High Performance Lithium High Voltage Batteries?

[big4x4]

Hello There,
I am wondering if anyone can point me in the right direction. Right now I have a 3500W Full Suspension bike from Hi-Power Cycles that I absolutely love, but I kind of have the urge to get a little bit crazier like some of you hotshots on here. Right now I am running on the standard 78V nominal LiPo packs w/BMS at around 45A, but I am looking to run at 100V or so. I have tried the cheap hobby king route, but I accidentally left my ebike display on over the weekend and although the controller turned off, the display proceeded to drain my 24S hobby king pack down to 1.5V! Needless to say, there is a lot of puffage, and damaged cells, not worth it for me to cheap out. I am looking for a solid and reliable 100V LiPo or NMC pack with a reliable BMS. Any such thing? What are your recommendations. Thanks a bunch guys and gals.

 

[cwah]

From 80V and 3500W onward, only the lipo seem to be the relevant battery. I don't see how any NMC pack can do 100V at 3500W.

I'd say go for the nanotech and add the protection kit from methek.

 

[cal3thousand]

Sorry to put it this way, but if you treat your new expensive batteries the same way as you have your "value" batteries, you will just have a larger loss.

There's no substitute for proper care.

You could get a LVC/HVC/Parallel board set from Methods that will act like a BMS for LiPo. But it will only monitor at the cell level and be able to kill the throttle. It will not save your battery in the event that your "display" drains it over the period of several days; so I'm not sure if it solves your issue/desire

 

[wesnewell]

Ditto. if you drain any battery, regardless of cost, you're going to kill it.

 

[MadRhino]

IMO, you don't need more voltage unless you have a very slow motor in a small wheel. Most likely, you only need to set more power to improve the experience with your Ebike.
Your Lipo could have supplied a lot more power. Buy replacement batteries and upgrade your controller, and maybe wiring.
Edit: If you have a geared hub, you can't feed much more power than 3.5 Kw, and you'd have to buy a DD hub to upgrade power considerably.


Killing Lipo is easy, any Lipo no matter how expansive they are.
With Lipo, YOU need to be the BMS and take strict habits of battery management.
You got the lesson, do better next time.

 

[dogman dan]

Yeah, bummer you forgot and let your already mostly discharged battery drain down. Once on the edge of the cliff, not much left for absentminded mistakes. I know the feeling, I killed a ping the same way last year. My excuse was the 102F fever I had that day, but it's still real easy to do.

I don't know of any more high performance batteries than the HK stuff. You just need to spend more on battery protection next time. Mabye even just the cheap lv beepers would have given you a clue. About 4 of them going off at once is pretty loud and obnoxious. Maybe you'd have noticed that racket when they hit 3.5v if you had used something like that. Maybe not, if the garage is far from the bedroom.

My approach is relatively foolproof. Every ride the batts come off the bike and go into bunker storage. Easy since I don't use em daily. On a daily commuter, that would be a pita.