Hello from Cambridge Ontario Canada
- Thread starter bootsauce
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PedalUma
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- Region
- USA
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- Petaluma, CA
Welcome, Jeff.
What do you want to know? I make local bikes for friends and neighbors electric in California. This is hands on and I do not ship. But maybe this website will help answer some questions or generate questions: pedaluma.com. I just made it and I am a bike mechanic not a website designer.
What do you want to know? I make local bikes for friends and neighbors electric in California. This is hands on and I do not ship. But maybe this website will help answer some questions or generate questions: pedaluma.com. I just made it and I am a bike mechanic not a website designer.
bootsauce
New Member
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- Canada
Thx for the welcome guys. I come from a motorcycle background but also know a fair bit about electric RC aircraft. Wound a bunch of brushless motors etc a while back so I have an understanding of electrics. My first pursuit has been with the befang 750 watt mid drive kit. I'm now shopping for a battery. My understanding is the high voltage battery might be more efficient [52 volt ] in terms of draw/ current but we are also carrying more cells and more weight. Trade-offs much light electric flight really so I get it. lol
I'm curious to know if there are certain cells that outperform others. Samsung 29E 18650 Cells keep popping up as a good cell to have but I just got started shopping so I'm looking for advice on batteries guys. I'm more about distance than speed. , Bought the 750 watt unit to save a bit and dont really need to latest and fastest. I'm in my 60`s.
Also, don't really like Amazon much, would rather support local shops but man, the price differences on batteries are bewildering. What batteries should I watch out for or is it more about cell type? Thx In advance. Just a few questions I have.
I'm curious to know if there are certain cells that outperform others. Samsung 29E 18650 Cells keep popping up as a good cell to have but I just got started shopping so I'm looking for advice on batteries guys. I'm more about distance than speed. , Bought the 750 watt unit to save a bit and dont really need to latest and fastest. I'm in my 60`s.
Also, don't really like Amazon much, would rather support local shops but man, the price differences on batteries are bewildering. What batteries should I watch out for or is it more about cell type? Thx In advance. Just a few questions I have.
indianajo
Well-Known Member
Advertised cells in batteries have little to do with what is actually in them. Main thing to avoid is batteries assembled out of flashlight cells, instead of high current bicycle batteries. Maximum allowed current should be specified. My battery has 50 A maximum allowed current. My largest controller will draw 30 A.
There are thousands of sources of batteries. Having received 2 piles of trash via amazon & ebay, I trust two US vendors. lunabike.com and ebikeling.com .
Certain terrain can burn motor windings. Long slow full throttle runs up steep grades, over 20 minutes, can burn geared hub motor windings. What part of Canada you live in matters. 52 v batteries are useful for running DD hub motors at 30-40 mph on flat ground. Ebikeling has stopped selling 48 v batteries, limiting stock to 36 V. I tried to buy a Mac12 48 v motor from electric-bikes.com. He refused to sell me one because we have hills in Indiana, I have a 48 v battery and I carry 80 lb groceries. He accused me of running a pedicab.
Mid drives are somewhere in the middle versus geared & DD hub drives. They mostly are limited to 350 W nominal, to maintain compatibility with the European market. They mostly have thermal sensors that cut them off when they get to hot.
There are other battery vendors that people on here trust. Grin tech in vancouver is one, which I don't deal with because of the problems with US Customs.
Batteries from integrated electric bike vendors are generally reliable. In general they are much more expensive per watthour than batteries from the above 3 vendors. Many integrated bikes are designed for a custom packaged battery, and nothing else will fit.
There are thousands of sources of batteries. Having received 2 piles of trash via amazon & ebay, I trust two US vendors. lunabike.com and ebikeling.com .
Certain terrain can burn motor windings. Long slow full throttle runs up steep grades, over 20 minutes, can burn geared hub motor windings. What part of Canada you live in matters. 52 v batteries are useful for running DD hub motors at 30-40 mph on flat ground. Ebikeling has stopped selling 48 v batteries, limiting stock to 36 V. I tried to buy a Mac12 48 v motor from electric-bikes.com. He refused to sell me one because we have hills in Indiana, I have a 48 v battery and I carry 80 lb groceries. He accused me of running a pedicab.
Mid drives are somewhere in the middle versus geared & DD hub drives. They mostly are limited to 350 W nominal, to maintain compatibility with the European market. They mostly have thermal sensors that cut them off when they get to hot.
There are other battery vendors that people on here trust. Grin tech in vancouver is one, which I don't deal with because of the problems with US Customs.
Batteries from integrated electric bike vendors are generally reliable. In general they are much more expensive per watthour than batteries from the above 3 vendors. Many integrated bikes are designed for a custom packaged battery, and nothing else will fit.
PedalUma
Well-Known Member
- Region
- USA
- City
- Petaluma, CA
Bootsause, Good stuff. You are well ahead of the curve. Think about the shape of your frame and where you want the added weight of a battery. If you were a nautical engineer where would you put additional weight on a boat? Less is often more because you will need to carry the full weight of a battery for the first mile and 100% of the time even if you use its full capabilities only the final .005% of the time. If 90% of your rides are under say, 12Km, than focus on a battery that will do that with a minimum of weight. I like the 3200Mah cells but the higher end ones such as Samsung are not available now because of supply chain issues. People who know say that better cells are more important than Voltage or Watt/hours. Cheep cells suck. 48V will be fine. 52V to the BBS02 is thrilling at first, but once that is done it is too thrilling for daily use in my opinion.
You will be drawing something like 200 Watts or less most of the time so a 200 Watt/hour battery will last for about an hour's ride. 600Watt/hours will last for about a three-hour ride but not really because its added weight need to be carried the first mile, n2, n3.
You will be drawing something like 200 Watts or less most of the time so a 200 Watt/hour battery will last for about an hour's ride. 600Watt/hours will last for about a three-hour ride but not really because its added weight need to be carried the first mile, n2, n3.
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bootsauce
New Member
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- Canada
Got it, carrying extra battery capacity translated into carrying extra weight if not needed for daily use.. Good point.
I'm finding the samsung cells advertised in battery packs so I'm assuming you mean single cells.
I should mention that I have a feeling this isn't going to be my first e bike and understand how important it is to get a good battery pack as opposed to cheaping out. lol
I have chosen a mild sprocket or torquey set up with a 42 tooth chainring but I'm wondering if that gives broader range drawing less current or would I get more range with a larger chainring AKA faster but drawing more amps? My head thinks about props in relation to battery duration, I'm sorry but I'm trying to get my head around how the two relate. BTW Electric flight draws might higher currents for far fewer minutes. I mostly used electrics on gliders for climbs out so running speed controllers to their max is common if only for a few seconds. Changing gears on these mid drive motors is like changing props on RC aircraft so it seem logical to me that asking less of the system increased duration.
Just thinking out loud, please correct me if I;m wrong
PedalUma
Well-Known Member
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- USA
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- Petaluma, CA
On the BBS02 42-T will be nice. Also change your chains often with good ones. You will need the Gear Sensor. What this does is cuts of power for a second when the shift cable is in motion - otherwise CRUNCH. These motors put out a lot of power and will mash chains and cassettes without the Gear Sensor when shifting under load, particularly on a slope. But Ontario is not too bad for hills. You will not need the kit's brake lever cut-outs. These ad spaghetti to the handlebar and are a legacy from the days of front hub motors with throttles. You do not and can not understand what I am about to say: You do not need the throttle. These bikes have a cadence sensor, when you pedal slower it gives more power regardless of pedal pressure. Every variable impacts every other. Just pick two you want to nail down and the others will sort themselves out from there.
bootsauce
New Member
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- Canada
bootsauce
New Member
- Region
- Canada
Hi there, I assume you mean Brantford?
The trails in my area are amazing. I have traveled from Cambridge through Brantford all the way to Dundass. I can also go north toward Kitchener following the river trail. Endless trails really, I'm looking forward to this spring with electrics to help extend my range.
bootsauce
New Member
- Region
- Canada
I want to believe that, I really do. Lol
Our days this past week have been bitterly cold but sunny and personally, I love those rare winter days when the temps say one thing but the warmth of the sun says another. I was out in -10 c temps with no gloves for example.
PedalUma
Well-Known Member
- Region
- USA
- City
- Petaluma, CA
Bootsauce, I thought you may get a kick out of this: https://kottke.org/21/02/the-ice-bike-with-circular-saw-wheels?utm_source=nextdraft&utm Just attach the BBS02 and don't fall off.
If you want to see some recent builds from the other CA look a pedaluma.com. We are doing a Covid-safe group electric bike ride this morning. It is fun to ride with various setups side-by-side.
If you want to see some recent builds from the other CA look a pedaluma.com. We are doing a Covid-safe group electric bike ride this morning. It is fun to ride with various setups side-by-side.
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bootsauce
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- Canada
bootsauce
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- Canada
thx for that. Lol. I have a bit of experience with studs but not carbide tips saw blades. lol
I briefly check out your site and will be back for more. thx
I like that cover shot of the bikes and bench. Reminds me of my hang gliding days. I used to dream about lookouts like that I could run off of. Lol
I briefly check out your site and will be back for more. thx
I like that cover shot of the bikes and bench. Reminds me of my hang gliding days. I used to dream about lookouts like that I could run off of. Lol
bootsauce
New Member
- Region
- Canada
thx again. I look at that area from a ridge soaring pilot perspective. It looks like an ideal terrain for paragliders and hang gliders with many slopes.
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