Search found 171 matches

by smeagol222
Jun 19 2019 10:12am
Forum: Items for Sale - Used
Topic: Free batteryblocs and vruzend 18650 pickup montreal only
Replies: 2
Views: 307

Free batteryblocs and vruzend 18650 pickup montreal only

Free batteryblocs and vruzend kits battery bloc 20s10p 72v kit 12v battery kit Post shells and connectors and cables too! vruzend 2 or 3 14s4p 52v kits (some blue and red some orange and black) no warranties, no gaurantees all "as is" since its free! will not post, pickup is in Montreal https://uplo...
by smeagol222
Jun 09 2019 2:38pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Ebike scooter project QS 4kw V3 72v, Kelly KEB72601
Replies: 147
Views: 25726

Re: Ebike scooter project QS 4kw V3 72v, Kelly KEB72601

CA3 to kelly controller wiring and throttle settings So my post from here actually proves useful https://endless-sphere.com/forums/viewtopic.php?t=84739 CA3-KEB.png The thing is my CA3 was turned into the HC (high current) version because I already had external shunt from Grin. So following the dia...
by smeagol222
Jun 09 2019 2:31pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Ebike scooter project QS 4kw V3 72v, Kelly KEB72601
Replies: 147
Views: 25726

Re: Ebike scooter project QS 4kw V3 72v, Kelly KEB72601

Re-wiring everything The rats nest. I thought having lots of connectors was a good idea, turns out I couldn't have been more WRONG In the rain, since this bike is not very waterproof, rain would drip down wires, and go inside these blue connectors. The would corrode and cause connection issues. I e...
by smeagol222
Jun 09 2019 2:26pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Ebike scooter project QS 4kw V3 72v, Kelly KEB72601
Replies: 147
Views: 25726

Re: Ebike scooter project QS 4kw V3 72v, Kelly KEB72601

New motor is broken (not completely) So I wanted to install the CA 3 thermistor into my new 4T higher torque motor. After watching a lot of QS motor videos I saw them banging the axle on the ground to get the hub covers off. Since I have learned that banging not too hard with a rubber mallet, then ...
by smeagol222
Jun 09 2019 2:18pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Ebike scooter project QS 4kw V3 72v, Kelly KEB72601
Replies: 147
Views: 25726

Re: Ebike scooter project QS 4kw V3 72v, Kelly KEB72601

Ok a lot has happened Battery is finished- early discussion details here: https://endless-sphere.com/forums/viewtopic.php?f=14&t=99374 Latest details below Ended up going with 3x packs of 7s to make 21s15p 49.5AH pack - charged @ 4.2v = 88.2v, but will charge it lower 80% at 4.05v = 85.05v for max c...
by smeagol222
May 31 2019 6:57pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Qs hub motor clicking noise
Replies: 1
Views: 243

Re: Qs hub motor clicking noise

I fixed it

lol
It was just actually a zip tie that was rubbing against one of the plates

*facepalm*
by smeagol222
May 29 2019 10:13pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Qs hub motor clicking noise
Replies: 1
Views: 243

Qs hub motor clicking noise

Making a clicking noise. Seems worse in reverse It’s brand new qs motor that I have opened up to install temperature sensor and statorade I was banging the axles to get the plates off. Not sure if I Damaged a bearing? I looked at the stator and it seemed to rock back and forth a bit, but I assumed t...
by smeagol222
Apr 15 2019 11:25am
Forum: Battery Technology
Topic: Temperature sensor for multi-layer pack
Replies: 9
Views: 412

Re: Temperature sensor for multi-layer pack

I think I got something here. I chose to take the metal end off the led temp sensor to make it easier to work with https://uploads.tapatalk-cdn.com/20190415/725ea760d12646fa948c7e30d6079437.jpg I discovered that some of the cell spacers have a gap. I can make a small hole and push the sensor into th...
by smeagol222
Apr 14 2019 11:51am
Forum: Battery Technology
Topic: Temperature sensor for multi-layer pack
Replies: 9
Views: 412

Re: Temperature sensor for multi-layer pack

Hmm. I wonder if in general temp sensors are the same. I want to keep the LED displays I have 2 sensors with one dual led And 1 other sensor with on led So I would have enough to put 1 sensor in each 7s pack. I guess this is overkill? I could just put 1 sensor inside middle pack perhaps The temp sen...
by smeagol222
Apr 14 2019 8:31am
Forum: Battery Technology
Topic: Temperature sensor for multi-layer pack
Replies: 9
Views: 412

Re: Temperature sensor for multi-layer pack

pull the top holder off, put the sensor between the center cells and hot glue in place, run the wire to the side between the cells and replace holder. if hot glue is not desired then use kapton tape to tape it -good- against the center cell. preferably 2 layers of tape. Flippy do you mean pull off ...
by smeagol222
Apr 13 2019 9:59am
Forum: Battery Technology
Topic: Temperature sensor for multi-layer pack
Replies: 9
Views: 412

Temperature sensor for multi-layer pack

I'm wanting to put temperature sensors inside the pack I'm building here: https://endless-sphere.com/forums/viewtopic.php?f=14&t=99374 It has 3 layers, and I have a dual LED temp sensor therm1.png The probes are quite thick and are metal on the outside. Can I heatshrink around these probes? will tha...
by smeagol222
Apr 06 2019 12:29pm
Forum: Battery Technology
Topic: 18650 21s15p - 3 layers of 7s (balanced separately) advice
Replies: 29
Views: 1532

Re: 18650 21s15p - 3 layers of 7s (balanced separately) advice

I got the iron! https://uploads.tapatalk-cdn.com/20190406/f2b9d0d2dcb4f35aa81d3493a989d0c9.jpg It does have a wide tip most of the heat comes when i lay it flat, I can use the corner. Might have to get a smaller tip It’s a lot easier to work with since it’s so lightweight. It takes a while to warm u...
by smeagol222
Apr 05 2019 7:24am
Forum: Motor Technology
Topic: Installing CA 3 thermistor temperature sensor in QS motor
Replies: 4
Views: 340

Installing CA 3 thermistor temperature sensor in QS motor

Thanks Amberwolf really appreciate the advice here Ordered the statorade- i hope i don’t have to remove the motor from the stator, i was just going to squirt in between magnets (see photo). There was no temp sensor in the motor originally so i had to install one I’m excited to get CA working with te...
by smeagol222
Apr 04 2019 11:23am
Forum: Battery Technology
Topic: 18650 21s15p - 3 layers of 7s (balanced separately) advice
Replies: 29
Views: 1532

Re: 18650 21s15p - 3 layers of 7s (balanced separately) advice

It’s actually didn’t take too long
Image


Sent from my iPhone using Tapatalk
by smeagol222
Apr 04 2019 10:07am
Forum: Battery Technology
Topic: 18650 21s15p - 3 layers of 7s (balanced separately) advice
Replies: 29
Views: 1532

Re: 18650 21s15p - 3 layers of 7s (balanced separately) advice

Well this is going to take a while hehhe Image



Sent from my iPhone using Tapatalk
by smeagol222
Apr 04 2019 9:06am
Forum: Battery Technology
Topic: 18650 21s15p - 3 layers of 7s (balanced separately) advice
Replies: 29
Views: 1532

Re: 18650 21s15p - 3 layers of 7s (balanced separately) advice

Ok cool I'll just do the 16 awg between cells I have a high power Weller 250watt soldering gun, and lots of flux. Will flux each spot between the cells, put blob of solder on the tape (very quickly) Solder (tin) the awg 16 and when putting on the tape only takes a 1 sec maybe to connect awg 16 to ta...
by smeagol222
Apr 04 2019 8:56am
Forum: Battery Technology
Topic: 18650 21s15p - 3 layers of 7s (balanced separately) advice
Replies: 29
Views: 1532

Re: 18650 21s15p - 3 layers of 7s (balanced separately) advice

Ah okay- so get some awg 16 and go between spots like the yellow lines you did what did you mean by "BETWEEN the spots where you will need to weld afterwards." Do you mean I should add another 0.15mm nickel "weld" after I solder the awg 16 between (yellow lines) I'd much rather just add the awg 16 b...
by smeagol222
Apr 04 2019 8:44am
Forum: Battery Technology
Topic: 18650 21s15p - 3 layers of 7s (balanced separately) advice
Replies: 29
Views: 1532

Re: 18650 21s15p - 3 layers of 7s (balanced separately) advice

oh man I've got a bunch of 0.15mm from aliexpress *facepalm* I think what I can do with this pack is put some AWG 10 like the yellow lines you did I have awg 16 might be easier or another option I just thought of to double up on nickel. Add another layer of 0.15mm to make it 0.3mm? This would make i...
by smeagol222
Apr 04 2019 8:36am
Forum: Battery Technology
Topic: 18650 21s15p - 3 layers of 7s (balanced separately) advice
Replies: 29
Views: 1532

Re: 18650 21s15p - 3 layers of 7s (balanced separately) advice

Ah okay cool so focus on the series connections then.

Where did you get those large nickel sheets?
by smeagol222
Apr 04 2019 8:06am
Forum: Battery Technology
Topic: 18650 21s15p - 3 layers of 7s (balanced separately) advice
Replies: 29
Views: 1532

Re: 18650 21s15p - 3 layers of 7s (balanced separately) advice

Thanks for the reply- yeah I saw from the table 0.15 nickel at 8amps will be somewhere between ~7A acceptable and >9.4A poor/hot. I've got a bunch of AWG 18, I was thinking maybe even adding extra between cells also. Are you saying I probably shouldn't bother with the very long ones that connect the...
by smeagol222
Apr 03 2019 12:23pm
Forum: Motor Technology
Topic: Installing CA 3 thermistor temperature sensor in QS motor
Replies: 4
Views: 340

Installing CA 3 thermistor temperature sensor in QS motor

I recently got a QS motor and want to install the CA 3 thermistor temperature sensor in it. https://www.ebikes.ca/ca3-therm.html I've never taken apart a hub motor before and after a while to get the hub motor open I thought putting the 2 wires all the way through the axle is going to be a super pai...
by smeagol222
Apr 03 2019 9:04am
Forum: Battery Technology
Topic: 18650 21s15p - 3 layers of 7s (balanced separately) advice
Replies: 29
Views: 1532

Re: 18650 21s15p - 3 layers of 7s (balanced separately) advice

hmmm now I'm worried about the nickel as a conductor. Its strange because I've seen a lot of people making batteries with nickel strips (higher power packs) and there doesn't seem to be much concern over this. I saw this image from another post https://endless-sphere.com/forums/download/file.php?id=...
by smeagol222
Apr 01 2019 11:55am
Forum: Battery Technology
Topic: 18650 21s15p - 3 layers of 7s (balanced separately) advice
Replies: 29
Views: 1532

Re: 18650 21s15p - 3 layers of 7s (balanced separately) advice

BTW: The two lower rows in your picture look perfectly fine, upper ones are a fail. What i don't like about the strips is the very limited seriell current capability. I prefer 24mm wide 0.15mm nickel strips. But they only come w/o slots. Hi Izeman, Do you mean my image of spot welded strips on the ...
by smeagol222
Mar 29 2019 7:06am
Forum: Battery Technology
Topic: 18650 21s15p - 3 layers of 7s (balanced separately) advice
Replies: 29
Views: 1532

Re: 18650 21s15p - 3 layers of 7s (balanced separately) advice

Most of the time I will bulk charge 21s Every month or whenever it needs I will balance charge 7s. They are designed so that I can completely disconnect from each other to balance charge. Yes I can put a temperature monitor between the cells thats a good idea, what temperatures in deg C should I loo...
by smeagol222
Mar 28 2019 1:06pm
Forum: Battery Technology
Topic: 18650 21s15p - 3 layers of 7s (balanced separately) advice
Replies: 29
Views: 1532

18650 21s15p - 3 layers of 7s (balanced separately) advice

I'm building a 21s15p pack split into 3 layers (for size and balancing contraints) - no BMS each string 10 cells LG mj1 + 5 cells PF Its going only need to produce about 120amps peak (my build link below with kelly controller limits battery to 80%) https://endless-sphere.com/forums/viewtopic.php?f=1...