What did you do to your ebike today?

I see, so you have it configured as 12s2p with the each of the groups of 2 cells permanently connected and balanced in pairs and the pack charged as 12s. What charger and bms are you using?
 
yes. correct. 12s2p. charger and bms both are from bmsbattery.
charger is the 600w type
http://www.bmsbattery.com/alloy-shell/27-alloy-shell-600w-lifepo4li-ionlead-acid-battery-ebike-charger.html
and bms is the smart bms
http://www.bmsbattery.com/smart/330-lifepo4lithium-ion-smart-bms-for-513-cells-in-series.html

both of them are configured to your needs (hvc, lvc, battery type, charging amps etc ..) in my case i did a calculation error. i wanted the pack to be charged in 30min, so i should have gone with a 1200w charger, or at least a 900w type. but it's ok as is.

i would also recommend using DHL for shipping. both shippings arrived within a few days (and w/o customs *ggg*)
 
i partly changed a herniated tire on cb2, and took th e landrider autoshidter off.
http://www.endless-sphere.com/forums/viewtopic.php?f=2&t=12500&p=519848#p519848

tested, screwed up, and cleaned a motor for a new ebike.
http://www.endless-sphere.com/forums/viewtopic.php?f=2&t=25188&p=519828#p519828

fixed an old battery for another bike
http://www.endless-sphere.com/forums/viewtopic.php?f=14&t=22750&p=519519#p519519
 
Tench said:
Here you go, some pics of the tensioner, it is an HS3540 mid mount on a Specialized Big Hit, i used a leaf spring so that the travel is limited so it cant kick back far enough to allow the chain to come off and a screw underneath can apply more preload to the spring making it very adjustable.

P1000030.jpg



and some pics of the job so far, infact the whole thing is nearly finished now.

P1000032.jpg

P1000033.jpg

P1000034.jpg


Photos are dead bro. Can you re-up?

Tom
 
Sorry chap, i had been tidying up my photo bucket a bit and moved them into another folder,

they should be back now.

Simon.
 
Finally got that star nut found, and put on the better but still used fork on the dirt bike. This gives me a bit nicer ride, but more importantly, I also am adding a front disk. Just mechanical junk, but nice enough for the 25 mph top speed of this bike.

Then swapped CA's so the best one is on the bike I actually ride the most nowdays.

Blackcomb, new fork.jpgPost mount for CA.jpgPost mount for CA top view..jpg

Sorry about the too big pics. I must have the camera set different than usual. Love the new large screen CA. So easy to mount on the dashboard. I just drill a hole in the stem and bolt it right on front and center. Much better than a clamp on the bars, leaves room for other crap there like dual headlights or or the gopro or
whatever. I have no worries at all about the hole in the stem, they are so overbuilt nowdays.
 
Trike got a rear flat on the way home. Nice thing about a trike, one side gets a flat you just LEAN to the other side and keep going. Patched tube now just gotta put it back on.
 
Tench said:
The boxes which are the same on both sides of the frame either side of a 3mm plate "spine" are to house 6 6s8000mah zippy lipo's wired as 18s2p, 1 in the top box each side of the frame and 2 in each of the bottom boxes, the controller sits underneath the front of the top box, all the wiring fits into the triangle between. Along the the top edge and down the backside of the boxes will be another peice of ally sheet yet to be welded in at an angle to smooth the shape out and then carbon fibre side panels to cover it all up, at the moment it is like a car with no body panels! All will become apparent as it gets completed. The most inovative part of the build is being kept secret untill it is finished though 8)

Simon.
Can you show us how you are cooling the motor?
 
i loaded it up to what would be overload for most bikes:
http://www.endless-sphere.com/forums/viewtopic.php?p=523053#p523053
file.php


that's a 30lb bag in the left pod, a 34lb bag in the right, 15lb bag across the top of those, and a 17lb bag in the center frame. most of the stuff i usually carry like tools and airpump and stuff are in the left black box, with gloves and work clothes and stuff in the left rear pod, and battery in the right black box. i've carried more weight than that before, but usually just in bigger bags, and never in the frame before.
 
im always impressed with the stuff you can carry on a bike amberwolf. :shock: i normally dont see anything like that. :)

i took my bike out today for a short run around my neighborhood since the weather was cooperating, and the snow melted from the the rain. ended up breaking the wires off the plug that goes to my motor about a mile from home. i had to pedal it home like a sucker. :evil:
 
why not just twist the wires together and ride anyway? ;) i keep wirecutters that i can use as wirestrippers, and some electrical tape in my toolkit partly for that reason (though i haven't had to use them for a while).


and while you don't normally see loads like i carry, you have to remember i'm not normal, either. :lol: if i weren't afraid of the rear wheel breaking a bunch of spokes again, i'd carry even more than that in one load...but that's about the limit of what I would put on this bike. more than that and i go home and get the trailer. :(



back to the topic, i put an sb50 anderson on the 12s3p lipo pack from mdd0127 and tested it out on crazybike2 around the block. unfortunately after i got home i reset the ca before i wrote anything down from it, so i don't have any ride data. :roll: :oops: i'll probably do it again tomorrow after i fully recharge the pack, since it was kept at about half charge up to this point and hasn't been recharged yet.
 
I had a good workout riding after it got dark. Put the cruiser in seventh gear and pedaled fast manually in addition to using full throttle on the 48 volt Ping battery. Covered a total of 12.89 miles. I didn't realize that in seventh gear that full throttle couldn't keep up with manual pedaling. You can actually pedal to increase the speed. While in fourth gear full throttle is too fast for manual pedaling.
 
amberwolf said:
why not just twist the wires together and ride anyway? ;) i keep wirecutters that i can use as wirestrippers, and some electrical tape in my toolkit partly for that reason (though i haven't had to use them for a while).

i didnt think to do that at the time. doing the simplest thing didnt occur to me at the moment :oops: i got it all fixed up so its back in running order. :lol:
 
~@#$%&* !! :evil: I’m doing my taxes and looking how much I spent on my eBike & trailer & all the parts that were never used in 2011. One more night and all this will be over. I fear to calculate the monies spent on parts that were never employed, wrong match, or a complete bust. :roll:

But doing taxes and figuring the ebike costs still counts, don’tcha think? :)
Empty wallet, KF
 
I added a child seat fixated to the frame, to bring my 4y/o to school everyday. Initially, I would carry her in the trailer behind my bike, but this is much more convenient. Of course, it completely throws off the balance of my bike, but with my daughter in the back there is no technical riding anyway.

As I had my 20S3P pack on the back rack, I had to move that in order to make place for the child seat. The lipo pack is now temporarily hanging in a pannier bag just under the child seat, on the left side of the rear wheel. I had to reduce the pack to 20S2P, because otherwise it would not have fit the pannier bag, which is ok because I only use it for commuting my daily 11km. It also throws the balance of the bike way to the left. I am in the process of modifying the Falcon triangle bag into a saddle-pack bag that I can fill with lipos and throw over the triangle and fixate with the stock bands. The whole thing needs to be strengthened with alu plating to provide a good fixation of the lipos to the frame and to protect the lipos. The Falcon bag is covering all that, so that one does not look directly upon the alu plates.

Furthermore, I replaced my hydraulic Shimano Deore XT with avid Juicy Seven calipers and handles. I like the way one can adjust the Juicy Seven's sensitivity, and I can come down from 50km/h to full stop with only 1 finger left and right. Awesome.

Lastly, I replaced the curved steering bar with a straight one, added bar ends in the middle like Zombiess has shown somewhere else here on the ES forum, and added a larger mirror. As my weight is now much more to the front, no more wheelies, and I feel much more in control especially at high speeds. I took the opportunity to clean up the wires, and I am continuing to prepare for the final touch: 2WD. :mrgreen:
 
I put my hot pink scooter back together, put more air in the tires, charged it up and went for a ride around the neighbourhood. Now I need to get the 3KW scoot going.
 
I went with my kids to school me on ebike they on regular bikes. While they were in class I went on an extended ride through golden gate park on back trails. When my kids decided to go to a friend's house after school I went to the school with my ebike and bicycle cargo trailer and brought the two small bikes home.
 
Preparing a wheel to be laced some day this week.
Work of patience. Removed the eyelets from the rim, that had double eyelets.
Enlarged the nipple holes at an angle, making sure each of them has the proper angle on the good side.

Couldn't find oval washers for 12 Ga nipples, so decided to make a set of custom rim washers.
Now filing small round washers to make them oval, then file them again to give them an angle, and finally shaping the countersink to match the nipple head. That is 5 minutes per washers, but I have to do a pause now and then, to rest my fingers.
The problem of the big spoke holes on the Cro-motor is not solved yet, I still hope to find brass washers of the proper size.

That wheel better be tough, I deserve it.
It should be on my V10 next weekend.
 
pumped up the tires; adjusted the brakes; rode up to watch the whales from my favorite 'spotting' place (saw lots of whales) rode back to put the battery on the charger
got a call from my brother-forgets about putting the battery on the charger
waits a couple of hours for the battery to recharge (while not connected to the charger)

some dayz...

then I cleaned my shed.
 
It was yesterday, rather than today, but I finally fixed the bent up cargopod rails on the right where a car had forced me into the curb a week or two ago.
http://www.endless-sphere.com/forums/viewtopic.php?p=529290#p529290

While I was at it, I also FINALLY after more than a couple thousand miles replaced the "temporary" seatmounts of wood and hose clamps with welded standoffs. :lol:

I also tested a "new" charger for the battery pack, including changing it's IEC connector for andersons to plug right into the controller end of the CA-LSA's shunt.


BTW, for those that care, I realized (after how long?) that the CA's main page displays of "Ah" are not actually the Ah used up during a cycle between resets. They are the *total* of Ah used *and* Ah regenned (or charged). The actual "used" Ah is displayed on the Regen page, where Ah toggles between Fwd and Regen Ah, where Fwd Ah includes all Ah that passes from battery to controller side of the shunt, and Regen Ah includes all Ah passing the other way.


Not only is this a useful bit of info for those that have regen and keep track of usage, but it also means that anyone like me that uses regen and didnt' realize this before has actually been noting down the *wrong* Ah usage, making consumption look lower than it actually is. Probably not by much, but there you go.
 
I am going to haul trash to the dumpsters and look for some treasure to haul back.
 
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