Search found 1371 matches

by SlowCo
Feb 16 2020 3:56pm
Forum: Items for Sale - New
Topic: 20Ah li-on NMC cells UK London new boxed £9 each on 50
Replies: 85
Views: 7246

Re: 20Ah li-on NMC cells UK London new boxed £9 each on 50

I like these, I like them a lot but according to my calculation I need approximately 100 of them for my scooter, and when I look at energy density (either by volume or by mass) these seem not that great compared to let's say 18650 - is this the case or am I missing something? What voltage is your s...
by SlowCo
Feb 15 2020 8:49am
Forum: E-Scooter and Motorcycle General Discussion
Topic: Conversion Honda motorcycle to electric 96v - 8000w hubmotor - 6.3kWh
Replies: 15
Views: 2410

Re: Conversion Honda motorcycle to electric 96v - 8000w hubmotor - 6.3kWh

:thumb:
Smart to use CAD (Cardboard Aided Design) to trial fit the battery box :wink:
Have you already contacted the RDW for this build? Are they a little more forgiving these days to get DIY EV builds tested and road legal? Good luck with the rest of the build and enjoy!
by SlowCo
Feb 15 2020 8:41am
Forum: E-Bike Build Threads / Photos & Video
Topic: PWD's Rocky Mountain Element - refresh
Replies: 34
Views: 3565

Re: PWD's Rocky Mountain Element - refresh

pwd wrote:
Feb 13 2020 2:58pm
I don't expect it to be pretty but as they say "A grinder and paint makes me the welder I ain't"

My nickname for the bike is The Ali-Express.
:lol:
These desciptions would fit my build very well too... :wink:
by SlowCo
Feb 14 2020 11:43am
Forum: E-Vehicles General Discussion
Topic: C Cab Hot Rod Power Advice
Replies: 190
Views: 4836

Re: C Cab Hot Rod Power Advice

Just use the PAS function. By just rotating the pedals the motor will assist at the level you chose.
by SlowCo
Feb 14 2020 2:57am
Forum: E-Vehicles General Discussion
Topic: C Cab Hot Rod Power Advice
Replies: 190
Views: 4836

Re: C Cab Hot Rod Power Advice

That trike is 8) :thumb:
Get a BBSHD (or BBS02) mid drive motor on that for electric support :D
by SlowCo
Feb 13 2020 3:13pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Cecil's ride - 2017 Raleigh Kodiak 1 full suspension 27.5 plus bike with 750w TSDZ2 mid drive and rear rack dog carrier
Replies: 40
Views: 3348

Re: Cecil's ride - 2017 Raleigh Kodiak 1 full suspension 27.5 plus bike with 750w TSDZ2 mid drive and rear rack dog carr

You might be able to mount batteries on the bottom side of the down tube. As long as you have clearance to the front tire it keeps the low but still forward. cecil02.jpg If the tire would hit the top pack on full compression you could rotate your mid drive motor towards the rear as to make room to ...
by SlowCo
Feb 13 2020 10:58am
Forum: E-Bike Non-hub Motor Drives
Topic: Sur-Ron - New Mid drive Bike
Replies: 4459
Views: 434686

Re: Sur-Ron - New Mid drive Bike

Unfortunately I only have 1 foot and just received the bar riser for my MTB as I'm 1,78 meter. No idea what that is in the non metric world :wink:
Those bars do look cool though!
by SlowCo
Feb 13 2020 8:58am
Forum: Motor Technology
Topic: Ampera/Volt inverter with Lebowski brain
Replies: 67
Views: 5758

Re: Ampera/Volt inverter with Lebowski brain

Came across this thread and just wanted to say: great work so far. :thumb:
I will follow this thread. Good luck with the build.
by SlowCo
Feb 12 2020 3:31pm
Forum: E-Bike Non-hub Motor Drives
Topic: Sur-Ron - New Mid drive Bike
Replies: 4459
Views: 434686

Re: Sur-Ron - New Mid drive Bike

elik1111 wrote:
Feb 12 2020 3:22pm
Which Handlebar have you installed?
Harley Davidson Chopper bars... :lol:
by SlowCo
Feb 12 2020 2:04pm
Forum: EV Business World
Topic: Tesla vs Porsche
Replies: 15
Views: 1072

Re: Tesla vs Porsche

by SlowCo
Feb 09 2020 6:27pm
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Kawasaki D-tracker Build
Replies: 13
Views: 554

Re: Kawasaki D-tracker Build

Very nice work :thumb:
by SlowCo
Feb 09 2020 4:52pm
Forum: E-Vehicles General Discussion
Topic: C Cab Hot Rod Power Advice
Replies: 190
Views: 4836

Re: C Cab Hot Rod Power Advice

Batt pack.jpg BMS.jpg Fortunately they did use a BMS. It seems it's rated for 60A hopefully (!) continuous with a higher peak amperage. So that is a relief. Just use it as is and if the circuit breaker trips when accelerating you could bypass the breaker for the discharge amps with a separate port ...
by SlowCo
Feb 09 2020 12:04pm
Forum: E-Vehicles General Discussion
Topic: C Cab Hot Rod Power Advice
Replies: 190
Views: 4836

Re: C Cab Hot Rod Power Advice

Again: don't charge your pack with that 30A rectifier without monitoring the voltage of the pack. Preferably the voltage of each cell. If they sold you that rectifier as a charger and not included detailed instructions or a manual I wonder if there is even a BMS (Battery Management System) in the ba...
by SlowCo
Feb 09 2020 11:39am
Forum: E-Vehicles General Discussion
Topic: C Cab Hot Rod Power Advice
Replies: 190
Views: 4836

Re: C Cab Hot Rod Power Advice

FWIW....This is the charger they sell with the battery pack. http://www.cnczone.ru/forums/index.php?act=attach&type=post&id=10282 It looks like it is a rectifier and NOT a CC/CV charger so DON'T charge your battery pack FULLY with it! It seems to keep outputting a constant current of 30A and not sw...
by SlowCo
Feb 09 2020 5:10am
Forum: E-Scooter and Motorcycle General Discussion
Topic: Petrol motor conversions (mid mount gearbox)
Replies: 4
Views: 222

Re: Petrol motor conversions

slofy wrote:
Feb 09 2020 12:20am
Am I missing something, I'm wondering why nobody is doing this?
Because it's better to replace the weight of the gearbox and ancillaries with a stronger (heavier) motor and battery pack.
by SlowCo
Feb 09 2020 4:49am
Forum: Large EV General Discussion
Topic: 3WD hybrid GO-4 project
Replies: 19
Views: 1835

Re: 3WD hybrid GO-4 project

That is an ideal front fork to place a hub motor in/on. You can replace the lower clamp with (a steel) one that fits the flats of a hub motor axle to clamp the axle in place.
by SlowCo
Feb 09 2020 4:23am
Forum: E-Vehicles General Discussion
Topic: C Cab Hot Rod Power Advice
Replies: 190
Views: 4836

Re: C Cab Hot Rod Power Advice

It seems that battery pack is sold as a "portable energy storage unit". And it looks like there is only a single in/out connector for the power. Probably because it is meant as an electrical buffer in a total system. So the max. 40A current on the sticker and the 63A built in circuit breaker are the...
by SlowCo
Feb 07 2020 5:42pm
Forum: E-Vehicles General Discussion
Topic: C Cab Hot Rod Power Advice
Replies: 190
Views: 4836

Re: C Cab Hot Rod Power Advice

There is already a 63A breaker (fuse) on the battery pack so what is the thermal 100A fuse for?
by SlowCo
Feb 07 2020 12:12pm
Forum: E-Bike General Discussion
Topic: Fat Bike vs (Hardtail)-MTB
Replies: 7
Views: 348

Re: Fat Bike vs (Hardtail)-MTB

Why are you riding on road with the suspension locked? Surely it's much more comfortable with the rear suspension working. Especially when carrying a heavy back pack. And why not place your battery pack in front of your down tube?
What FS bike do you have?
by SlowCo
Feb 07 2020 12:05pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Sur Ron brake lever
Replies: 3
Views: 146

Re: Sur Ron brake lever

Ask in the Sur Ron threads where most owner come here on E-S.
by SlowCo
Feb 07 2020 6:40am
Forum: E-Bike Build Threads / Photos & Video
Topic: My new Cab Motor Works Recon
Replies: 7
Views: 248

Re: My new Cab Motor Works Recon

EEB frame with QS273 motor?
What specs (batt. pack, controller, etc.)?
And why is the rear disk brake larger than the front while it should have regen braking...?
by SlowCo
Feb 06 2020 3:44am
Forum: E-Scooter and Motorcycle General Discussion
Topic: Observed trials bike designing
Replies: 54
Views: 1703

Re: Observed trials bike designing

Why not get or build a 72V battry pack and use a lower gearing (mid drive QS motor, not hub?) to be able to use all the power the motor has to offer?
by SlowCo
Feb 05 2020 8:27am
Forum: Battery Technology
Topic: EASY/FAST/INEXPENSIVE way to connect pouch-cells together
Replies: 24
Views: 873

Re: EASY/FAST/INEXPENSIVE way to connect pouch-cells together

For pouches with thin metal tabs that are long enough and not too wide maybe a tube squeezer key made of bare copper wire could be used to roll them up together. Then put small metal paper clamps over the rolled up tabs and remove the hinged wire "handles".
tube squeezer key.jpg
tube squeezer key.jpg (25.28 KiB) Viewed 296 times
paper clamp.jpg
paper clamp.jpg (14.63 KiB) Viewed 296 times
by SlowCo
Feb 04 2020 12:19pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "Lingbei MM28.250 torque sensor mid drive"
Replies: 384
Views: 60123

Re: New "Lingbei MM28.250 torque sensor mid drive"

@slowco that's an excellent proposition. The tdsz2 is very nice for range. It's pretty noisy and lack torque but it does make wonders for battery consumption :) The TSDZ2 probably only lacks torque at the legal 250W limit on standard firmware :wink: Although I have no experience with that mid drive...