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Search: Posts Made By: Kevin Harvey
Showing results 1 to 50 of 64
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02-11-13, 02:04 PM
Replies: 215
Views: 128,702
Posted By Kevin Harvey

Make yr own but be carefull all connections need...

Make yr own but be carefull all connections need be so as will not loosen (locktight them ,u stuff the BMS's otherwise)) get the biggest BMS . In total still cost about what a pack costs but you can...
02-11-13, 01:56 PM
Replies: 7
Views: 1,093
Posted By Kevin Harvey

just added picture of my throttle , it front...

just added
picture of my throttle , it front view on left side ( can't understand why anyone would have it on right side)I doctor all the r side twist grip type to being left thumb aas when...
02-04-13, 04:02 AM
Replies: 7
Views: 1,093
Posted By Kevin Harvey

How do you find it on the hills as i had a non...

How do you find it on the hills as i had a non geared hub one 500w, & sold as wouldn't make our hill. less to go wrong with yours though. We'e in summer & never do we have a frost ,we have sea & salt...
01-28-13, 03:14 AM
Replies: 7
Views: 1,093
Posted By Kevin Harvey

I elongated 2 65mm pvc sealed ends over cut out &...

I elongated 2 65mm pvc sealed ends over cut out & folded to flat top of battery height, made square pvc for BMS then fibreglassed all together. PVC coursely sanded bonds well with epoxy.Have made...
01-26-13, 11:21 AM
Replies: 215
Views: 128,702
Posted By Kevin Harvey

This is my type pack , Fibre glass goes ea side...

This is my type pack , Fibre glass goes ea side of front stem on any bike.

295475
01-24-13, 02:10 PM
Replies: 0
Views: 608
Posted By Kevin Harvey

best battery& my best bikes

295252295253295250Perhaps best batteries are home made as this,, Fibreglass -4 12ah cells(or 15) each side water proof & sealed.Red is usual 500w cyclone very light 23k & blue is 960w cyclone with...
01-21-13, 05:30 PM
Replies: 7
Views: 1,093
Posted By Kevin Harvey

Bike pictures

298776My 2 best bikes one heavy 36v 960w cyclone, the other 24v 500w ( Al framed) but best all rounder.Showing my fibre glass home made batteries for front lowdown weight ,one can do all the hills in...
01-21-13, 03:59 AM
Replies: 15
Views: 2,886
Posted By Kevin Harvey

Till you have to lift it over a fence-----I have...

Till you have to lift it over a fence-----I have 1-36v 1000 watt with nuvinci hell she's heavy to peddal & 3 --500w cyclone kits on bikes , the light highclass Al framed one is still a bike that can...
01-15-13, 01:35 PM
Replies: 215
Views: 128,702
Posted By Kevin Harvey

I do not know about warranty but so far these ...

I do not know about warranty but so far these people are good but u must up the Amps on the pack to be bigger to meet yr motor
01-13-13, 01:25 AM
Replies: 72
Views: 27,808
Posted By Kevin Harvey

To charge each cell you mean the 4-6 or what ever...

To charge each cell you mean the 4-6 or what ever that are there in paralell , this would be hard like 4-6 different places to charge , after each time using the bikes.As it is I get sick of...
01-11-13, 04:07 AM
Replies: 0
Views: 1,113
Posted By Kevin Harvey

Any good? Kelly controller for cyclone

For the cyclone 960w, Taiwan man says 30% more torque with kelly controller (I have the 650w controller converted to 960w with resistor) is this extra power possible.?
I started my increase in...
01-09-13, 09:20 AM
Replies: 215
Views: 128,702
Posted By Kevin Harvey

I make my own packs-- buy chinese cells...

I make my own packs-- buy chinese cells (BMSbattery,or greenbatterybike ,or another) easy with big cells ,don't save much but get a better battery front mount under & ea side .The Web sites fool you...
01-07-13, 11:34 AM
Replies: 72
Views: 27,808
Posted By Kevin Harvey

i admire your knowledge on batteries, I've heaps...

i admire your knowledge on batteries, I've heaps of cells that I'd like to re -use but am frieghtened i'll ruin them without paying more to get new BMS for them. How low a current would you use...
01-07-13, 09:26 AM
Replies: 0
Views: 481
Posted By Kevin Harvey

using old cells up

With the probable prospect that money would be wasted on a new BMS making a pack from old cells, can an old 12s BMS be used----- for example as a 8s or 4s to make a pack from old cells.-----with the...
01-04-13, 11:46 AM
Replies: 40
Views: 7,034
Posted By Kevin Harvey

Yep with reserch they are good keeping to midrive...

Yep with reserch they are good keeping to midrive & 500w plus just cost more & less hand cleaner.
12-25-12, 05:42 AM
Replies: 72
Views: 27,808
Posted By Kevin Harvey

I gave up the small cells now only use the screw...

I gave up the small cells now only use the screw together type much easyier to replace,8 cells to 1 say 24v pack with only the signal wires to solder. can't upload a picture but the pack i've made...
12-24-12, 12:07 PM
Replies: 0
Views: 640
Posted By Kevin Harvey

Whats better gears than derailer

The pain with cycling in town is getting to the lower gears unexpectedly ----Nuvinci hub is good for the big bike I have but the small lighter weight ones that get peddled home ( Grandchildren up an...
12-24-12, 11:36 AM
Replies: 40
Views: 7,034
Posted By Kevin Harvey

For bike kits -----many but midrive for the hills...

For bike kits -----many but midrive for the hills as gears are needed.Cyclone (other names too for this one)its midrive has all parts off net. these have more to go wrong but to me easyier to work...
12-21-12, 03:22 PM
Replies: 17
Views: 4,413
Posted By Kevin Harvey

i Buy cells off http://www.bmsbattery.com/ & BMS...

i Buy cells off http://www.bmsbattery.com/ & BMS use their pack or make up pack -must use thingy to get BMS big enough for current ---cells are then replaceable- 2 other web sites am trying out they...
12-21-12, 02:41 PM
Replies: 15
Views: 2,886
Posted By Kevin Harvey

I myself for any bike would never buy new as i've...

I myself for any bike would never buy new as i've always seen for the price of 2nd hand one,,--add on bike kit( for me so far 500w midrive cyclones) & for the price of a new bike we've got a E bike ,...
12-21-12, 02:29 PM
Replies: 0
Views: 1,031
Posted By Kevin Harvey

What causes Stuffed battery

A not so often used 24v 15AH battery (LiFePo4)on a bike i sold to an elderly guy has 5 cells with below 2 v could it be that the C rating of the batteries was not high enough for the BMS attacthed to...
12-20-12, 07:44 PM
Replies: 15
Views: 2,886
Posted By Kevin Harvey

Best E bike so far -----

This would be the best Built up E bike on the market so far ( as its mid drive )similar to my Al framed Small Scott mountain bike with 500w cyclone my battery 12ah ea. side of frame, more forward...
12-20-12, 07:13 PM
Replies: 24
Views: 1,842
Posted By Kevin Harvey

I did look up Reef bikes & not impressed as i...

I did look up Reef bikes & not impressed as i know so far no hub motor can not do the hills as mid drive system & if you want one thats already made go to this its virtualy the same as what i make up...
12-17-12, 03:56 AM
Replies: 1
Views: 521
Posted By Kevin Harvey

Battery- Was the c rating the cause of battery becoming damaged & can old cells mix.

Just had a guy with his not that old with little use battery die. (5 low v cells ) i suspect it was because the creating of this battery the BMS was high current enough for the motor but the cells c...
12-17-12, 03:42 AM
Replies: 6
Views: 1,166
Posted By Kevin Harvey

Thank you we never stop learning--sure is a lot...

Thank you we never stop learning--sure is a lot for me with electrics. i just had a Battery pack up need to start another thread as different suject.
12-12-12, 02:26 PM
Replies: 0
Views: 570
Posted By Kevin Harvey

Battery replacement

When the battery cells are stuffed in the Aluminium case can one buy the small cells already made up as for high amp continious disch. they are hard to find for my cyclone 500 w. Also it seems with...
12-10-12, 11:57 AM
Replies: 6
Views: 1,166
Posted By Kevin Harvey

I did know that a brushless motor was 3 phase but...

I did know that a brushless motor was 3 phase but with what i had seen up until now was that it was 3phase but still DC(which has always had me puzzeled) -as DC for brushless motors is not stated-&...
12-07-12, 11:55 AM
Replies: 6
Views: 1,166
Posted By Kevin Harvey

best motor type

I was reading a web site about Electric car motor convertions (which i'd like to do one day) & on this site they said that Dc motors were nowhere near as efficient as AC as the torque was greater all...
11-26-12, 04:25 AM
Replies: 24
Views: 1,842
Posted By Kevin Harvey

Ive' had one hub motor ,not geared & made sure...

Ive' had one hub motor ,not geared & made sure when i sold it ,it went to a guy living in a city without hills (500W )I know geared hub would be better than that but I then went to midrive cyclone...
11-20-12, 03:08 AM
Replies: 24
Views: 1,842
Posted By Kevin Harvey

Tesla is probably geared as geared hub motor & 1...

Tesla is probably geared as geared hub motor & 1 gear ,but 100times bike range 100x the weight 100x the battery than bike = same but hub motors still not with it or mid drive would not be rated as...
11-16-12, 04:21 PM
Replies: 24
Views: 1,842
Posted By Kevin Harvey

E bike techknowledgy is prehistoric

When one sees the performance of the TESLA car & the fact that that it does not use gears then hub motors can only br called prehistoric.
11-01-12, 10:46 AM
Replies: 4
Views: 1,051
Posted By Kevin Harvey

Picture of bike with nuvinci couldnt find thisis...

Picture of bike with nuvinci couldnt find thisis my first with welded on freewheel b to the left side . Flogged it till she burnt out.YHi bob seems your nuvinci is different or you attached another...
11-01-12, 10:38 AM
Replies: 4
Views: 1,051
Posted By Kevin Harvey

My nuvinci is type N 360 with one 16t cog & one...

My nuvinci is type N 360 with one 16t cog & one chain from the crank. did you add another?
10-31-12, 01:36 PM
Replies: 4
Views: 1,051
Posted By Kevin Harvey

I'v tried using picture on this before But don't...

I'v tried using picture on this before But don't work for me ----I use 3 chianwheel kit ---Motor driving to one of 2 cogs at chainwheel crank that has freewheel then chain to hub with nuvinci . When ...
10-26-12, 05:09 PM
Replies: 4
Views: 1,051
Posted By Kevin Harvey

Cyclone 960w motor drive gear change

My cyclone 960w motor has with hill climbing always been under too much load &not developing its greatest torque at the speed that I'm peddl & seeing the other mid drive system with two lots of chain...
10-26-12, 01:34 AM
Replies: 125
Views: 10,203
Posted By Kevin Harvey

I live on a mountain (NZ ours are mountains) in a...

I live on a mountain (NZ ours are mountains) in a city of hills, tried hub motors no good & am now with 960w cyclone with nuvinci for those in our city without the big hill I recommend 500w cyclone...
08-20-12, 04:48 AM
Replies: 7
Views: 1,101
Posted By Kevin Harvey

Yea i live on a mountain in our city I'm always...

Yea i live on a mountain in our city I'm always saying the bl--dy thing is getting steeper (age related as going over the 70) I have a problem with BMS's shutting down when plugging one bat pack into...
08-20-12, 04:35 AM
Replies: 8
Views: 3,101
Posted By Kevin Harvey

Surfed those site wishthey'd say the volts but...

Surfed those site wishthey'd say the volts but presumably 8s means 8cells at 3.3v stay with the china one I think also the current for BMS ? i found always have BMS current higher than max of...
08-18-12, 02:31 AM
Replies: 21
Views: 15,521
Posted By Kevin Harvey

tried a 500 hub motor from e bay sold it to a guy...

tried a 500 hub motor from e bay sold it to a guy in a city with no hills ( perhaps a geared hub motor might have been better butthis thing was usless ), now I;m a cyclone fannatic ( Taiwan ) real...
08-18-12, 02:24 AM
Replies: 21
Views: 15,521
Posted By Kevin Harvey

tried a 500 hub motor from e bay sold it to a guy...

tried a 500 hub motor from e bay sold it to a guy in a city with no hills ( perhaps a geared hub motor might have been better butthis thing was usless ), now I;m a cyclone fannatic ( Taiwan ) real...
08-14-12, 02:28 AM
Replies: 8
Views: 3,101
Posted By Kevin Harvey

I'm New Zealand i buy from...

I'm New Zealand i buy from http://www.bmsbattery.com/ mind you I;m about to track the charger they hav suposed to have sent, Check out price

the charger arrived i still recommend these people...
08-14-12, 02:19 AM
Replies: 5
Views: 1,032
Posted By Kevin Harvey

Hose clips would hold a throdle to any handle bar...

Hose clips would hold a throdle to any handle bar , I modify all cyclone twist throdles rights side to thumb on left ( not like motor bike but right hand needed for gears) with the stuff we buy here...
08-14-12, 02:00 AM
Replies: 7
Views: 1,101
Posted By Kevin Harvey

Cyclone & Nu Vinci Hub

i found the best thing since sliced bread---- & thats the Nuvinci hub on one of my many cyclone kit powered bikes , they are incredable --i can wis round streets & intersections etc faster & much...
08-11-12, 02:02 AM
Replies: 4
Views: 782
Posted By Kevin Harvey

this is my suplier in china seems the cheapest I...

this is my suplier in china seems the cheapest I can find http://www.bmsbattery.com/theres nothing as good as LiFepo4 battery even are more economical with how long they last, probably yours was an...
08-06-12, 10:06 PM
Replies: 23
Views: 3,031
Posted By Kevin Harvey

U need hills to demonstate an E bike , If younger...

U need hills to demonstate an E bike , If younger I'd do that without motor
08-06-12, 09:47 PM
Replies: 23
Views: 3,031
Posted By Kevin Harvey

I'm a New Zealand cyclone fannatic , live on a...

I'm a New Zealand cyclone fannatic , live on a small mountain & need the best for hills or towing, Had 450 ezip motor as midrive blew up that had hub 500 usless ,sold to guy in flat city, now my best...
07-30-12, 03:56 AM
Replies: 215
Views: 128,702
Posted By Kevin Harvey

The specs. on these battery cells & the BMS data...

The specs. on these battery cells & the BMS data is all on there web site or as much as i can give anyone , The main thing is getting the big BMS , The oldest one i sold a guy has been going near...
07-27-12, 02:35 AM
Replies: 215
Views: 128,702
Posted By Kevin Harvey

http://www.bmsbattery.com/ this is the the people...

http://www.bmsbattery.com/ this is the the people who i've bought many batteries from 7 now buy the cells & BMS to make my own batteries. they are not generous when yuo make a mistake ordering etc...
07-25-12, 01:19 AM
Replies: 215
Views: 128,702
Posted By Kevin Harvey

BMS is battery management system with LIFePo4 ,...

BMS is battery management system with LIFePo4 , no cell can be discharged lower than say 2.6v & no higherthan 3.4 when charged or they stuff it . there are cheap BMS for low wattage motors which will...
07-25-12, 01:14 AM
Replies: 215
Views: 128,702
Posted By Kevin Harvey

I'm in new Zealand , i ve bought many batteries...

I'm in new Zealand , i ve bought many batteries from a web site named BMS (don't know how to give a link) but they are by the time I get the cells & the right BMS it cost still a lot less than any...
Showing results 1 to 50 of 64
 


 
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