Prius C 12V battery

here's a pic from the toyota aqua. anybody got a part number for the 12V? battery specs like group size? it looks like a bitch to access for jump start and an even bigger bitch to change. look at that tie down bracket, is it stuck to the frame, or can it be removed?

 

Holy buckets, that's a bit dumb but then again, after four years I've never needed a jump so why worry?

 

i believe access to jump points is under the hood of course.

 

I looked for jump points (like on the standard Prius) under the hood when I was at a dealer looking at one. I could not find them...

Anyone know where they are?

 

Manual says you access the battery by removing the front panel under the rear seat and that's where you jump it.

 

Yeah i think you jump it directly at the battery terminals...i dont think they put in jump points

 

yup yup... that's where you jump it.. lol.

 

The location is ideal because of the weight distribution. Once the reason why i bought the C is because they cared about reducing weight and improving handling. I believe it's just a cover with two clip screws to get to the battery.

 

Thanks for posting this shot! I did not find it playing around on the Japan site but now I can see the battery better. Now if we know the size and weight it would be great.

I wanted to replce mine with one of these lite Li-Ion battery's.

Lithium Pros » Racing 12V Batteries

 

Uh-oh! There goes all that carefully planned weight distribution work they did back in engineering!

 

Toyota's engineering department won't mind if I help improve things further. hehe

 

anybody who works for toyota, can you please look up the part number for the 12V??? i dont care which battery it is, as long as optima comes out with a replacement

 

Browsing around, I find this image pretty amazing. I didn't know the 12v battery was also under the seat. Good to know.

 

If you're doing a mod, maybe the goal is to create 3x or 5x or even more battery capacity? That would be my goal at least. A *real* mod to the Prius C, and the only one worth wasting valuable money on, would be a mod that hacks the EV Mode button to allow unlimited speeds instead of 25mph, and a battery that had between 5 and 10 KWh storage. Of course 10 KWh probably wouldn't fit under the seat, it'd have to be a larger, modular upgrade that also takes up space where the spare tire is, but I could see it viable in the coming years with improved battery technology.

Just imagine a Prius C with a 10 KWh battery upgrade that you can plug in and charge for under $10,000. After owning the car for several years, it would be worth the investment. Just add on the cost of the upgrade to a refinanced car loan and you'll have a fully electric capable vehicle that also gets incredible gasoline mileage. It would be more practical than a Volt since the Volt barely goes 35 miles on EV Mode and only gets 35mpg when it runs out.

How far do you think a 10 KWh battery would pull a roughly 2500 lbs vehicle? 20 miles? Maybe more? Then getting 50mpg when the gas has to kick in? That'd be *better* than a Volt, although with only 60hp the electric engine would certainly be slower.

 

i am trying to find specs on how much the stock battery weighs, does anyone have a link to specs? or know the model number?

 

It weighs 10.5 kg (23.1 lbs), the same as Gen 2 battery without SKS, S34B20R.

Vincent