Suzuki gets an upgrade from Sony Lithium to Turnigy Lipo

[drewjet]

I have put about 7500 miles on my Suzuki SP200 and my batteries are getting tired. I had Sony VT 26650 cells in it run as 18S12P for approx 75 volts and 32AH. Reality was closer to 25AH. It has gotten to the point that I could not make the 8.5 mile commute to work at a safe speed. So time to upgrade. Hobby King was running a special no shipping sale in the US so jumped on 20 of the 5S 5000MaH 20C Turnigys http://www.hobbyking.com/hobbyking/stor ... duct=15008 Price to my door $827. These will be arranged 20S5P for 85 volts and 25AH.

Here is a pic of the old Sony cells 55 Lbs

2010-11-13 15.14.11.jpg

(82.89 KiB) Downloaded 455 times

[drewjet]

New Cells

2010-11-03 17.19.27.jpg

(82.83 KiB) Downloaded 453 times

Begining of construction

2010-11-08 14.55.29.jpg

(63.45 KiB) Downloaded 453 times

Taking the above and making into one pack to be 5S5P

2010-11-08 15.01.12.jpg

(57.35 KiB) Downloaded 453 times

I took the 1 gauge wire and unfurled it so that I could parallel all the packs main wires

2010-11-08 14.12.59.jpg

(92.84 KiB) Downloaded 453 times

Making the parallel conections

2010-11-08 14.13.23.jpg

(60.64 KiB) Downloaded 453 times

[drewjet]

One completed pack, 3 to go

2010-11-08 15.08.21.jpg

(59.2 KiB) Downloaded 450 times

2010-11-08 15.08.31.jpg

(44.59 KiB) Not downloaded yet

4 Packs done and ready to make into one large battery

2010-11-15 13.22.59.jpg

(69.51 KiB) Downloaded 450 times

2010-11-15 13.23.13.jpg

(64.79 KiB) Downloaded 450 times

31 Pounds of Lipo goodness

2010-11-15 13.23.13.jpg

(64.79 KiB) Downloaded 450 times

Completed Pack ready to mount

2010-11-15 13.44.14.jpg

(60.01 KiB) Downloaded 450 times

[drewjet]

And remounted

2010-11-22 17.03.06.jpg

(67.69 KiB) Downloaded 443 times

2010-11-22 17.02.56.jpg

(113.83 KiB) Downloaded 443 times

2010-11-22 17.03.23.jpg

(120.49 KiB) Downloaded 443 times

[drewjet]

I have about 60 miles on it since the upgrade and am loving it. I can feel the less weight. and the acceleration is much better. I can go full speed all the way home and still only use about 12AH. Range should be close to 20 miles, especially if I go a bit easy on the throttle, but what fun is that.

[liveforphysics]

Outstanding job!

[maydaverave]

Awesome bike. Do you have a build thread for the whole bike and if so can you post a link?

[ktronik]

Love the packing!!!! Now thats a big 9v cell!!!

K

[pgt400]

Wow...and all the cells were good? I bought 6 3S packs from HC last month...2 had dead 1 cell from the start. How do you charge them? Did yo P the balance leads too?

[drewjet]

Thanks for the compliments. I did not do a build thread for the bike. However in my signature is a link to it on EV Album. If you have any specific questions, I would be happy to answer them here.

Luckily all125 cells were good. Its a bit tough to see in the picks, but yes all 6 ballance leads of the 5 pack group are paralleled. They come out to a RS 232 connector. I use an FMA Balance Pro6 Lipo Charger to charge them, 1 for each pack of 5 cells. Unfortunately they are out of production and no longer available.