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by dogman dan
Feb 20 2020 8:00am
Forum: E-Bike General Discussion
Topic: Advice for a kit for a specific route
Replies: 13
Views: 359

Re: Advice for a kit for a specific route

Don't need regen, or statorade. Your hill is easy,,, unless you are a huge guy. Charge daily, or at least every second or third day. Don't run the battery to empty just cuz you can in a week. The battery will prefer many short cycles, to any number of deep discharges. Charge when its about half empt...
by dogman dan
Feb 20 2020 7:52am
Forum: E-Bike General Discussion
Topic: Good-bikes, Bad-bikes to convert??
Replies: 20
Views: 5590

Re: Good-bikes, Bad-bikes to convert??

Wow, you really dug for this thread. Posts by Tyler Durden and Reid Welch. Best deals on bikes I ever got, were estate sales. But then the bikes are 20-40 years old. Takes a long time, but eventually the guy with 50 bikes dies. I paid 30 bucks for my vintage steel centurion road bike. Best bike I ow...
by dogman dan
Feb 20 2020 7:32am
Forum: E-Bike General Discussion
Topic: Best Value fast ebike for my commute?
Replies: 32
Views: 606

Re: Best Value fast ebike for my commute?

More suspension better, unless its cheap sucky suspension. No, you aren't going to average 30 mph, unless you cruise 40, in any city. I wont knock the mid drive, but my advice to use a rear direct drive hub motor for your particular commute remains the same. I speak from 5 years of e bike commuting....
by dogman dan
Feb 20 2020 7:22am
Forum: E-Bike General Discussion
Topic: Hunting/mountain E-Bikes
Replies: 10
Views: 220

Re: Hunting/mountain E-Bikes

Yeah, curious what kind of hunting. I used to bird hunt by motorcycle. No problem to carry a few quail or doves in the hunting vests game pocket. But I see a lot of deer, elk and turkey by e bike up in the mountains today. Don't see them on a gasser. Many trips is well worth it for a season of good ...
by dogman dan
Feb 19 2020 8:44am
Forum: E-Bike General Discussion
Topic: 40k flat commute @ 40k/hr, Direct Drive or Geared?
Replies: 5
Views: 212

Re: 40k flat commute @ 40k/hr, Direct Drive or Geared?

yeah, 1000 wh battery never really puts out all 1000 watt hours, out on the road. Charge to 100% if you will regularly discharge below 20%. 20 to 90 ideal, but nothings ideal in real use practice. Cold ass day, you will have to charge to 100% and discharge deeper, because your power went to warming ...
by dogman dan
Feb 19 2020 8:11am
Forum: E-Bike General Discussion
Topic: Best Value fast ebike for my commute?
Replies: 32
Views: 606

Re: Best Value fast ebike for my commute?

Hmm. 30 mph cruise bike easy peasy. 35, and assuming you mean to pedal at that speed, amazingly harder to pull off. This is where I start saying get a small motorcycle, to a lot of first posters, those that are older, fatter, etc. But you are an avid cyclist, likely still able to break or wear out c...
by dogman dan
Feb 17 2020 8:17am
Forum: E-Bike General Discussion
Topic: 40k flat commute @ 40k/hr, Direct Drive or Geared?
Replies: 5
Views: 212

Re: 40k flat commute @ 40k/hr, Direct Drive or Geared?

DD, not so much for durability though, but for the quieter operation at speeds above 15 mph. At 40 kph/25 mph, a geared hub can get just a bit noisy, especially later on after it slings some of the grease off the gear surfaces. Not a lot of hills to coast down, so the better coasting of the geared h...
by dogman dan
Feb 16 2020 8:41am
Forum: E-Bike General Discussion
Topic: Advice for a kit for a specific route
Replies: 13
Views: 359

Re: Advice for a kit for a specific route

Yeah, you always want more speed and power pretty quick, So I rarely advise for 36v systems. Nothing wrong with a mid drive!! I just wanted to point out that I climbed a very similar length and grade hill commuting in a hot desert for years, and never melted a motor commuting, except for a very poor...
by dogman dan
Feb 16 2020 8:34am
Forum: E-Bike General Discussion
Topic: Ut Oh Cooked Another
Replies: 47
Views: 961

Re: Ut Oh Cooked Another

Thanks for the clarification, hot day, ride around till the motor is at a pretty hot equilibrium temp, then run it up a steep hill. It (the big muxus) didn't melt in 20 min riding. It did take a while. The problem is mostly the load up that hill, but starting up it already hot was the last straw for...
by dogman dan
Feb 15 2020 8:58am
Forum: E-Bike General Discussion
Topic: Advice for a kit for a specific route
Replies: 13
Views: 359

Re: Advice for a kit for a specific route

Still less than 500 feet of vertical in one mile. Not saying that's not a hell of a hill, but its going to be easily slayed by most motor kits over 500 watts. I would say, go with a kit that has a 500w rated motor, with 48v battery. That's a 1000w setup, which should have you going back up that hill...
by dogman dan
Feb 15 2020 8:50am
Forum: E-Bike General Discussion
Topic: Ut Oh Cooked Another
Replies: 47
Views: 961

Re: Ut Oh Cooked Another

Not surprised by a few of those roasts, but you'd think the big muxus would have lasted, even on 72v 40 amps. I got kind of tired of roasting motors, which I did pretty often when I ran 72v. That 3000w power was nice, but I only got away with it in the cold winter weather. Best advice so far, going ...
by dogman dan
Feb 14 2020 9:21am
Forum: E-Bike Technical
Topic: Please review this before I place an order
Replies: 4
Views: 230

Re: Please review this before I place an order

Mid drive it would be better. especially if the weight gets really big. Not that you can't do a heavy rig up hills with a hub. But a strong mid drive will be better. DO NOT pick the fast wind for a trailer hauling hub motor. You want the slower wind. Because all that weight will have you going slowe...
by dogman dan
Feb 14 2020 9:18am
Forum: E-Bike Technical
Topic: New E Fat bike build help!
Replies: 6
Views: 378

Re: New E Fat bike build help!

Fat bike tires are NOT for 40 mph. Go with a big fat tire on an MTB.
by dogman dan
Feb 14 2020 9:16am
Forum: E-Bike General Discussion
Topic: Small hub motor
Replies: 21
Views: 1785

Re: Small hub motor

FWIW, I was an off and on rider too for years. A few weeks after I got an e bike, I was riding with power 99% of the time, and commuting 15 miles one way to work. a year of that, and I was riding pretty long distances on mountain bikes, on very tough trails. Start small very good. Keep it cheap. But...
by dogman dan
Feb 14 2020 9:05am
Forum: E-Bike General Discussion
Topic: The joy of causing despair and confusion
Replies: 15
Views: 558

Re: The joy of causing despair and confusion

Love it. Looks like my old death race vid, except you don't just kill em on the start, but in the straight as well. You can see the guy looking at your shit, going wtf? Then, see ya. Re stealth, my cruiser is very much not obviously an e bike. But as faster guys training for a race pass me, they cle...
by dogman dan
Feb 14 2020 8:59am
Forum: General Discussion
Topic: Lipo vs Lion
Replies: 100
Views: 1666

Re: Lipo vs Lion

For sure, a much smaller, higher c rate, lipo pack can provide 3000w of power. Though the cells in other packs have improved, you still don't go pulling really high amps from a 10 ah size pack. In general, if you want light weight, to keep the handling of a bike good off road, you need the higher c ...
by dogman dan
Feb 14 2020 8:51am
Forum: Battery Technology
Topic: Re-purposing some laptop cells for ebike pack
Replies: 4
Views: 178

Re: Re-purposing some laptop cells for ebike pack

Disassemble without removing the strip attached to the tabs. So you still have a strip you can solder to.

Charge em, test em. Then make parallel sections that are big enough to discharge without huge voltage sag under load.
by dogman dan
Feb 12 2020 9:42am
Forum: E-Bike Technical
Topic: Problem with phasewire heat shrink :(
Replies: 8
Views: 272

Re: Problem with phasewire heat shrink :(

Oh,, I thought the wire should look brighter. In the picture it looks dull to me, which I have seen on roasted wires.
by dogman dan
Feb 12 2020 9:33am
Forum: E-Bike General Discussion
Topic: Heinzmann 36v 750w controller & battery
Replies: 2
Views: 128

Re: Heinzmann 36v 750w controller & battery

Same answer, except it could be from ebay instead of amazon.. Right now though, I would look for a controller already in the usa, vs shipped from china. Partly the virus, but also its Chinese new year over there. Those motors melt easy when overloaded, so I would limit to 20 amps, so you will get a ...
by dogman dan
Feb 12 2020 9:28am
Forum: Battery Technology
Topic: 7s15p or 3*7s5p to quickly charge?
Replies: 22
Views: 411

Re: 7s15p or 3*7s5p to quickly charge?

15p,, one good charger,, one bms able to handle the big chargers output. That's ideal. What I mean is,,, changing the p number does not change the individual cells recommended max charge rate. So 3p x max rate of each cell is not going to increase the cells max rate. But depending on which bms you u...
by dogman dan
Feb 11 2020 7:55am
Forum: E-Bike Technical
Topic: Problem with phasewire heat shrink :(
Replies: 8
Views: 272

Re: Problem with phasewire heat shrink :(

Wire looks cooked off to me, will resist a lot, and cook off again. Replace that wire. But if that wire cooked off that hot,, what did it do to the windings?

That motor is done carrying much wattage IMO. It got overloaded?
by dogman dan
Feb 11 2020 7:05am
Forum: General Discussion
Topic: What powerful rear geared hub motor?
Replies: 10
Views: 1177

Re: What powerful rear geared hub motor?

Again, nothing will do everything. But your commute needs are very modest. That opens up some possibilities. Maybe one bike, but two battery setups? You can still ride dirt with a lot of powerful battery, but run your very short commute on less power, meaning a nice small battery can get you there a...
by dogman dan
Feb 10 2020 7:18am
Forum: E-Bike General Discussion
Topic: Fat Bike vs (Hardtail)-MTB
Replies: 7
Views: 408

Re: Fat Bike vs (Hardtail)-MTB

Yeah,,,, you want it. And it does exist. In a gas motorcycle. I mean fast on road, pretty nimble suspension for off road. Perfect, except in many places riding that motorcycle on a bike trail is very illegal. The only real solution is to throw money at the problem, which is a real problem when there...
by dogman dan
Feb 10 2020 6:59am
Forum: General Discussion
Topic: What powerful rear geared hub motor?
Replies: 10
Views: 1177

Re: What powerful rear geared hub motor?

That should work, particularly since in a 12t winding, the motor will reach middle rpm where the motor stops running so inefficient a few seconds sooner than a fast winding would have. As the motor winds up to speed, it will stop trying to pull the full amps, effectively limiting excess motor heatin...
by dogman dan
Feb 10 2020 6:46am
Forum: General Discussion
Topic: China (virus): no problem with air shipments? i'd like to buy.........
Replies: 46
Views: 1520

Re: China (virus): no problem with air shipments? i'd like to buy.........

Just ordered a new pair of eyeglasses. Turns out I can't opt for a quicker shipping at this time, up to 30 days to arrive at my house. Assuming somebody shows up to ship em. Guess I should have known the lenses came straight from china. The box is mailed from a US address, but the actual item of cou...