GREAT NEWS FOR BMC 1000W OWNERS!

[hi-powercycles]

The 50A controller is here, and it is awesome! I have tested it rather extensively during the past week, and it is what we have all been hoping for. It's reliable, stays cool, and outputs a steady 50A when accelerating or hill climbing. Top speed is 40 MPH +/- 1 MPH at 48V (good battery with minimal sag). Check out the video if you are interested: http://www.youtube.com/watch?v=guYPORM3nfw

Your local dealers should be receiving them very soon! The wait is over!

 

[Little-Acorn]

The 50A controller is where? Where can we get it, and what's the price?

Is it a "universal" type controller that works with all (or at least most) hub motors, with or without Hall sensors?

 

[morph999]

The 50A controller is where? Where can we get it, and what's the price?

Is it a "universal" type controller that works with all (or at least most) hub motors, with or without Hall sensors?

In my opinion, unless you are a bit wealthy, a 50amp controller is just too much. You have to find a battery that can handle that. You end up spending 2 or 3x more money. I have a 35amp controller and I can't buy any of the ping lifepo4 except maybe the 20ah or 30ah because I need a battery that can handle that much current. If you got the money, though, go for it. If you want to find out about BMC motors, do a search on here for them.

hi-powercycles is plugging his website, http://hi-powercycles.com . Looks like that controller is just for the BMC 1000w motor.....*cough* and everything on his website is basically ridiculously overpriced....especially his LIPO batteries.

 

[hi-powercycles]

I am in no way plugging my website. I honestly don't care where you purchase from. If you don't want to buy from us, buy from Comcycle USA or Cycle 9- Both places have great reputations and will likely have them soon enough. I am just an ebike enthusiast at heart. By the way, the LiPo's we sell are not overpriced at all- They all employ a proprietary BMS for 80A Continuous with 10Ah. When using a 51.8v 10Ah LiPo battery for example, on a fresh pack, they stay well above 55v during a 50A continuous drain. Try that with a common LiFePo4! This is why you will see faster speeds and acceleration using high end LiPo packs.

 

[will_newton]

Your local dealers should be receiving them very soon! The wait is over!

Umm, despite your comment, how long do you think the non-existent wait will be? 2 weeks? a month or two?

I saw on your site that the controller is rated 48-64v is that a "nominal" rating or a true rating?

 

[Hyena]

In my opinion, unless you are a bit wealthy, a 50amp controller is just too much. You have to find a battery that can handle that.

You girly-men really need to embrase lipo :lol:

 

[hi-powercycles]

Hello again. I know we personally have a small shipment (All spoken for except for maybe 2 or 3) that will be shipped here on the 18th (this month), I assume by the end of the month, they will start trickling down to your local dealers. These controllers will work with every V2 or V3 BMC motor (you will need to modify motor phases with thicker gauge wires). Of course, it should work with other motors too, however the user would be at his own risk trying to match the correct sequence. 36-64 volt is the targeted (nominal rating), I will know for sure when the production version arrives. Have a good one.

 

[snowranger]

Noticed that removing the 50 amp controller from the kit reduces the price by $100. Is that around what you are selling them for?

 

[voicecoils]

Thanks for the update hi-powered.

Some of us are not fussed that you're a dealer as well as an enthusiast.

The BMC V3 has been held back by lack of appropriate controllers so if this controller works it's great news.

A few questions:

* What FETs does the controller use?

* What is the maximum voltage allowed?
(specify actual voltage if possible since a "48v pack", eg 16 cells in series, of lifepo4 is 58.4v off the charger and lipoly is 67.2v off the charger)

Thanks and hope your business has recovered from the fire!

 

[hi-powercycles]

Thank you voicecoils! Anyways, for this iteration, it uses 18x IRFB4110 Mosfets. There will be future versions with 24x 4110's and 12x 4110's... Please excuse the website for the next few days as I am working hard to update it. No, sorry, it will not be $100. It will be somewhere in the low 200's. Right now, the version I have will work up to 67v MAX, however, it should be raised a few volts to accommodate a 20 Cell Lifepo4 pack for the batch shipping out in a week...

 

[TPA]

Is it a sensorless controller?

 

[morph999]

In my opinion, unless you are a bit wealthy, a 50amp controller is just too much. You have to find a battery that can handle that.

You girly-men really need to embrase lipo :lol:

I guess those limitations are really becoming a thing of the past. I'm ordering some lipo in a week or two. Lipo is almost as cheap as SLA's.

 

[oatnet]

Thanks for the update, I'll be interested to try this. What are the case dimensions? Do you have pics of the controller? It would be nice to see next to an xlyte controller for scale.

-JD

 

[snowranger]

In my opinion, unless you are a bit wealthy, a 50amp controller is just too much. You have to find a battery that can handle that.

You girly-men really need to embrase lipo :lol:

I guess those limitations are really becoming a thing of the past. I'm ordering some lipo in a week or two. Lipo is almost as cheap as SLA's.

Morph,

Don't forget the additional equipment you'll need, i.e. a low voltage cut off, balancer, and charger. That will add another $150 or so, unless you want to charge commando style.

 

[Iroise2000]

Hi !
I've read that controller for BMC 1000W is a problem. I have a BMC V3 1000W since last june 2009, and ride it with a KEB Kelly controller KEB72450 peak 150A controller. Since 6 month no problem !, it run very smooth and i can program it.
The only "small" problem i ahd, was melted phase wire. I replace them from controller to externally of the hub. Now no problem.
I run a 66V Lipo 10ah battery 18S2P. I have a cylce analyst since one week, and i see that i run max 70 A, but most of the time 20-30. With 50A, i go uphill 6% with 50 km/h and on flat bike goes easy over 70 km/h, but it is insane for me. The max i read on the cycle analyst is 4100W !
So i hope all of yu can test this V3 motor, so much torque, very light hub, and very fast...hope the new BMC controller will go fine. The kelly one is very very nice too.

Yann
Excuse my bad english !

 

[Jerome Daoust]

Hi Chris (Hi-Power Cycles), the 50A controller sounds promising.

Could you work with Ken at ItsElectric to have him test and compare with all the others he has tested. Or maybe Ken will have access himself to this 50A controller soon.

BTW, nice work in updating your website.

Thank you, Jerome.

 

[oatnet]

What is the actual pack configuration your test? Early in the video, it looks like the pack is at 66v while you are drawing 2-3amps. At 3:34 in the video, it looks like the pack has dropped to 56v under a 50a load, so you are pulling @3kw, and the highest speed I can make out is 37.4mph.

-JD

 

[The Stig]

The 50A controller is where? Where can we get it, and what's the price?

Is it a "universal" type controller that works with all (or at least most) hub motors, with or without Hall sensors?

In my opinion, unless you are a bit wealthy, a 50amp controller is just too much. You have to find a battery that can handle that. You end up spending 2 or 3x more money. I have a 35amp controller and I can't buy any of the ping lifepo4 except maybe the 20ah or 30ah because I need a battery that can handle that much current. If you got the money, though, go for it. If you want to find out about BMC motors, do a search on here for them.

hi-powercycles is plugging his website, http://hi-powercycles.com . Looks like that controller is just for the BMC 1000w motor.....*cough* and everything on his website is basically ridiculously overpriced....especially his LIPO batteries.

I'm considering this battery. http://www.evcomponents.com/ProductDetails.asp?ProductCode=H4810
What do you guys think of that battery? $350 for 100A discharge, 48V 10AH LiFePO4, 2000 cycles to 70%. 5.4Kg. Over the long run probably cheaper than Lead acid.

Might fit in this battery box with a bit of grinding to the plastic: http://www.fuertecases.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=T5500&Category_Code=S3

I sent them an email but no response.

 

[Russell]

I'm considering this battery. http://www.evcomponents.com/ProductDetails.asp?ProductCode=H4810
What do you guys think of that battery? $350 for 100A discharge, 48V 10AH LiFePO4, 2000 cycles to 70%. 5.4Kg. Over the long run probably cheaper than Lead acid.

Might fit in this battery box with a bit of grinding to the plastic: http://www.fuertecases.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=T5500&Category_Code=S3

I sent them an email but no response.

http://endless-sphere.com/forums/viewtopic.php?f=4&t=14015


-R

 

[morph999]

The 50A controller is where? Where can we get it, and what's the price?

Is it a "universal" type controller that works with all (or at least most) hub motors, with or without Hall sensors?

In my opinion, unless you are a bit wealthy, a 50amp controller is just too much. You have to find a battery that can handle that. You end up spending 2 or 3x more money. I have a 35amp controller and I can't buy any of the ping lifepo4 except maybe the 20ah or 30ah because I need a battery that can handle that much current. If you got the money, though, go for it. If you want to find out about BMC motors, do a search on here for them.

hi-powercycles is plugging his website, http://hi-powercycles.com . Looks like that controller is just for the BMC 1000w motor.....*cough* and everything on his website is basically ridiculously overpriced....especially his LIPO batteries.

I'm considering this battery. http://www.evcomponents.com/ProductDetails.asp?ProductCode=H4810
What do you guys think of that battery? $350 for 100A discharge, 48V 10AH LiFePO4, 2000 cycles to 70%. 5.4Kg. Over the long run probably cheaper than Lead acid.

Might fit in this battery box with a bit of grinding to the plastic: http://www.fuertecases.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=T5500&Category_Code=S3

I sent them an email but no response.

The evcomponents.com headways 48v10ah lifepo4 is okay for 35amp controller or below but nothing more than that.

 

[oatnet]

The evcomponents.com headways 48v10ah lifepo4 is okay for 35amp controller or below but nothing more than that.

I disagree. The 38120S cells are good for 5c continious, perfect for a 50a controller. Although they are rated for 10c (100a) burst, I would not run a 100a continiuous load from a 1p pack. A 2p (20ah)pack would do it just fine at 100a.

In my opinion, unless you are a bit wealthy, a 50amp controller is just too much.

I disagree. I think this is related to the performance you want out of your ebike not financial status. I have been running a 100a Kelly for a few years now, and I don't think it is too much, and there are a lot of people running methods' controller that probably don't agree If you had said "I don't need 50a to meet my personal ebike performance needs" then fine.

It's not like the performance capability is wasted, or that batteries to run it are significantly more expensive. Like any hobby, you can buy cheap and replace it more often, I prefer to buy it right the first time.

-JD

 

[The Stig]

The evcomponents.com headways 48v10ah lifepo4 is okay for 35amp controller or below but nothing more than that.

I disagree. The 38120S cells are good for 5c continious, perfect for a 50a controller. Although they are rated for 10c (100a) burst, I would not run a 100a continiuous load from a 1p pack. A 2p (20ah)pack would do it just fine at 100a.

In my opinion, unless you are a bit wealthy, a 50amp controller is just too much.

I disagree. I think this is related to the performance you want out of your ebike not financial status. I have been running a 100a Kelly for a few years now, and I don't think it is too much, and there are a lot of people running methods' controller that probably don't agree If you had said "I don't need 50a to meet my personal ebike performance needs" then fine.

It's not like the performance capability is wasted, or that batteries to run it are significantly more expensive. Like any hobby, you can buy cheap and replace it more often, I prefer to buy it right the first time.

-JD

Thanks for the input. I wonder why they can't be run over half what they are rated for...

All I have to say to any financial argument. The initial and running cost of any car completely eclipses any costs of a fairly high end ebike. Cars seem to be everywhere so... why not ebikes.

 

[oatnet]

Thanks for the input. I wonder why they can't be run over half what they are rated for...

Hopefully I am answering the correct question - I think you are asking why the Headways can't be run at 10c continiously. I have seen a variety of ratings, but most common are 5c continious and 10c burst, so you should be able to run them for a short period at 10c without issue, but 5c all the time. The higher the c, the more wear and tear on the cell, so you can charge them fewer times. The voltage also drops significantly, and more heat is generated.

There is also how long of a run you get with a charge - at 1c, the battery will supply current for an hour - so with the headway cells, that is 10a for 60 minutes. At 10c, you would theoretically get 100a for (6) minutes of run time, which is great for a exhibition bike but not much for a commuter.

-JD

 

[The Stig]

Ah of course. I see now that it says on the website max continuous is 6C or 60A for that pack.

 

[oatnet]

Ah of course. I see now that it says on the website max continuous is 6C or 60A for that pack.

I typically see sites selling the 38120s listing 3c, 5c, 10c, and once even 15c continuous ratings, this is the first I've heard 6c, which website are you referring to? At any rate, Victoria gave me testing documentation that said 5c, so that is what I go by. I guess their process/powder could have improved since then, maybe there is some bleed-in from the LifeBatt cells they are now manufacturing.

Like I said though, I size my packs big enough to run longer than the 12minutes a 5c discharge would allow, 2c is 30 minutes run time, longer if you don't bury the throttle all the time.

-JD