Search found 321 matches

by davec
Jun 09 2019 5:58pm
Forum: Items for Sale - Used
Topic: SOLD
Replies: 1
Views: 249

SOLD

controller is not working - selling AS-IS
programmable
has 3077 fet's

I opened it today
Controller has a blown mosfet and a bad resistor - unfortunately i don't have time to fix it

make an offer- just looking to cover shipping costs
maybe this can be of use to someone who has time to repair it
by davec
Sep 29 2016 12:55pm
Forum: Battery Technology
Topic: Biggest Battery Fail Ever - A123 AMP20
Replies: 15
Views: 1602

Re: Biggest Battery Fail Ever - A123 AMP20

personally i don't think AMP20 was meant for the hobby market i like the format easier than paralleling tons of tiny cells and is more space efficient but engineering a proper case for it , is tricky.. i think the proper way to go is to try to source the gear from a123 / platters /compression bands ...
by davec
Aug 01 2016 7:18pm
Forum: Battery Technology
Topic: Hyperion EOS 0840i
Replies: 0
Views: 359

Hyperion EOS 0840i

looks like Hyperion came out with a new product haven't seen anything from them in a while - i'm still running my 1420's without any issues but looks like it has been discontinued and there hasn't been a lot of new products from them Hyperion EOS 0840i 8S DC Charger (1000W Output) http://media.hyper...
by davec
Jul 06 2016 10:56am
Forum: E-Bike General Discussion
Topic: Opinions on front wheel hub systems
Replies: 36
Views: 3178

Re: Opinions on front wheel hub systems

i've been riding fw hub for years thousands of miles- trick as discussed many times on here - is steel fork, and 2 torq arms also i keep the motor at 1kw and it's fine... i would probably not push it passed that i dont think i'd ever change my setup - the handing is good- and i dont have to worry ab...
by davec
May 20 2016 7:34am
Forum: E-Bike General Discussion
Topic: Where I get most of my ebike parts
Replies: 15
Views: 1817

Re: Where I get most of my ebike parts

thanks for posting this- very useful i can still remember how my 1st ebike was a headache built out of low quality chinese parts but after doing research and switching to better vendors/parts the problem went away i've used many of the vendors noted in the article and their products have not let me ...
by davec
Apr 10 2016 7:30pm
Forum: E-Bike Technical
Topic: weatherproof ebike
Replies: 6
Views: 1626

Re: weatherproof ebike

..Gee, thanks for telling me it can't happen. Next time I get caught in a tropical downpour in Matzalan Mexico and the streets turn into rivers I'll know I'm just hallucinating haha really- that is something to experience- at least here i've never seen anything like that that is one day to stay hom...
by davec
Apr 10 2016 2:30pm
Forum: E-Bike Technical
Topic: weatherproof ebike
Replies: 6
Views: 1626

Re: weatherproof ebike

i checked it out - looks like they beefed up the controller and wires with rubber seals- not bad but from the pics i cant tell how the hub is water proof "As far as water in the hub, I really only worry if the water is so high it reaches the axle." that's a different animal altogether - the goal is ...
by davec
Apr 10 2016 9:10am
Forum: E-Bike Technical
Topic: weatherproof ebike
Replies: 6
Views: 1626

Re: weatherproof ebike

inexpensive ways to keep wires dry e-cord-cover.jpg http://www.littlegreenhouse.com/accessory/electrical.shtml http://www.downwindmarine.com/Hubbell-Weatherproof-Seal-Tite-Covers-50A-p-91001950.html stuffing the connector end points from controller/battery into the closure provides a cheap solution ...
by davec
Apr 10 2016 8:53am
Forum: E-Bike Technical
Topic: weatherproof ebike
Replies: 6
Views: 1626

weatherproof ebike

i have been brainstorming about building a new ebike for riding in the rain i know this topic has been discussed before however i figured i'd share my solution this issue has been discussed https://endless-sphere.com/forums/viewtopic.php?f=30&t=34135 https://www.youtube.com/watch?v=gwlbAJLzI_w in sh...
by davec
Feb 10 2016 11:27am
Forum: General Discussion
Topic: Are Electric Cars Really Green?
Replies: 91
Views: 8186

Re: Are Electric Cars Really Green?

hey scotty i see this argument brought up many times and every time i totally disagree.....production ,sure, that's a one time where the environment takes a hit but after it's rolling the thing pays for itself and this dosn't even address all the maintenance and oil/toxic chemicals you need to const...
by davec
Dec 22 2015 8:31pm
Forum: EV Business World
Topic: Thorium
Replies: 21
Views: 5539

Re: Thorium Reactor - Best Energy Solution

not a fan of nuclear
there are certainly better ways than thorium
http://www.theguardian.com/environment/ ... ar-uranium
by davec
Oct 17 2015 8:14pm
Forum: E-Bike General Discussion
Topic: cool solution for riding in rain
Replies: 1
Views: 511

cool solution for riding in rain

I normally always check the weather network, and if there's any chance of rain i do not ride
but with fenders this just might be the solution,

anyone try one of these?
roofbi.jpg
roofbi.jpg (35.14 KiB) Viewed 511 times
by davec
Oct 16 2015 9:01pm
Forum: E-Bike General Discussion
Topic: ahh camper bike
Replies: 22
Views: 3259

ahh camper bike

this is the life- perfect for a cross country trip. park anywhere and take naps when you get tired or take a break if it starts raining
now how much extra wh/ per miles you need to carry this drag is another matter
camper2.jpg
camper2.jpg (93.95 KiB) Viewed 3113 times
by davec
Aug 01 2015 9:17am
Forum: E-Bike General Discussion
Topic: Cyclist vs motorist
Replies: 21
Views: 2396

Re: Cyclist vs motorist

oh my where im from we have a 1 meter rule, vehicle must keep 1m when passing or you dont pass at all (300$ fine if you do) that 1meter is very relative, some vehicles keep it, others don't and many especially in redneck pickup trucks think the whole road belongs to them, you always seem to get an a...
by davec
Jul 21 2015 9:44pm
Forum: E-Bike General Discussion
Topic: E Bike tires
Replies: 37
Views: 6227

Re: E Bike tires

i run marathons and they work well i have thousands of miles chalo is right though Mr Tuffys do cause flats. i experienced this. i added the liners for extra insurance, since the hub motors are heavy , i ride fast, and riding a cargo rig i simply cannot break down , it has to be bullet proof... the ...
by davec
Jul 11 2015 8:02pm
Forum: Battery Technology
Topic: Home Depot Tool Battery Packs
Replies: 15
Views: 2072

Re: Home Depot Tool Battery Packs

good find but a bit pricey for mediocre performance cells
might be good for a starter who does not need a lot of power or deal with shipping lithium from foreign sources
by davec
Jul 04 2015 5:59pm
Forum: E-Bike Technical
Topic: CA-DP CA-DPS differences
Replies: 9
Views: 1532

Re: CA-DP CA-DPS differences

Hi How do you set the pole count I have a DPS but can't use the Speedo off wheel due to reverse forksDHM Cheers Kiwi as i`m not sure which version of the CA you have(myself i have v2.0 and it works great) - let me give you a good reference http://www.ebikes.ca/learn/documents.html -> Installation G...
by davec
Jul 04 2015 3:31pm
Forum: E-Bike General Discussion
Topic: 28 miles, did it.
Replies: 3
Views: 404

Re: 28 miles, did it.

congrats on your achievement to me 44(22 to work, and 22 back) miles a day is the norm....my record was 80miles in 1 day, but that was a camping trip i have been car free ever since..and funny thing is my commute is an hour and with a car(with all the traffic) it would be the same... but the first r...
by davec
Jun 25 2015 9:36pm
Forum: E-Bike Technical
Topic: Marathon Plus Tour, not so flat less...
Replies: 31
Views: 4422

Re: Marathon Plus Tour, not so flat less...

In the 3000 miles, have you seen any evidence that anything has made its way through the tire, to the tire liner? nope...the tires are solid. i inspected my tire and there was nothing. no hole, no thorn, puncture.. nothing... ill take a pic when i get a chance...the area of rupture on the inner tube...
by davec
Jun 25 2015 6:48pm
Forum: E-Bike Technical
Topic: Marathon Plus Tour, not so flat less...
Replies: 31
Views: 4422

Re: Marathon Plus Tour, not so flat less...

had my first flat today... after 3000 miles .... not the marathons fault... turns out there was some rubbing between the mr tuffy and the inner tube... this happened near the valve where the ends of the tire liner crossed.it tore tiny hole into my inner tube a bit, but the tire liner was so stuck to...
by davec
Jun 22 2015 7:35am
Forum: E-Bike General Discussion
Topic: 11 miles to work,what to expect out of 48v 1000w 15ah
Replies: 23
Views: 2293

Re: 11 miles to work,what to expect out of 48v 1000w 15ah

your lucky to have an all flat terrain- i can;t comment on that battery or what AH it is capable of however basic calculation shows that this battery is plenty to get you there and back - there are many variable wind/outdoor temp/ speed etc.. so it's always good to have more than you need i would re...
by davec
Jun 15 2015 8:22am
Forum: E-Bike Technical
Topic: Marathon Plus Tour, not so flat less...
Replies: 31
Views: 4422

Re: Marathon Plus Tour, not so flat less...

strange indeed. knock on wood thousands of miles here on my marathon and no flat
i do use a mr tuffy tire liner inside- i only ride pavement though - but sometimes there are sharp objects left on the road... still no problems
by davec
Jun 14 2015 6:21pm
Forum: Motor Technology
Topic: 9c rust restoration
Replies: 1
Views: 423

9c rust restoration

I recently acquired a 9continent 2806 - the motor was used in a humid climate so naturally there was a bit of rust inside. I am sure this has been covered by others on here but i figured i`d share my method- the rust was light so it wasn`t a major concern my method involved getting a 1liter bottle o...
by davec
Jun 10 2015 8:25am
Forum: E-Bike Technical
Topic: I've got a 9C motor open for repair, what else?
Replies: 21
Views: 1553

Re: I've got a 9C motor open for repair, what else?

few things: 1 change the bearings with quality bearings - skf/fag etc.... 2 if you live in a wet climate- spray the magnet/metal parts with rust proof coating 3 the 15awg wire should be totally fine in short length- you could put a higher awg wire in- but really if you're not hot rodding - leave it ...
by davec
Apr 04 2015 9:27am
Forum: Battery Technology
Topic: I've built an Arduino battery cycle tester!
Replies: 27
Views: 4569

Re: Help me design a battery cycle tester!

yeah i sent jonescg a pm- there are many ways to approach this task. I've done this type of work in the past while i was testing batteries - i used the light bulb discharger than switched to big resistors for discharging- but my methods were never automated as i was not doing repeated testing. i am ...