eganwp
10 mW
- Joined
- Feb 14, 2013
- Messages
- 22
- I confirmed with them Doc, they include 24 not 12. Pic is just a generic pic.
- of course there is. The owner is an electric engineer from what I understand. He said they took the 35A BMS, beefed up all the traces, shunts and wiring to allow for 50A continuous for my application. It took a little while for them to do this for me but its worth the wait for my application.
- sorry, I typed this wrong. Yes the charger is 88.8V to allow for 3.7V/cell balancing. That was my bad typing that. It doesn't really matter, it's a backup charger as Cellman sent me his 5A 88.8V which is BEEFY!
Can't wait. I've already rewired my phase lines on my motor, and am adding lots of switches and accessories to my bike. 3 speed control, regen adjustment, governor switch, etc. I'll be posting pics in my build thread as its my first ebike setup for me.
I purchased the cables so I can use software to program Paul's controller. My first try will be aimed for 45A (3C) cont as I live on an island with a ton of steep small hills. I'll keep you updated Doc on how it all works out. IMHO you made the right choice going headway. I was going to go lipo, but ive been using lipo packs for the past 6 years as I'm big into rc planes as my main hobby, and they just dont last if not taken extremely good care of with atorage charging, balancing a lot, and never draining too low. Even then, many of our hobbyking packs still puff (even nano's) in under 50 cycles. My Gens Ace and all my friends Hyperion packs are the best lipo packs we can find on the market so thats all i run now. Just too $$$ for an ebike application. Ive been running a123 cells in all my giant scale planes for years and love them! With lipo, i wanted an ebike that i can just plug in and not storage charge all the time, or have to spend lots of time balancing and maintaining as I spend way more than enough of my time doing that with my ~50 lipos for RC and 5 chargers. Plus, LiPos don't seem to do much more than 300-400 cycles typically, which I would blast through on a daily commuter so I'd have to buy new LiPos every year or two. Mine setup is an electric scooter (moped) so extra weight is no issue. Way lighter than sla!!!! Plus the 24s setup fits perfectly in my e-scooter battery compartment.
All the vendors couldn't deliver on a123 pouch cells (and I was slow researching) and now April said all she can get me are Korean A123 cells which I don't want. A person could buy used short tabs, or grey market long tabs, but I personally would never do that. I almost bought my a123 setup from Paul, but for what I wanted t would have been over $1500 which was just too expensive for me. No doubt excellent though! A123 stuff is getting harder and harder to find genuine now, so going the headway route is a great long term solution with reliable long life cheap cells. I don't need more than 2.5-3C for my application so these 40152 cells will be perfect in 24s. Currently planning to fan cool the entire pack just for fun.
Travis
- of course there is. The owner is an electric engineer from what I understand. He said they took the 35A BMS, beefed up all the traces, shunts and wiring to allow for 50A continuous for my application. It took a little while for them to do this for me but its worth the wait for my application.
- sorry, I typed this wrong. Yes the charger is 88.8V to allow for 3.7V/cell balancing. That was my bad typing that. It doesn't really matter, it's a backup charger as Cellman sent me his 5A 88.8V which is BEEFY!
Can't wait. I've already rewired my phase lines on my motor, and am adding lots of switches and accessories to my bike. 3 speed control, regen adjustment, governor switch, etc. I'll be posting pics in my build thread as its my first ebike setup for me.
I purchased the cables so I can use software to program Paul's controller. My first try will be aimed for 45A (3C) cont as I live on an island with a ton of steep small hills. I'll keep you updated Doc on how it all works out. IMHO you made the right choice going headway. I was going to go lipo, but ive been using lipo packs for the past 6 years as I'm big into rc planes as my main hobby, and they just dont last if not taken extremely good care of with atorage charging, balancing a lot, and never draining too low. Even then, many of our hobbyking packs still puff (even nano's) in under 50 cycles. My Gens Ace and all my friends Hyperion packs are the best lipo packs we can find on the market so thats all i run now. Just too $$$ for an ebike application. Ive been running a123 cells in all my giant scale planes for years and love them! With lipo, i wanted an ebike that i can just plug in and not storage charge all the time, or have to spend lots of time balancing and maintaining as I spend way more than enough of my time doing that with my ~50 lipos for RC and 5 chargers. Plus, LiPos don't seem to do much more than 300-400 cycles typically, which I would blast through on a daily commuter so I'd have to buy new LiPos every year or two. Mine setup is an electric scooter (moped) so extra weight is no issue. Way lighter than sla!!!! Plus the 24s setup fits perfectly in my e-scooter battery compartment.
All the vendors couldn't deliver on a123 pouch cells (and I was slow researching) and now April said all she can get me are Korean A123 cells which I don't want. A person could buy used short tabs, or grey market long tabs, but I personally would never do that. I almost bought my a123 setup from Paul, but for what I wanted t would have been over $1500 which was just too expensive for me. No doubt excellent though! A123 stuff is getting harder and harder to find genuine now, so going the headway route is a great long term solution with reliable long life cheap cells. I don't need more than 2.5-3C for my application so these 40152 cells will be perfect in 24s. Currently planning to fan cool the entire pack just for fun.
Travis
