kingjamez
100 W
Newagebike said:Welding is no problem for me steel or aluminum. I will check out Luna.
Not if it's an unweldable alloy. Who knows what alloy you'll get and whether what the factory says is actually true?
Newagebike said:Welding is no problem for me steel or aluminum. I will check out Luna.
kingjamez said:litespeed said:You can easily hit 60 mph on 84 volts (20s). That seams to be the go to voltage now days. I have a QS 205 3.5T in a 17" rim running 20s 23 amp battery with a Max E. it does 60 mph before any flux weakening. In the past I was a 24s 100 volt guy and would again but the ease of 20s is nice.
I'd say you should be looking at a 30 amp pack at minimum of any high amp cell ( VTC 4, 5 or 6s, 25R etc.) but 40 amp would be better for any distance at 45 mph.
Tom
What wh/mile at 45mph are you getting with your QS205 3.5T/17" rim? I'm 3/4 the way through my build of the same setup right now.
-Jim
What battery are you using, did you build it, buy it or have someone make it for you? I am in the battery phase now.litespeed said:You can easily hit 60 mph on 84 volts (20s). That seams to be the go to voltage now days. I have a QS 205 3.5T in a 17" rim running 20s 23 amp battery with a Max E. it does 60 mph before any flux weakening. In the past I was a 24s 100 volt guy and would again but the ease of 20s is nice.
I'd say you should be looking at a 30 amp pack at minimum of any high amp cell ( VTC 4, 5 or 6s, 25R etc.) but 40 amp would be better for any distance at 45 mph.
Tom
Newagebike said:What battery are you using, did you build it, buy it or have someone make it for you? I am in the battery phase now.litespeed said:You can easily hit 60 mph on 84 volts (20s). That seams to be the go to voltage now days. I have a QS 205 3.5T in a 17" rim running 20s 23 amp battery with a Max E. it does 60 mph before any flux weakening. In the past I was a 24s 100 volt guy and would again but the ease of 20s is nice.
I'd say you should be looking at a 30 amp pack at minimum of any high amp cell ( VTC 4, 5 or 6s, 25R etc.) but 40 amp would be better for any distance at 45 mph.
Tom
Thanks, I will have to look into the best configuration for my motor/my needs for the Battery pack. Over 600 cells will weigh to much at the very least.litespeed said:Newagebike said:What battery are you using, did you build it, buy it or have someone make it for you? I am in the battery phase now.litespeed said:You can easily hit 60 mph on 84 volts (20s). That seams to be the go to voltage now days. I have a QS 205 3.5T in a 17" rim running 20s 23 amp battery with a Max E. it does 60 mph before any flux weakening. In the past I was a 24s 100 volt guy and would again but the ease of 20s is nice.
I'd say you should be looking at a 30 amp pack at minimum of any high amp cell ( VTC 4, 5 or 6s, 25R etc.) but 40 amp would be better for any distance at 45 mph.
Tom
I built my own. I first built an 800Watt second capacitor dishcharge welder then bought a ton of Makita battery packs from Dr Bass. Pulled all the cells and sorted them. I originally built a 24s15p pack which I down sized to 20s15p for my present build. I wanted high C batteries at an affordable price and I'm a do it myself kinda guy. I can pull 200 amps out of the pack but kinda at the limit now. I'll be building another out of VTC 5 or 6's for the next pack and go with a 30 to 40 amp pack next time around. At bicycle speeds (20 mph) I'm good for about 45 miles and at 35 mph average about 25 ish miles if I'm smooth on the throttle. I'm sure at 45 mph it would be 15 to 20 miles in a full tuck at best. Never tried that. Mine if for fun by myself. Long trips I take my safer and more comfortable Can Am Spyder Limited.
I'm thinking 80 amp pack is not doable in the frame your wanting. To do a 78 amp pack of 3 amp cells x 24s would be 624 cells. My first pack was 360 cells and to do that I had to use the cover spacers on both sides to get cells to fit end to end side to side in the battery compartment. If I would have done a complete custom shaped pack I think around 500 is doable but with wiring and other things that need to go in there it's going to be tight.
24s20p of good 3 amp cells would be a 60 amp pack and 4200 watt hour pack at 80% ....would weigh a ton but would last awhile. Also be able to put out 400 amps peak!
Good luck with your bike. Sounds pretty awesome.
Tom
MadRhino said:First make it clear. Do you mean a battery capable of supplying 80A discharge current, or a battery that has 80 A/h capacity ?
The LG Hg2 is capable of 20A discharge and has a 3A/h capacity. 24s 4p will make a 12A/h battery capable of 80A discharge.