Search found 69 matches

by Okami
Dec 19 2016 3:37am
Forum: Battery Technology
Topic: My excellent adventure through some battery builds
Replies: 185
Views: 25350

Re: My excellent adventure through some battery builds

Ok - so I got a quick reply for you, perhaps you will get the chance to reply soon! A very clever way to measure the cells! Indeed. I think you have changed my understanding now on how to check cells for high load use.. Ok, some conclusions I got when I tried to discharge my Panasonic CGR-CG pack 4s...
by Okami
Dec 17 2016 8:13am
Forum: Battery Technology
Topic: Time based charging / computer controlled charger?
Replies: 18
Views: 1219

Re: Time based charging / computer controlled charger?

I think this topic brings an interesting question to the table, similar like @whereswally606 said You should also realise that discharging to store down at 3.8v is still doing a discharge i.e. cycling the pack. - Is it worth to discharge to storage voltage, if the cell is left at around 3.9-4.00 vol...
by Okami
Dec 17 2016 4:11am
Forum: Battery Technology
Topic: My excellent adventure through some battery builds
Replies: 185
Views: 25350

Re: My excellent adventure through some battery builds

I see alot of auctions in the UK on used laptop cells they seem to be getting around per 50units in unknown state and they are non returnable, I like the warnings its like tom hanks in turner and hooch this is not your room I think these ebay listings for such price is not that great! All you might...
by Okami
Dec 14 2016 5:20pm
Forum: Battery Technology
Topic: My excellent adventure through some battery builds
Replies: 185
Views: 25350

Re: My excellent adventure through some battery builds

@ElectricGod mh I think I will have to look something similar (labels) in our local shops.. ''In the early days'' of my first battery build, I considered putting one of these in my battery pack or close to a motor: http://www.ebay.com/itm/10-Pcs-Bimetal-Temperature-Control-Switch-Thermostat-40C-DT-/...
by Okami
Dec 10 2016 8:41am
Forum: Battery Technology
Topic: My excellent adventure through some battery builds
Replies: 185
Views: 25350

Re: My excellent adventure through some battery builds

@ElectricGod Well, I think this is sort of ''battery business'' is not a bad idea.. After all, im actually one of these folks who hate to see how much ''good stuff'' is dumped into the dumpster and never seen again and probably buried under a huge pile of earth along with all sorts of other stuff fo...
by Okami
Dec 09 2016 5:10am
Forum: Battery Technology
Topic: My excellent adventure through some battery builds
Replies: 185
Views: 25350

Re: My excellent adventure through some battery builds

@ElectricGod thanks for clarifying the real capability these laptop cells can do.. Well, if you say that they can withstand 2C currents, then I might be okay with just 12P. The pack would already be way over my needs, as I plan on doing a max of 30km, or 15km one way.. as the feet really feels the r...
by Okami
Dec 08 2016 1:55pm
Forum: Battery Technology
Topic: My excellent adventure through some battery builds
Replies: 185
Views: 25350

Re: My excellent adventure through some battery builds

Cool, thanks @ElectricGod for such an extensive reply! I've built a 6s 4P pack out of powertool battery, which needed to 4 extra cells to make it 6S, as it originally was 5S2P. I've considered building a laptop battery pack, though for my voltage it looks like I would need almost 20cells in parallel...
by Okami
Dec 06 2016 12:42pm
Forum: Battery Technology
Topic: My excellent adventure through some battery builds
Replies: 185
Views: 25350

Re: My excellent adventure through some battery builds

Hi there! Really nice build log you got there for your blue scooter! Very extensive and detailed build i must say! Non the less.. I was more interested in your laptop battery build.. Did you make some kind of special rig where to charge / discharge so many batteries? How did you detect when some cel...
by Okami
Nov 29 2016 2:35pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Post Your Electric Longboard or Electric Mountainboard Build
Replies: 236
Views: 83254

Re: Post Your Electric Longboard or Electric Mountainboard B

@Jynxbone6986

Do you have spring trucks or skate trucks? How is the turning radius of your board? Can you turn sharply
by Okami
Nov 10 2016 5:38pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Weight Sensing Longboard with Inline Wheel Motors
Replies: 166
Views: 46685

Re: Weight Sensing Longboard with Inline Wheel Motors

Really great project you have there.. nice to see how it has evolved and all the hurdles you have faced to improve it and to make it as it is for you now.. Is there any follow up on this one? Seems like nobody has really asked any questions.. Dont you consider selling these ''sensor fitted'' trucks ...
by Okami
Oct 31 2016 5:23pm
Forum: E-Bike General Discussion
Topic: Turnigy watt meter for $25
Replies: 352
Views: 57109

Re: Turnigy watt meter for $25

Hi there! I've been also using one ''alike'' wattmeter and I wanted to know is it possible to somehow record the readings or at least keep them for longer? AS of right now I intend to build outside power supply for powering it from 0 - 5v. Of course, it will be a battery but I have to check if it ac...
by Okami
Oct 27 2016 5:32pm
Forum: Battery Technology
Topic: Cascade hybrid batteries
Replies: 10
Views: 924

Re: Cascade hybrid batteries

Can you do a follow up on this one? Document is quite a long read.. I really would like to know how to safely ''cascade'' high discharge li ion batteries and low discharge (laptop grade) ones..
by Okami
Oct 05 2016 10:09pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Electric Mountain Board Build log
Replies: 38
Views: 7281

Re: Electric Mountain Board Build log

Did you get it up and running? Seems like a nice project / board you had there!
by Okami
Oct 05 2016 9:15pm
Forum: Stand-up E-scooters and E-skateboards
Topic: 4WD HUB MOTORS E-MOUNTAINBOARD
Replies: 13
Views: 4224

Re: 4WD HUB MOTORS E-MOUNTAINBOARD

So - has any of you came with any ideas onto which hub motor to choose? I found some 10'' tire self balance scooters, unfortunately have not found where to order / buy the replacement part motors for these.. too bad. They have nice comfy air tires, not sure about the wattage but it was around 400w a...
by Okami
Oct 04 2016 5:16pm
Forum: E-Bike Technical
Topic: Adaptto DIY 70A charging coil
Replies: 11
Views: 2871

Re: Adaptto DIY 70A charging coil

Hi there! Heads up! Unfortunately I cannot give any tips, though wanted to give thumbs up for trying to do this at home! Were looking through some ebike stuff then stumbled upon this! Glad I found it, since I could not understand what the odd looking coils were for, now I at least know that it can b...
by Okami
Sep 01 2016 3:22am
Forum: Stand-up E-scooters and E-skateboards
Topic: Custom Truck Adapters for APS/TB Motor Mounts (here: Ronins)
Replies: 13
Views: 2566

Re: Custom Truck Adapters for APS/TB Motor Mounts (here: Ron

Have you got any more pics from this? Perhaps with the belt on? Looks really great, nice documentation of everything, a pleasure to watch / go through your build! -- Got some ideas on how to mount my motor to the round skate type trucks.. nice idea of implementing that round cylinder over the trucks.
by Okami
Aug 28 2016 5:33pm
Forum: Stand-up E-scooters and E-skateboards
Topic: 2.4Ghz Mini Remote
Replies: 36
Views: 5152

Re: 2.4Ghz Mini Remote

Hi there! I've got the same mini remote but I've got into a problem. Im having a fvt 120 6s esc and when Im trying to set the throttle position (for forward and reverse) nothing really happens.. It has binded with the receiver because if I switch off the remote the receiver light shuts off too.. alt...
by Okami
Aug 28 2016 2:34pm
Forum: E-Bike Non-hub Motor Drives
Topic: Help with making a Turnigy Aerodrive SK3 work with halls
Replies: 29
Views: 13095

Re: Help with making a Turnigy Aerodrive SK3 work with halls

I know this is old.. but did you solve the problem?

Im also looking into building an e-skateboard (mountainboard actually).. so any info about motors / controllers are helpful.. especially the one with fitting hall sensors and running it sensored.. Thanks
by Okami
Jul 11 2016 6:03pm
Forum: Items for Sale - New
Topic: CHEAP NEW ORIGINAL CELLS LI-ION 18650
Replies: 789
Views: 197126

Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC/LG

I might be willing to hop on the list, although.. I would only need 18 or 24 cells, so if someone is willing to split the deal, I would be in! I'm located in East Eu, so one of us would need to split the order / reship the batteries.