Search found 352 matches

by rscamp
Oct 07 2016 4:54pm
Forum: Items Wanted
Topic: source for Neugart planetary gearboxes Canada / USA?
Replies: 1
Views: 510

Re: source for Neugart planetary gearboxes Canada / USA?

You can order from Neugart. Prepare to pay duty if you are shipping to Canada.
by rscamp
Mar 28 2016 11:33am
Forum: E-Bike Reviews & Testing
Topic: Cycle Analyst V3 preview and first beta release
Replies: 4549
Views: 817774

Re: Cycle Analyst V3 preview and first beta release

The average cell voltage readout is a nice feature that I have requested in the past. With so many different pack voltages it makes no sense to try to recall what pack voltage is for each bike, looking at cell voltages is much simpler and more consistent as most packs use similar per cell voltages,...
by rscamp
Mar 09 2016 4:29pm
Forum: E-Bike Reviews & Testing
Topic: Cycle Analyst V3 preview and first beta release
Replies: 4549
Views: 817774

Re: Cycle Analyst V3 preview and first beta release

I'll do some tests to see if I can replicate the issue. maybe it was caused by upgrading from pre v3 to release and kepping the settings? probably a complete new setup will solve that. My desktop test unit only goes down to about 4.5mph, so with some nice weather I got a chance to do some tests on ...
by rscamp
Oct 04 2015 3:43pm
Forum: E-Bike Non-hub Motor Drives
Topic: Bafang C961 display speedometer problem greater than 27mph
Replies: 4
Views: 594

Re: Bafang C961 display speedometer problem greater than 27m

The magnet is EXTREMELY close to the sensor. In fact, it is so close that I can honestly say they are like 0.2mm apart. I think I know what the problem may really be. The issue is the controller sensor is not able to sample the magnet fast enough. The LED blinking is an indication of each sample. W...
by rscamp
Oct 04 2015 5:54am
Forum: E-Bike Non-hub Motor Drives
Topic: Bafang C961 display speedometer problem greater than 27mph
Replies: 4
Views: 594

Re: Bafang C961 display speedometer problem greater than 27m

I have a BBS02-750w detuned to 18A and runs the C961 display. The bike is a 16" folder. So when the bike hits about 27.5mph or greater, the display gets funky and it starts reporting the speed backwards.. like jumps to 14, 13, 12mph, while i'm doing 28+ mph. When I put the bike on a stand, and yank...
by rscamp
Aug 07 2015 11:34am
Forum: E-Vehicles General Discussion
Topic: Are We Reaching the Electric Car Tipping Point?
Replies: 30
Views: 2907

Re: Are We Reaching the Electric Car Tipping Point?

I want EVs to be as affordable as ICE cars and bikes. That's all - price. I can live with a 100 km range - I top up every day anyway. It's the $40,000 upfront that keeps me away from a new EV. The cheapest second hand production EVs in Australia are about $16,000. For a 5 years old iMiEV. Still too...
by rscamp
Aug 06 2015 11:39am
Forum: E-Bike Technical
Topic: 18650 cells that are unsolderable.
Replies: 17
Views: 3254

Re: 18650 cells that are unsolderable.

The video shows the wrong tool and the wrong method for the job and results in heat being applied at least 4X longer than necessary. Instead, after preparation coil up the total amount of solder required on top of the battery and use a hammerhead tip.
by rscamp
Aug 05 2015 11:33am
Forum: Items for Sale - New
Topic: Compact Field Oriented Controller, ASI + Grin, limited run
Replies: 1237
Views: 249421

Re: Compact Field Oriented Controller, ASI + Grin, limited r

tightbox wrote:Has anyone tried this with an Astro Flight motor yet?
Yes. Anyone?
by rscamp
Jul 14 2015 5:37am
Forum: E-Bike Non-hub Motor Drives
Topic: Bafang BBS02 - non-bafang aftermarket crank arms available?
Replies: 16
Views: 5617

Re: Bafang BBS02 - non-bafang aftermarket crank arms availab

--freeride-- wrote:The schlumps crankarms have more Offset that the original Bafang, which are nearly straight. I would not want those.
I'm using the Schlumpf arms and they have so little offset my heels are prone to striking them at the hub.
by rscamp
Jul 09 2015 11:38am
Forum: E-Bike Non-hub Motor Drives
Topic: Bafang BBS02 - non-bafang aftermarket crank arms available?
Replies: 16
Views: 5617

Re: Bafang BBS02 - non-bafang aftermarket crank arms availab

Also there are very inexpensive unicycle arms that fit - which can be great if you want shorter arms...
by rscamp
Jul 09 2015 11:36am
Forum: E-Bike Non-hub Motor Drives
Topic: BBS02 + SRAM Dualdrive
Replies: 1
Views: 500

Re: BBS02 + SRAM Dualdrive

While there are a handful of threads covering a little of both after detailed searches I can't find any good reliability info on this configuration at ES. I have been keeping up with one owner of this combo at bentrider. Its going on an HPV FS26 already equipped with a SRAM Dualdrive (DD3), and I'v...
by rscamp
Jun 29 2015 5:49am
Forum: E-Bike General Discussion
Topic: Lipo failure
Replies: 108
Views: 12036

Re: Lipo failure

When I was flying R/C, we never let the high-C rated cells drop below about 3.5V and preferrably 3.6V. As Matt points out, 3.0V is way too low for these cells. Why this value persists on these boards and elsewhere must harken back to the olden days of 3C LiPos...
by rscamp
Jun 11 2015 12:05pm
Forum: E-Bike Non-hub Motor Drives
Topic: Programming the Bafang Middrive BBS01+BBS02
Replies: 1183
Views: 382142

Re: Programming the Bafang Middrive BBS01+BBS02

In my experience the basic % limits both speed and cadence, at least on mine. Yup. I found the assist level speed percentage limits both the top speed with pedelec and cadence. For example, setting maximum speed in the menu to 50km/h and setting speed percentage to 64% nets 64% of maximum cadence a...
by rscamp
May 04 2015 11:50am
Forum: E-Bike Non-hub Motor Drives
Topic: Programming the Bafang Middrive BBS01+BBS02
Replies: 1183
Views: 382142

Re: Programming the Bafang Middrive BBS01+BBS02

The cadence aspect of this is familiar - here's some hard data from Ken Taylor, although others had provided less quantitative observations on this some time earlier. My recollection is that the cadence percentage is referenced to 80 RPM for the BBS01 and 120 RPM for BBS02. Subjectively, based on m...
by rscamp
May 04 2015 5:24am
Forum: E-Bike Non-hub Motor Drives
Topic: Programming the Bafang Middrive BBS01+BBS02
Replies: 1183
Views: 382142

Re: Programming the Bafang Middrive BBS01+BBS02

Hold the phone. I discovered something today that significantly changes how I can use the BBS0X system. If it is documented here on the 'Sphere somewhere I guess I missed the memo. :) The assist level speed percentage limits the top speed with pedelec. For example, setting maximum speed in the menu ...
by rscamp
Apr 27 2015 11:59am
Forum: E-Bike General Discussion
Topic: The "Best" way to get outsiders interested in EVs?
Replies: 45
Views: 6944

Re: The "Best" way to get outsiders interested in EVs?

These are good points. Uncertainty is an issue. Range is a major issue. More charging stations help. Some people don't even need the charging stations though. It depends on the usage of the car. For a commuter car (EVs are great for that), charging at home is the norm. Charging at work is also often...
by rscamp
Apr 27 2015 5:10am
Forum: E-Bike General Discussion
Topic: The "Best" way to get outsiders interested in EVs?
Replies: 45
Views: 6944

Re: The "Best" way to get outsiders interested in EVs?

You must also include in your equation that after the 8-10yr useage the battery is still useable (stationary solar storage) with about 60-70% from its innitial cappacity. There is no $300 a year for battery maintainance. Also the EV car will at that time have still a good resell price (without the ...
by rscamp
Apr 26 2015 6:06pm
Forum: E-Bike General Discussion
Topic: The "Best" way to get outsiders interested in EVs?
Replies: 45
Views: 6944

Re: The "Best" way to get outsiders interested in EVs?

Well, its actually cheaper! But most ppl can't calculate. Just calculae what u would spend the next 8 years for gasoline and oil. (and the additional more maintenance). Spending 10k or 20k more for the battery is like buying a credit. Some ecar sellers also offer to rent the battery witha little mo...
by rscamp
Apr 26 2015 2:38pm
Forum: E-Bike General Discussion
Topic: The "Best" way to get outsiders interested in EVs?
Replies: 45
Views: 6944

Re: The "Best" way to get outsiders interested in EVs?

I'm already excited about EVs. But when it comes to actually buying an electric car, how can the average person justify it when the cost delta is this great?
image.jpg
image.jpg (179.98 KiB) Viewed 915 times
The cost is by far the biggest issue...
by rscamp
Apr 26 2015 8:51am
Forum: E-Bike Non-hub Motor Drives
Topic: Programming the Bafang Middrive BBS01+BBS02
Replies: 1183
Views: 382142

Re: Programming the Bafang Middrive BBS01+BBS02

My latest testing give me some results. I modified Basic tab parameters as below to save battery and increase comfort. I am still playing with "Work mode" parameter to try simulate torque sensor. I ended up with quite similar current values - a bit of a log progression gives finer adjustment at low...
by rscamp
Mar 14 2015 8:40pm
Forum: E-Bike Non-hub Motor Drives
Topic: New Bafang Crank-Drives
Replies: 4435
Views: 756017

Re: New Bafang Crank- DRives

Has anyone managed to find a source for straight, 155mm cranks for the BBS02? (Besides the old knees playing up, I need more clearance in my Alleweder velomobile). Left hand crank arms are easy enough to find it's just the right crank without a spider that is proving to be elusive. Easy Just Click ...
by rscamp
Mar 07 2015 5:04pm
Forum: E-Bike Non-hub Motor Drives
Topic: Is the BBS02 a better option over a direct drive hub motor ?
Replies: 47
Views: 8747

Re: Is the BBS02 a better option over a direct drive hub mot

It was claimed here https://www.electricbike.com/bafang-bbso2-750w-mid-drive/ that the current at maximum efficiency for the BBS01 is around 11A. As a guess, pro-rating for the power difference to a BBS02 gives a current at maximum efficiency of about 16A. Can anyone confirm? The motor should be mos...
by rscamp
Mar 07 2015 6:15am
Forum: E-Bike Non-hub Motor Drives
Topic: Is the BBS02 a better option over a direct drive hub motor ?
Replies: 47
Views: 8747

Re: Is the BBS02 a better option over a direct drive hub mot

At what current draw does the BBS02 operate most efficiently?
by rscamp
Feb 26 2015 6:12am
Forum: Battery Technology
Topic: Lifepo4's getting hot on charge
Replies: 12
Views: 965

Re: Lifepo4's getting hot on charge

With something like this, we should be thinking in terms of temperature rise over ambient. 45 Deg C absolute temperature means one thing in a 20 Deg C ambient and quite another in a 35 Deg C ambient. What matters to us is the 25 or 10 Deg C rise.