EBike Toolbox - Bargains! $

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DrkAngel
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Re: EBike Toolbox - Bargains! $

Post by DrkAngel » Jun 24, 2015 6:59 am

circuit wrote:I would be perfectly ok with a quality corded 12V compressor...
I am reconsidering 12V lighting ... and for many other devices.

Some options for 12V supply
1. A small 3s Lipo or homemade 18650 3s pack.
2. eZip 24V RMB battery pack uses a 3 pin XLR charging port.
Use XLR center pin for 12V. SLR - use center pin as 12V. Li-ion - use center pin for 11.1V (12.6V fully charged.)
3. >>> 12V converters.
36V to 12V 2-3A converters are cheap ~ $2,
Converting to 5V usb power is becoming increasingly advisable!
4. eZip special - convert 2nd RMB pack as Lithium 3s pack for large 12V supply for:
air pump
lighting
power inverter
power tools
Bonus! - rig 12-11.1V) pack with its neg to pos of 1st 24-25.9V pack.
Battery switch position 1 will supply normal 7s 25.9V (normal 20mph - 485w).
Switch position 2 will run batteries in series 10s 37V (TURBO 25mph+ - 695w)
(requires 24-36V capable controller)

Index - not complete ... but good start
Last edited by DrkAngel on Aug 16, 2015 7:50 am, edited 1 time in total.
A little learning is a dangerous thing;
Drink deep, or taste not the Pierian spring:
There, shallow draughts intoxicate the brain,
And drinking largely, sobers us again.

I enjoy enlightening ... and enlivening the spirit of the innovators.

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EBike Toolbox - Bargains! $

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Re: EBike Toolbox - Bargains! $

Post by alsmith » Jun 24, 2015 8:39 am

I've started in a similar direction but I'm tapping ~12V from 4 of the LiFePO4 cells in my battery pack for low load items (alarm).

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Re: EBike Toolbox - Bargains! $

Post by opperpanter » Jun 28, 2015 6:01 am

Anybody seen/used this one? Amp hour / Watt meter with Wireless display.

Image

120V 100A Doesn't show Wh, only Ah. $27.10

http://www.ebay.com/itm/DC-120V-100A-Vo ... 1c520b1615
Last edited by opperpanter on Jul 08, 2015 1:17 pm, edited 1 time in total.

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Re: EBike Toolbox - Bargains! $

Post by kfong » Jun 28, 2015 7:28 am

alsmith wrote:I've started in a similar direction but I'm tapping ~12V from 4 of the LiFePO4 cells in my battery pack for low load items (alarm).

Tapping Into you packs would create an imbalance issue. You are better off getting a DC/DC converter or building a separate pack.

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Re: EBike Toolbox - Bargains! $

Post by alsmith » Jun 30, 2015 11:11 am

It' a very low discharge so I very much doubt there'll be any issues. I do have separate batteries for heavier draw items such as the Cree lights.

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Re: EBike Toolbox - Bargains! $

Post by Htfan » Aug 14, 2015 10:11 am

opperpanter wrote:Anybody seen/used this one? Amp hour / Watt meter with Wireless display.

Image

120V 100A Doesn't show Wh, only Ah. $27.10

http://www.ebay.com/itm/DC-120V-100A-Vo ... 1c520b1615
I was all set to order one and give it a try.... However, I decided to first find and download a manual for it. Glad I did because there is a requirement to also provide power (different voltage) to the display unit in addition to the shunt/circuit board. NOT MENTIONED ANYWHERE in the seller's post.

The display requires a separate 5v to 24v supply. So to use we would have to get a DC - DC step-down converter or a separate and smaller battery from the main ebike battery.

Not something I want to deal with.
"Try not to become a man of success, but rather try to become a man of value."

- Albert Einstein

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Re: EBike Toolbox - Bargains! $

Post by Htfan » Aug 14, 2015 10:25 am

What about this meter?

Image

http://www.ebay.com/itm/151464937998?_t ... EBIDX%3AIT

I'm planning to give this one a try. In the following configuration:

Image

It is self powered (10v to 90v) and can measure anything up to 120v and 200a.
"Try not to become a man of success, but rather try to become a man of value."

- Albert Einstein

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Re: EBike Toolbox - Bargains! $

Post by alsmith » Aug 16, 2015 11:36 pm

I just spotted a meter on Hobbyking, it measures voltage to 60V, 100A, and a few other things [Turnigy 7 in 1 Mega Meter - Battery Checker/Watt Meter/Servo Tester/Optical Tacho/Temp Gauge/Thrust Calc/Battery Internal Resistance Checker]. What caught my eye was the Internal resistance option. under $40 but the full specs would need to be checked to make sure it'll be ok with the extra power of ebike batteries.

Image

And alower priced meter - same V & A under $20

Image

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Re: EBike Toolbox - Bargains! $

Post by Htfan » Aug 30, 2015 9:40 am

Just found this one and it looks interesting!

http://www.ebay.com/itm/251798950564?_t ... MEBIDX%3AI

Image
Last edited by Htfan on Sep 07, 2016 9:18 am, edited 1 time in total.
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Re: EBike Toolbox - Bargains! $

Post by sonnetg » Sep 10, 2015 10:05 pm

Here's a very nice and simple LCD 12V-48V meter. Not a bad deal at all for about 5 quids on eBay :D

http://www.ebay.com/itm/121672359374?_t ... EBIDX%3AIT
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Re: EBike Toolbox - Bargains! $

Post by DrkAngel » Oct 08, 2015 11:46 pm

Found up a nice pair of items.
Together, could make an easy eTrike build.
Ideal item for the Schwinn Meridian Trike.
Apply to non pedal driven rear wheel for assist, better traction and motor supplied deceleration.
9 - 32 gearing provide a stable torquey 10mph.
One for each rear wheel! ... for hills, loads and hefties?

24V 350W Electric Motor W/ Gear 9T Sprocket 24 Volt 350 Watt MY1016Z3
Image - ≥ $53.95 delivered
See ES article for full specs - Mid-drive Compatible gear reduction motors

24V 350W = 20mph max capability
36V 525w < 25mph
Motor drive sprockets: 9, 11, 13, 15
Motor drive freewheels: 12, 13, 14, 15, 16, 18, 20, 22, 24 +?

Spoke Mount Sprocket (Non- Freewheel) (for 36 spoke wheels)
Image - ≥ $15.19

Spoke mount (9 hole) sprockets: 28, 31, 32, 36, 38, 40, 41, 44, 48, 56,
Larger sprockets available if you feel capable of drilling-machining.

Figured up a few possible drive ratios - 26" wheels:

24V Unite gear reduction motors:
At 24V
9T - 28T = 11.2 mph
9T - 40T = 8 mph
9T - 56T = 5.6 mph

At 36V
9T - 28T = 16.8 mph
9T - 40T = 12 mph
9T - 56T = 8.4 mph

At 24V
13T - 28T = 16 mph
13T - 40T = 11.5 mph
13T - 56T = 8 mph

At 36V
13T - 28T = 24 mph
13T - 40T = 17.25 mph
13T - 56T = 12 mph

At 24V
18T - 28T = 22.4 mph
18T - 40T = 16mph
18T - 56T = 11.2 mph

At 36V
18T - 28T = 33.6 mph
18T - 40T = 24 mph
18T - 56T = 16.8 mph

Note - relative speeds do not reflect wind resistance at higher speeds
MB requires 350w to sustain 20mph ... 1000w to sustain 30mph. Upright trike requiring notably more w.
Dual motors @ 36V should be ~30mph capable ... but suicidal on a high trike?

Add #415 chain, thumb throttle and mounting hardware ... might cost ≤ $100! - Batteries not included
A little learning is a dangerous thing;
Drink deep, or taste not the Pierian spring:
There, shallow draughts intoxicate the brain,
And drinking largely, sobers us again.

I enjoy enlightening ... and enlivening the spirit of the innovators.

New & Improved - Acronym Definitions

Index - Homemade Battery Packs - Updated - November 2015

EBike Toolbox - Bargains! $

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Re: EBike Toolbox - Bargains! $

Post by alsmith » Oct 28, 2015 12:08 pm

Interesting hybrid latching relay/switch and rated at 80A at $7
yellow and green wires look like they could be a shunt too!

Image

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Re: EBike Toolbox - Bargains! $

Post by amberwolf » Oct 28, 2015 3:27 pm

Interesting--it looks like that motor can pull the contacts apart as well as push them together, though I dunno if it would have enough force to pull apart welded contacts, with just the plastic pull/push bracket.

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Re: EBike Toolbox - Bargains! $

Post by alsmith » Oct 28, 2015 3:34 pm

At that price I ordered one to play with. aliexpress has them too, if you can wait for their deliveries (although it seems to improved over the last couple of months) and also a different style- 5 for $10. I ordered one from ebay to play with.

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Re: EBike Toolbox - Bargains! $

Post by DrkAngel » Nov 05, 2015 8:02 am

Tire bargains
Great price on reasonable quality Kevlar belted tires - price varies but often with "sale" prices

$13.17 w/free shipping on $35 order (11/04/15)
Great Kevlar belted multi purpose tread - Schwinn (Innova)
Image
A little learning is a dangerous thing;
Drink deep, or taste not the Pierian spring:
There, shallow draughts intoxicate the brain,
And drinking largely, sobers us again.

I enjoy enlightening ... and enlivening the spirit of the innovators.

New & Improved - Acronym Definitions

Index - Homemade Battery Packs - Updated - November 2015

EBike Toolbox - Bargains! $

Endless Sphere Wiki

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Re: EBike Toolbox - Bargains! $

Post by docnjoj » Nov 05, 2015 8:21 am

Just ordered 4 at about $14 per tire. They have 20" ones that I bought.
otherDoc
E-bike stable at our house

Steintrike Mad Max full suspension trike rear Cute 100H going on: Whoops, Cute wheel broke but I fixed it.
Sun USX delta trike EbikeKit small geared front wheel sort of front suspension for wife

Agniusm/A123 AMP 20 36 volts on the Steini has been taken off.
2x16000 Multisport from HK now gone as they died after 2 years
New Luna 10S bottle battery 13.6AH now on mine
Relatively New 10S4Px2 for wife's bike giving 20ah @ 40 volts home made Panasonic from Tumich. BMS's rule.

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Re: EBike Toolbox - Bargains! $

Post by 999zip999 » Nov 05, 2015 2:41 pm

That a boy Doc let us know your thoughts. Pls.

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Re: EBike Toolbox - Bargains! $

Post by alsmith » Dec 02, 2015 7:05 pm

10A 12V PSU on ebay. The £9 price includes UK postage, not sure what it would be for you US guys.
They're $114 at Newark Element 14
I've been looking for a while for a charger for a Turnigy LiPo charger at a sensible price, the HobbyKing 105w 7A Compact Power Supply was favourite but has been out of stock for a long time and the shipping charge makes it 2½ times the price.

They are currently being sold on farnells for about £80 so grab yourself a huge saving. Once they've gone they've gone.

Input Voltage AC Max: 264V
Input Voltage AC Min: 90V
Input Voltage VAC: 90V to 264V
No. of Outputs: 1
Output Current Max: 10A
Output Power Max: 120W
Output Voltage Nom.: 12V
Power Supply Output Type: Adjustable, Fixed
Features:

Convection cooled
3" x 5" Footprint
Active PFC
Overvoltage & overcurrent protection
International safety approval

Image

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Re: EBike Toolbox - Bargains! $

Post by DrkAngel » Dec 02, 2015 10:15 pm

Do an eBay search for a Dell DA-2 power supply.
12V 18A = 216w
Often less than $10 delivered.
Dell DA-2

Does require output end plug mod. OEM is 3 output pairs 3+ 3- plus On\Off enable pins.

Image

Power on is short pin 5 to ground.

I made this adapter cut from 24pin ATX power supply extension adapter. - For LED lighting project
Image

Stripped wire sheathing from another and modded to 3 length outputs:
cut one to 1 foot;
one at oem 6 feet;
spliced one to 11 feet.

i solder and heatshrink all wire connections.
¼" long heatshrink rings at intervals keeps wire pairs nicely organized.

Designed for years of continuous use.
Seems ... reasonably weather resistant
A little learning is a dangerous thing;
Drink deep, or taste not the Pierian spring:
There, shallow draughts intoxicate the brain,
And drinking largely, sobers us again.

I enjoy enlightening ... and enlivening the spirit of the innovators.

New & Improved - Acronym Definitions

Index - Homemade Battery Packs - Updated - November 2015

EBike Toolbox - Bargains! $

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Re: EBike Toolbox - Bargains! $

Post by silence » Dec 18, 2015 12:59 pm

24" 36 hole rims at 2,89€.
In lovely pink, red, brown, green or soft green.
Not much to lose even if they are junk.

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Heat\Cool Thermostat-Control - (12V ≤10A)

Post by DrkAngel » Jan 06, 2016 8:32 am

Heat\Cool Thermostat-Control - (12V ≤10A)
Programmable from -50ºC to +110ºC.


Found up a nice budget thermostat control for heating pad or cooling fan.
I ordered LED and dip switch versions. Will post review after received.

Image - <$3 delivered

the 12V heating pads. - ≥$2.67/pair
A little learning is a dangerous thing;
Drink deep, or taste not the Pierian spring:
There, shallow draughts intoxicate the brain,
And drinking largely, sobers us again.

I enjoy enlightening ... and enlivening the spirit of the innovators.

New & Improved - Acronym Definitions

Index - Homemade Battery Packs - Updated - November 2015

EBike Toolbox - Bargains! $

Endless Sphere Wiki

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Re: EBike Toolbox - Bargains! $

Post by TheBeastie » Jan 17, 2016 8:30 am

TheBeastie wrote:Got one of these for my ebike to step down from my mains battery pack output to my 5v led front light. $10 USD
http://www.ebay.com/itm/131411613239?_t ... EBIDX%3AIT
Its all presealed, claims to be Dust-proof/ Waterproof and appears so and its pretty small, (photo is pretty close up) and it has managed to handle my battery packs of 36v and 44v, I have manged to bbq cheaper step down DC converters that claimed to handle these voltages but didn't. If you think you need one of these I demand you buy one and enjoy it (but I have absolutely no gain from you getting one)
Just an update on this device, I decided to solder one some wires onto my back LED light and feed it into the DC-DC 5volt stepdown module as using batteries was getting unreliable on it.
While testing I decided to test the milliamps draw of this device while plugged into my v48 battery pack, the microamps DVM is connected directly to the battery pack then fed into the DC-DC stepdown module.
With the back LED off the whole thing including the dc-dc stepdown module draws about 0.38ma or 378microamps (μA) according to the meter.
With the back light LED switched on the whole thing was drawing about 1.5ma or 1500 micro-amps according to the meter.
Click on the sides of the google photos to see various outputs the meter shows when the bike light is on or off (also note that I flick between uA and mA modes on the meter)
Also note that I placed an extra led on the bike light battery connectors input to drop voltage input and cause it to draw less power while in operation.
https://photos.google.com/share/AF1QipM ... RQZDFVNzJR
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Speed Kills Range, 10mph = 46 miles range, 20mph = 20 miles, 30mph = 8 miles range http://goo.gl/1JNL53
Over Charging Kills ur battery bit.ly/1hzWKl4
Beware of dodgy 18650 cells! youtu.be/eOshOXcSkDA
Consider PAS as your only throttle http://goo.gl/m17J9j
CO2 is core to Photosynthesis https://youtu.be/t5mvDONB6FI
Check out the Bill Gates nuclear reactor https://goo.gl/Rtky9q
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DC Fuses

Post by DrkAngel » Feb 11, 2016 6:40 am

58V DC fuses 15A - 150A 58V Female Cartridge Fuse Holder Source???
  • 250VAC Fuses 80-125V? DC Equivalent
  • 30A Slow Blow
  • 40A
  • 50A
  • 60A
  • 70A
  • 75A
  • 80A
  • 100A
  • 125A
  • 150A
    Note:
    250VAC = 80-125V? DC compatibility based on various claims and the ratings of multiple manufacturers with multi AC-DC compatible fuses
    Please test and confirm in safe environment before placing in service
Slow Blow fuses usually recommended for eBikes etc.
Check descriptions for:
Slow
Delay
Slo
Lag
Last edited by DrkAngel on Feb 18, 2016 2:26 pm, edited 3 times in total.
A little learning is a dangerous thing;
Drink deep, or taste not the Pierian spring:
There, shallow draughts intoxicate the brain,
And drinking largely, sobers us again.

I enjoy enlightening ... and enlivening the spirit of the innovators.

New & Improved - Acronym Definitions

Index - Homemade Battery Packs - Updated - November 2015

EBike Toolbox - Bargains! $

Endless Sphere Wiki

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J Case Jcase 58V Low Profile Fuse Holders

Post by DrkAngel » Feb 11, 2016 2:25 pm

58V Female Cartridge Fuse Holder Source???

J Case - JCase Fuse Holders
Found a few sources for J Case in-line fuse holders
Lot of 25 @ 10ga and various 8ga <$10 each

Lot of 25 J Case Cartridge In-Line Fuse Holder w/ Bracket 10 AWG 10" Long T68549 - $79 +shipping

J-Case® FMX Series Fuse Holder, Standard, 8 ga., 60 amp max. - $8.45 + shipping

8ga 60A - 5.26 + shipping
A little learning is a dangerous thing;
Drink deep, or taste not the Pierian spring:
There, shallow draughts intoxicate the brain,
And drinking largely, sobers us again.

I enjoy enlightening ... and enlivening the spirit of the innovators.

New & Improved - Acronym Definitions

Index - Homemade Battery Packs - Updated - November 2015

EBike Toolbox - Bargains! $

Endless Sphere Wiki

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Re: EBike Toolbox - Bargains! $

Post by mlt34 » Feb 11, 2016 8:39 pm

48V loud Ebike horn for $3 and free shipping here

Image
Are you planning your first electric bicycle conversion? I wrote a book that teaches beginners everything they need to know about building their own ebike.
Then I wrote the book (literally) on building custom lithium batteries.
I also write for EbikeSchool.com, a site that does mainly how-to style articles and other informational write-ups. Check out our youtube channel for great how-to battery building videos.
Lastly, I run www.Vruzend.com, which sells solderless 18650 battery kits, 18650 cells, li-ion chargers, BMSs and more!

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