Search found 263 matches

by Eastwood
Jul 24 2021 4:23pm
Forum: EBike General Discussion
Topic: Does anyone make "small" 52v batteries?
Replies: 20
Views: 353

Re: Does anyone make "small" 52v batteries?

Gotta love all the disclaimers like: ONLY CHARGE THIS BATTERY IN A PLACE WHERE YOU WOULDN’T MIND STARTING A FIRE. I know, good practice, but it sounds like something lost in translation here. 40T :D https://www.ebay.com/itm/233342560598 Those are cool little batteries! Small and idea for keeping th...
by Eastwood
Jul 24 2021 3:53pm
Forum: EBike General Discussion
Topic: Does anyone make "small" 52v batteries?
Replies: 20
Views: 353

Re: Does anyone make "small" 52v batteries?

https://bicyclemotorworks.com/product/ebike-battery-pocket-rocket-ii-52v-8ah/ for the price I'd buy one of his bigger batteries that fit like 12 ah BBSHD uses 30 amps or more of current. 40T :D https://www.ebay.com/itm/233342560598 Those are cool little batteries! Small and idea for keeping the wei...
by Eastwood
Jul 24 2021 3:32pm
Forum: EBike General Discussion
Topic: how fast does 1600 watts get you on a mountainbike?
Replies: 13
Views: 287

Re: how fast does 1600 watts get you on a mountainbike?

MadRhino wrote:
Jul 24 2021 9:03am
The simple answer is: watts don’t make any speed, they only can help fighting the resistances. Watt is a unit of power.

You can build a bike that will do 5 mph no matter how high the amount of watts that you feed it.
Yes exactly this.
by Eastwood
Jul 23 2021 5:24pm
Forum: EBike General Discussion
Topic: how fast does 1600 watts get you on a mountainbike?
Replies: 13
Views: 287

Re: how fast does 1600 watts get you on a mountainbike?

It’s almost like asking how fast can a car with 4 Wheels Drive Lol :lol:

Voltage, mid drive, hub motor??
by Eastwood
Jul 22 2021 2:48pm
Forum: EBike General Discussion
Topic: Specialized Stumpjumper conversion recommendations
Replies: 49
Views: 613

Re: Specialized Stumpjumper conversion recommendations

Good discussion here on battery size for mt biking...https://endless-sphere.com/forums/viewtopic.php?f=28&t=111282 The consensus is that a ~8ah battery is sufficient for most riders and most rides. Going with a big (15ah+) battery adds considerable weight and cost. Not sure how much time/effort...
by Eastwood
Jul 22 2021 2:45pm
Forum: EBike General Discussion
Topic: Specialized Stumpjumper conversion recommendations
Replies: 49
Views: 613

Re: Specialized Stumpjumper conversion recommendations

LOL... yes! Been there and done that, but not from a fork compression issue. I really need a longer travel bike front and rear. I had this bike around and it was still in good shape so I converted it. But to really explore the motor's potential in the rough it'd be nice to have at least a 150mm bik...
by Eastwood
Jul 22 2021 9:47am
Forum: EBike General Discussion
Topic: Specialized Stumpjumper conversion recommendations
Replies: 49
Views: 613

Re: Specialized Stumpjumper conversion recommendations

Also note, don’t use a seat stem mount for your battery especially with off-road use.
by Eastwood
Jul 22 2021 9:45am
Forum: EBike General Discussion
Topic: Specialized Stumpjumper conversion recommendations
Replies: 49
Views: 613

Re: Specialized Stumpjumper conversion recommendations

Howdy. I have the same bike as in this video and would like to do a conversion: https://www.youtube.com/watch?v=7qO1Yuj3sH4 However, there are few issues with this frame. One is that due to the frame shape a mid drive motor will need to hang down causing loss of ground clearance. Also I'm not sure ...
by Eastwood
Jul 22 2021 9:41am
Forum: EBike General Discussion
Topic: Specialized Stumpjumper conversion recommendations
Replies: 49
Views: 613

Re: Specialized Stumpjumper conversion recommendations

CYC_Installed.jpg Well you have a decent fork on there but you need a longer travel fork. I just fixed the same situation on my bike by installing a downhill fork. It can be quite dangerous if you compress the front fork all the way and it bites down on the tire as you will go over the handlebars. ...
by Eastwood
Jul 21 2021 2:55pm
Forum: EBike General Discussion
Topic: Strategies to increase range while on road (you can't use a gas station)
Replies: 23
Views: 562

Re: Strategies to increase range while on road (you can't use a gas station)

ZeroEm wrote:
Jul 20 2021 6:54pm
I can only ride for 4 hrs then my body needs a break
Yeah same here, I’m good for about 3 to 4 hours then my neck muscles starts tightening up. Probably from holding the thumb throttle so much lol
by Eastwood
Jul 21 2021 2:53pm
Forum: EBike General Discussion
Topic: Waterproofing exposed switches?
Replies: 9
Views: 229

Re: Waterproofing exposed switches?

connections with Vaseline though Nice tip! I’ve used silicone in the past to seal up connections. Vaseline trick is a great idea. Squirt them with WD-40 once in a while. WD stands for Water Displacement. :thumb: Nice, I wonder if silicone spray would work the same since it doesn’t stink as bad lol
by Eastwood
Jul 19 2021 9:14pm
Forum: EBike General Discussion
Topic: Does this look safe?
Replies: 24
Views: 419

Re: Does this look safe?

ZeroEm wrote:
Jul 19 2021 7:06pm
My led lights only pull a few watts. Unless you are running other types of lights it should not get hot.
Right, same here this one pulls around 25watts.

Since these DC to DC step downs or so cheaply made, I was suggesting since it’s not heating up it’s a good sign it might last.
by Eastwood
Jul 19 2021 6:08pm
Forum: EBike General Discussion
Topic: Does this look safe?
Replies: 24
Views: 419

Re: Does this look safe?

If SAFE means it won’t set fire to your bike, this is about where you plan to place it. It can be installed perfectly safe. If SAFE means reliable, forget that kind. You need to put more money for a good, reliable DC/DC converter. The only other step downs I could find were way too big. I’m hoping ...
by Eastwood
Jul 17 2021 7:21pm
Forum: EBike General Discussion
Topic: Does this look safe?
Replies: 24
Views: 419

Re: Does this look safe?

Well I just tested the step down and it works great. The output voltage is 11.7, perfect!
I will go for a night ride and test it out to make sure it doesn’t get too hot, the step down.

Thanks for the input guys! :D
by Eastwood
Jul 17 2021 12:18pm
Forum: EBike General Discussion
Topic: Does this look safe?
Replies: 24
Views: 419

Re: Does this look safe?

Here’s a picture of the light installed on the bike. Not bad for under 30 bucks
I made aluminum bracket that screws into the bottom of the steer tube. I put a star nut in the bottom side of the steer tube for an anchor.
by Eastwood
Jul 17 2021 11:55am
Forum: EBike General Discussion
Topic: Does this look safe?
Replies: 24
Views: 419

Re: Does this look safe?

Currently stepping down 72v to 12v for lights with this. 41sHdfFNHcL._AA200.jpg Automotive grade, water restraint and potted. Would still point the wires down. Had a different type, the vibration took it out not water. https://www.amazon.com/Converter-Voltage-Reducer-Regulator-Vehicle/dp/B08HRJFR8V...
by Eastwood
Jul 17 2021 11:53am
Forum: EBike General Discussion
Topic: Does this look safe?
Replies: 24
Views: 419

Re: Does this look safe?

dogman dan wrote:
Jul 17 2021 5:49am
Just mount it so it stays dry, but in a little box so the heat sink can breathe. Or maybe just tuck it under the seat.
I should be able to find a place for it in my battery cover. Well it’s an ABS plastic case I made but it has a little bit of room for storage.
by Eastwood
Jul 17 2021 11:49am
Forum: EBike General Discussion
Topic: Does this look safe?
Replies: 24
Views: 419

Re: Does this look safe?

TDB wrote:
Jul 16 2021 11:36pm
Which light?
Motorcycle LED Dirt Bike headlamp
https://www.amazon.com/dp/B07S512DKW/re ... UTF8&psc=1

That’s the Cree chip 👇
https://cree-led.com/media/documents/ds-XHP702.pdf
by Eastwood
Jul 17 2021 11:34am
Forum: EBike General Discussion
Topic: Does this look safe?
Replies: 24
Views: 419

Re: Does this look safe?

E-HP wrote:
Jul 16 2021 8:08pm
Eastwood wrote:
Jul 16 2021 5:34pm
Do you think it’s unsafe in general or?
I have a couple of those for lights. They work fine. Didn't bother to fuse them or anything.
Good to know.
by Eastwood
Jul 16 2021 8:07pm
Forum: EBike General Discussion
Topic: Does this look safe?
Replies: 24
Views: 419

Re: Does this look safe?

LewTwo wrote:
Jul 16 2021 7:49pm
I think that I might add an inline fuse
Yeah I was thinking the same
by Eastwood
Jul 16 2021 6:34pm
Forum: EBike General Discussion
Topic: Are fans needed to cool down battery packs?
Replies: 9
Views: 251

Re: Are fans needed to cool down battery packs?

What type of battery do you have hard case or soft pack? How much current are you pulling?
Normally the wind is enough to cool battery packs off if they’re not being pushed too hard.
by Eastwood
Jul 16 2021 6:29pm
Forum: EBike General Discussion
Topic: Waterproofing exposed switches?
Replies: 9
Views: 229

Re: Waterproofing exposed switches?

Well they’re nice looking switches! 😅
I think it comes down if you ever ride in the rain or not or if this is a commuter. I have non-waterproof switches on my bike but I never ride if it’s called for rain. Can always carry some gorilla tape and if it ever starts raining just cover the switch up lol
by Eastwood
Jul 16 2021 6:19pm
Forum: EBike General Discussion
Topic: Does this look safe?
Replies: 24
Views: 419

Re: Does this look safe?

I wouldn't. Plenty of LED ebike headlights out there that will run on 60V or more. Also this is a Cree LED headlamp. The paperwork shows 10-80volts But the first one I connected straight to the battery and I believe it fried the diode or something. I didn’t smell anything but the light won’t turn o...
by Eastwood
Jul 16 2021 5:34pm
Forum: EBike General Discussion
Topic: Does this look safe?
Replies: 24
Views: 419

Re: Does this look safe?

I wouldn't. Plenty of LED ebike headlights out there that will run on 60V or more. Do you think it’s unsafe in general or? I’ve already installed this headlight and made nice mount for it and have been running it with some 18650 cells. works great but would like to connect it to my battery pack so ...
by Eastwood
Jul 16 2021 4:40pm
Forum: EBike General Discussion
Topic: What controller for more amps?
Replies: 10
Views: 263

Re: What controller for more amps?

Can anyone tell me how many amps I'm probably sending to the motor? I'm assuming 20? I've read these hubs can take quite a bit of power. Can someone give me a suggestion of what specific controller would be a nice upgrade? I was thinking of 35 or 40amps would really wake this bike up, giving more t...