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by Hillhater
Jan 25 2020 6:35pm
Forum: E-Bike Non-hub Motor Drives
Topic: 1.7kg 1000w mid drive
Replies: 25
Views: 2184

Re: 1.7kg 1000w mid drive

OK, but I'm still asking, since I only want to pay for extra power if it will contribute to low rpm torque, I don't want to go over 20mph. Assume I'm already in lowest gear, and don't want to mess with my existing drivetrain. Or do you mean as a rule mid-drives have zero adjustability in that regar...
by Hillhater
Jan 24 2020 6:47pm
Forum: E-Bike Non-hub Motor Drives
Topic: 1.7kg 1000w mid drive
Replies: 25
Views: 2184

Re: 1.7kg 1000w mid drive

Also, could the extra power of the 1000W version be devoted to extra torque for getting heavy loads up longer steeper hills, rather than increasing the top speed? Its a mid drive ! .....so the rear cassette gears will multiply the torque for hill climbing as usual. If anything, this is a refined ve...
by Hillhater
Jan 24 2020 6:35pm
Forum: Battery Technology
Topic: Using cheap adjustable power supply to get 80% charge?
Replies: 7
Views: 183

Re: Using cheap adjustable power supply to get 80% charge?

Im sure it will put some charge in your batteries, but remember it is only a power suppy ( CV reg ?) and NOT a CC/CV controlled charger. Most batteries are charged with CC initially (to about 80%). A cheap 12/24v power supply, with something like a 7210A charge controller would be safer for the batt...
by Hillhater
Jan 23 2020 9:27pm
Forum: E-Vehicles General Discussion
Topic: Which System for an Electric Car?
Replies: 15
Views: 260

Re: Which System for an Electric Car?

As I understand it, without any experiance of any of the parts: Leaf= defenetly not a performance car. Leaf motor and transmission= good for performance. Arlos controller with some leaf controller parts= good for performance. Leaf controller with just parts to be able to use it in other vehicles =?...
by Hillhater
Jan 23 2020 9:02pm
Forum: E-Bike Non-hub Motor Drives
Topic: Hummingbird 20kw-ish Mid-Drive Concept Bike
Replies: 18
Views: 543

Re: Hummingbird 20kw-ish Mid-Drive Concept Bike

..... drive sprocket forward location and suspension linkage can be used to increase traction under acceleration by pulling the rear wheel into the terrain.. Yes, its called “anti squat”. If the drive pull on the chain is above the pivot center, it will tend to compress the suspension under power.
by Hillhater
Jan 22 2020 5:41pm
Forum: E-Vehicles General Discussion
Topic: Which System for an Electric Car?
Replies: 15
Views: 260

Re: Which System for an Electric Car?

Dual motors will require 2 complete sets of drive train components. Controllers, motors, reduction transmissions to the wheel....all complexity and weight, likely needing design, development and custom manufacturing to suit your application. A reduction differential and axle is existing, proven, tec...
by Hillhater
Jan 22 2020 1:13am
Forum: E-Bike General Discussion
Topic: How hard do you have to pedal with a torque sensor mid drive
Replies: 5
Views: 149

Re: How hard do you have to pedal with a torque sensor mid drive

My (750W) TSDZ2 has 4 torque levels, from minimal to “turbo” ..wheelie level, all of which seem to work from dead stop. The top 2 settings take most of the work out of pedaling ..AND compared to other Ebike systems i have used, minimise the power consumption. It also came with a thumb throttle which...
by Hillhater
Jan 21 2020 6:17pm
Forum: Battery Technology
Topic: Practical advice on achieving the 10min full charge LTO(Titanate) cells are meant to deliver
Replies: 63
Views: 1200

Re: Practical advice on achieving the 10min full charge LTO(Titanate) cells are meant to deliver

Switching chemistries to NMC cells(32650 at 7.5ah) means that 45ah will be about 12kgs(lowering my voltage to 48v while testing too 13s6p......... Remember, reducing the voltage by 1/3 , also reduces the Whr capacity (and range) by 1/3 ! Unless you increase the Ah’s,...which will increase the weigh...
by Hillhater
Jan 21 2020 5:21pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5500
Views: 271122

Re: Wind and Solar vs Coal, Gasoline, Nuclear

billvon wrote:
Jan 21 2020 1:00pm
.... It wasn't until 1992 that the solar industry really took off here and became self-sustaining.
Its not “self sustaining” .
..it relies heavily on grants, rebates, tax concessions, preferential supply agreements, etc...just like many other public utilities
by Hillhater
Jan 21 2020 7:59am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5500
Views: 271122

Re: Wind and Solar vs Coal, Gasoline, Nuclear

jonescg wrote:
Jan 21 2020 7:34am
Nah, the guys at the ATA are pretty straight shooters. I reckon they included this article because it will start a barrage of letters...
Any site that doesn’t tolerate open discussion or alternative viewpoints, is not worth the time of day.
by Hillhater
Jan 21 2020 7:54am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5500
Views: 271122

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Thermal solar finally put out of its misery.. .....$1 billion solar plant was obsolete before it ever went online ...what caused a once high-flying startup to shut down its $5 billion Crescent Dunes solar plant in April 2019? Obsolete Technology and Mismanagement SolarReserve’s rescent Dunes solar p...
by Hillhater
Jan 21 2020 7:33am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5500
Views: 271122

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Jonescg,..you finally saw the light and quit FB,....
...but it sounds like you have some other sites you need to dump also ! :wink:
by Hillhater
Jan 20 2020 9:56pm
Forum: Large EV General Discussion
Topic: Electric go kart parts checklist
Replies: 7
Views: 431

Re: Electric go kart parts checklist

428/219.. Choice is yours, which ever is easier,.( Karts use 219 because it gives a wider range of single reduction ratios) There will be suppliers (Comet, Asuza, Phifer etc) that with either have suitable parts in stock or can make parts to order. .just be sure you know what axle size you are worki...
by Hillhater
Jan 20 2020 9:39pm
Forum: General Discussion
Topic: Delete facebook for the good of humanity!
Replies: 27
Views: 1850

Re: Delete facebook for the good of humanity!

I consider i saved myseglf several years of blood pressure issues, stress,, and wasted time,...by never joining FB , or Twitter , instagram, etc. One of my increasingly reliable “gut feelings” kept me from even exploring the options, despite much social/family pressure. Even so, i have not been immu...
by Hillhater
Jan 20 2020 8:47pm
Forum: Items Wanted
Topic: A2b Battery
Replies: 2
Views: 660

Re: A2b Battery

by Hillhater
Jan 20 2020 6:16pm
Forum: Items for Sale - Used
Topic: a2b ultra motor bike parts
Replies: 1
Views: 147

Re: a2b ultra motor bike parts

Useful to know,..
...but probably better moved to the “Items for sale”...or “Ebike Technical”. section of the forum.
by Hillhater
Jan 17 2020 4:52pm
Forum: E-Vehicles General Discussion
Topic: Can EVs survive without subsidies ?
Replies: 59
Views: 3762

Re: Can EVs survive without subsidies ?

But at your usage level..(approx 7kWh per month ?),.. you are not a typical EV user and do not travel much
by Hillhater
Jan 17 2020 4:41pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5500
Views: 271122

Re: Wind and Solar vs Coal, Gasoline, Nuclear

See those wealthy countries in the world, which do neither export coal nor gas nor uranium. Somehow those countries found other things to produce. Examples ? ...On the other Hand many countries do export raw products and fossil fuels and didn't get wealthy either. See many African countries or Vene...
by Hillhater
Jan 17 2020 7:23am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5500
Views: 271122

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Some things you cannot (at present) stop, in which case preventative actions are the smarter approach. I wish the Australian government wasn't so anti CSIRO (publicly funded science research agency) as the more tech we develop, the more new industries we can establish and lead... maybe actually kee...
by Hillhater
Jan 16 2020 7:57pm
Forum: Large EV General Discussion
Topic: Electric go kart parts checklist
Replies: 7
Views: 431

Re: Electric go kart parts checklist

Karts can have various axle sizes. 25,30, 40,or 50mm depending on its history. You will need a suitable sprocket adaptor to fir your sprocket to the axle. Note:- most karts us “219” special chain and sprockets...it may be easier to find components in that range from kart shops. Battery selection wil...
by Hillhater
Jan 16 2020 6:37am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5500
Views: 271122

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Fox is very much in the minority when it comes to media presentation of biased content. Infact, none of the free to air Australian TV channels promote anything other than “Climate Alarmism”” ..and radio is not much different. So , down here, more access to “raw data” can only be a even bigger threat...
by Hillhater
Jan 15 2020 7:00pm
Forum: Battery Technology
Topic: Thoughts on this battery harvesting scenario?
Replies: 10
Views: 682

Re: Thoughts on this battery harvesting scenario?

If I were to break apart all of the packs and test the cells individually, I can cut the nickel strips so that all of the cells retain a bit of spot welded strip. --Am I better off trying to use the small amount of connected strip for soldering or welding, or am I better off taking all of the strip...
by Hillhater
Jan 14 2020 7:06pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5500
Views: 271122

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Here is some good news for you, San Antonio, TX city counsel decided to keep our coal power plants into the foreseeable future. They even bring it in from across the country and don't use any from Texas and it cost more than the natural gas we have here. Well, at least your electric rates will go u...
by Hillhater
Jan 14 2020 7:03pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5500
Views: 271122

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Data for electricty in Germany during 2019 is out renewables for electricity: 42,6% (good wind year) coal is falling fast (happened througout most of Europe because CO2 price rose to 25€/t) CO2 Emission: -50 Million t from 2018 to 2019 specific emissions: 414g CO2/kWh in the electricty sector. I ho...
by Hillhater
Jan 14 2020 9:56am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5500
Views: 271122

Re: Wind and Solar vs Coal, Gasoline, Nuclear

ZeroEm wrote:
Jan 14 2020 9:29am
.....t but if they really want to help and take it all to heart they would at least talk about the real problem!
Which is what ? ...in your opinion .