Search found 287 matches

by Hwy89
Dec 10, 2017 10:24 pm
Forum: Battery Technology
Topic: Using a MPPT solar charge controller as a bulk charger
Replies: 16
Views: 233

Re: Using a MPPT solar charge controller as a bulk charger

I use the MPT-7210A with a 120 Watt 24 Volt peak (18 Volt MPP) panel to charge my 14S 18650 e-bike battery at 57.5 volts. I see output from the MPPT in the 95 Watt range in full high sun normally though it does hit 106 Watts at time. The MPT-7210A is a boost converter and can supply up to 60 Volts....
by Hwy89
Dec 06, 2017 5:48 pm
Forum: General Discussion
Topic: Boost 110v AC to 120v AC or slightly more
Replies: 12
Views: 124

Re: Boost 110v AC to 120v AC or slightly more

Google variac variable transformer for a safe simple out of the box solution
by Hwy89
Dec 06, 2017 4:53 pm
Forum: E-Bike General Discussion
Topic: Electric handbike
Replies: 11
Views: 191

Re: Electric handbike

If he isn't tackling big hills I think the Q100h would be a good choice. Get the sine wave controller to go with it and you will be amazed at how smooth and quiet it is. Contact BMSB about compatibility and specify that you want throttle control. Their shipping is sky high so think about what spares...
by Hwy89
Dec 06, 2017 11:46 am
Forum: Battery Technology
Topic: Using a MPPT solar charge controller as a bulk charger
Replies: 16
Views: 233

Re: Using a MPPT solar charge controller as a bulk charger

I've been a full time RVer for about 3 years now. I carry a 180 watt panel, 27V open circuit through a simple non mppt controller always feeding my house battery bank. I use an RC balance charger occasionally but mostly bulk charge with a Meanwell plugged into an inverter. Not the most efficient way...
by Hwy89
Nov 30, 2017 1:32 pm
Forum: E-Bike Technical
Topic: Dumbish Question
Replies: 3
Views: 171

Re: Dumbish Question

Looks like an Atoma motor from a Wilderness Energy kit. Direct drive sensorless motor intended for 36v but will handle much more.
by Hwy89
Nov 26, 2017 11:06 am
Forum: General Discussion
Topic: controller wiring
Replies: 5
Views: 114

Re: controller wiring

In many cases it is a single red wire (possibly the wire with no terminal in your photo) that can be connected to battery positive through a switch that will turn the controller on.
by Hwy89
Nov 22, 2017 10:14 am
Forum: E-Bike Technical
Topic: DC to DC step down and on and off switch
Replies: 4
Views: 211

Re: DC to DC step down and on and off switch

I would put the switch on the pos lead from the battery. Just in case there is a parasitic load from the converter.
by Hwy89
Nov 14, 2017 1:11 am
Forum: E-Bike General Discussion
Topic: Source for Q128 motors
Replies: 7
Views: 320

Re: Source for Q128 motors

I looked at the Aikema web site and couldn't determine which motor was which. There also, doesn't seem to be any ordering or price information. I may try communicating with them to see if they sell directly. I tried to talk BMSbattery into using a slower, cheaper shipping method but they only use DH...
by Hwy89
Nov 14, 2017 12:51 am
Forum: Large EV General Discussion
Topic: Anybody ever added battery capacity to Nissan Leaf?
Replies: 2
Views: 179

Re: Anybody ever added battery capacity to Nissan Leaf?

I was looking for more of a DIY solution. There are several youtube videos where people have added 18650 packs that were not too successful and didn't follow up with newer videos explaining how the problems were solved.
I was hoping an ES member had done an upgrade.
by Hwy89
Nov 12, 2017 3:11 am
Forum: E-Bike General Discussion
Topic: Source for Q128 motors
Replies: 7
Views: 320

Source for Q128 motors

Is there another source for Q 128 motors other than BMS battery? I just put a Q128h on my bike with the s12 sine wave controller and I love it. It is smooth, dead silent and gets me up hills with no strain. I bought it from BMS Battery.com with no glitches and very quick delivery but the shipping co...
by Hwy89
Nov 12, 2017 2:47 am
Forum: Large EV General Discussion
Topic: Anybody ever added battery capacity to Nissan Leaf?
Replies: 2
Views: 179

Anybody ever added battery capacity to Nissan Leaf?

The older leafs are getting pretty cheap and I'm considering buying one. Has anyone here added some battery capacity to their Leaf for the occasional longer trip. I'm a battery builder with a couple hundred Tesla 18650 cells that need to be put to use somewhere. The older leafs look like a good proj...
by Hwy89
Nov 12, 2017 2:20 am
Forum: E-Bike General Discussion
Topic: Cheapest e-components for 55mph?
Replies: 104
Views: 2298

Re: Cheapest e-components for 55mph?

Get a motorcycle. Get licensed. Get insured. Real ebikers don't need your type ruining their sport. I enjoy going under 20 MPH and being able to go anywhere a bicycle can go. Your type will eventually ruin it for everyone else.
by Hwy89
Nov 12, 2017 1:53 am
Forum: Large EV General Discussion
Topic: Azure Dynamics Transport Connect - I have one
Replies: 15
Views: 743

Re: Azure Dynamics Transport Connect - I have one

I was a stock holder of Azure Dynamics when they went under. Lost a lot of money. Always wanted an electric transit connect. Feel like I paid for one but never got it. Good luck, hope you figure out how to get it running.
by Hwy89
Oct 25, 2017 2:37 pm
Forum: Alternative Energy
Topic: Using an old car alternator to generate electricity...
Replies: 26
Views: 586

Re: Using an old car alternator to generate electricity...

I hooked up one of my DIY PMA alternators to a Schwinn stationary exercise bike and mounted a 12 V portable TV in front. You will be amazed at how much work it is to pedal enough power for even a small TV. Sold that contraption in a garage sale right away.
by Hwy89
Oct 24, 2017 1:29 pm
Forum: Alternative Energy
Topic: Using an old car alternator to generate electricity...
Replies: 26
Views: 586

Re: Using an old car alternator to generate electricity...

Fun to play around with. What do you plan to use to spin the alternator? As is, it will probably need to spin around 1000 RPM to produce a useable amount of power. If you strip the wire off the stator and re-wind it with 20 or 22 gauge magnet wire you can start producing at much lower rpm. A few yea...
by Hwy89
Oct 21, 2017 9:49 am
Forum: General Discussion
Topic: Dogman Dans E bike burns his house.
Replies: 161
Views: 9818

Re: Dogman Dans E bike burns his house.

So glad to hear that this ordeal is finally almost over for you. May you have many years of enjoyment in your "new" place. I resolve to quit complaining about how much I spend on home insurance.
by Hwy89
Oct 21, 2017 8:56 am
Forum: Battery Technology
Topic: Free dead tesla cells
Replies: 1
Views: 291

Re: Free dead tesla cells

I took the cells to Home Depot for recycling. They only had a small cardboard display to deposit rechargable batteries so I found an employee who willingly took my shopping cart full.
by Hwy89
Oct 19, 2017 9:42 pm
Forum: Battery Technology
Topic: How can I isolate this cell?
Replies: 9
Views: 246

Re: How can I isolate this cell?

Find a single cell charger or a phone charger with a 4.2 V output at 1 amp or less and connect it to the JST connector pins corresponding to the low cell. Check and double check the polarity before hooking it up. It may take a while but it will bring the low group up. When it reaches the level of th...
by Hwy89
Oct 13, 2017 4:39 pm
Forum: Battery Technology
Topic: Free dead tesla cells
Replies: 1
Views: 291

Free dead tesla cells

Trying to figure out where to recycle these and it occurred to me that someone out there might want them to experiment with. I have pulled all of the good cells so what you see here is junk. I did try to revive a couple of the dead cells but no luck. Use them for a classroom demonstration or practic...
by Hwy89
Oct 03, 2017 9:12 am
Forum: E-Bike Technical
Topic: Unique brushless hub motor issue.
Replies: 8
Views: 260

Re: Unique brushless hub motor issue.

I assumed that the motor wires were unplugged from the controller when you disassembled it.
by Hwy89
Oct 02, 2017 5:47 pm
Forum: E-Bike Technical
Topic: Unique brushless hub motor issue.
Replies: 8
Views: 260

Re: Unique brushless hub motor issue.

My thought is that one or more of the magnets have come unglued. When you pulled the stator out they pulled back into their slots. If you take the motor apart again try using a narrow flat steel bar against each magnet and see if any of them can be lifted out.
by Hwy89
Sep 28, 2017 9:59 am
Forum: E-Bike Technical
Topic: Wilderness Energy Bike Electrified kit stopped working
Replies: 22
Views: 518

Re: Wilderness Energy Bike Electrified kit stopped working

My Wilderness Kits were sensorless. If, as you say, it has 5 smaller wires it is a sensored motor and may not be the original from the kit. The sensorless controller should still make it run but will require a bit of rotation to learn the motor configuration. Try spinning the wheel while applying so...
by Hwy89
Sep 26, 2017 10:41 am
Forum: E-Bike Technical
Topic: Wilderness Energy Bike Electrified kit stopped working
Replies: 22
Views: 518

Re: Wilderness Energy Bike Electrified kit stopped working

Go back to the connector between the throttle cable and the controller. Make sure that none of the pins are pushed back into the housing and that everything is clean and tight. You should be able to probe the back side of the connector with your volt meter. First with battery disconnected and meter ...
by Hwy89
Sep 22, 2017 2:32 pm
Forum: E-Bike General Discussion
Topic: How do you carry groceries on your ebike?
Replies: 52
Views: 2348

Re: How do you carry groceries on your ebike?

Hey motomech, can you post a close up of the hitch and explain how it operates?