pass the info along

 

[The Mighty Volt]

No prob. Very common misconception. Pass the info along

8) Will do thanks,