I'd like to be more in touch with the parts that make up a scooter.

It's super-simple Angela... goes batteries to controller to motor, plus the accelerator wire to the controller. And add some wires to the battery to connect the charger maybe. That's about it! There'll be other "frills" like maybe a brake cutout wire from brake to controller, and wiring for lighting...

Brushed motors might have only one two-conductor wire from controller to motor, brushless motors a few because most use sensors to help the controller "know" where the motor is rotated to at any point. So ya get bigger power-conducting wires from motor to controller plus a few littler wires for the (low-power) sensors.

Executive Summary... motor wired to battery pack with controller stuck in the middle. The rest of it's more or less just bicycle mechanics.

Lock

Lock...WHERE do I find controller info? NOT in my manual ANYWHERE? Where on the bike? Or maybe I google SHO COMMANDER...gotta love those e-scooter names!:)

Hi Angela,

Your controller is most likely under the seat bucket. So you'd have to remove the bucket to see it. Take a look at this persons site http://www.bergerweb.... he's done a lot of stuff to his ebike and I think it'll be of some use to you and others here that are curious about how things work.

-Vic

This is a new EV parts supplier from Panyu District,GuangZhou that has been introducing themselves to the North American ebike community, EV Assemble:
http://www.evassemble...

Their web site is a refreshing "western style", and initial contacts look promising. Their English language skills are excellent and they are carrying a range of better quality components like Headway LiFePO4 cells and packs, Kelly controllers etc etc that many in the North American EV community are familiar with already. They themselves manufacture an interesting BMS product that uses capacitive transfer rather than the more common shunt-type BMS designs ...

They are currently offering 48V 20Ah LifePO4 (Headway) packs at $626 plus shipping - likely another $100 or so - with a ONE YEAR WARRANTY:
http://www.evassemble...

Compare this with Ping currently offering 48V 20Ah packs with cells of unknown manufacture, cheap 2A charger thrown in and only 7 day warranty at $799 including shipping "Buy Now" on ebay...

lL0cK

Rather expensive aren't they Lock.

I'll email you a better Trading Company with the same products at lower prices.

...and yet another option... Elite Power Solutions with offices in Phoenix, AZ:

http://elitepowersolu...

They are presently selling 12V packs of Thundersky LiFePO4 cells (so each pack is four cells, packaged into a plastic box)... here is a 36V pack one ebiker made using three "silver boxes":


Each silver box measures 178X76X165 mm (7.0X3.0X6.5 in) and weighs 3.0 kg (6.6 lbs)

Elite is currently selling a 48V package including four of their 12V silver boxes:
http://elitepowersolu...

... for $714.20 (plus some shipping charge from AZ.)

- Package contains 16X Thunder Sky LFP20AHA cells,
16x EPS balancers and a matching charger.
- Capacity: 1.02 kWh; Voltage range: 44.8-58.2 V.
- 1 year limited warranty included with package purchase.

...including a 6A charger (full charge in 3.3hrs!)

The Thundersky cells are rated as:
- Max Discharge Current: 2C (continuous) / 10C (impulse)
- Cycle Life : 1500 (80%DOD)
- Operating Temperature: -20 to 65 C or -4 to 149 F
- Self Discharge Rate: <3% monthly

And their 48V kit includes jumpers, bolts, washers, and split washers to hook the 12V modules together.


Here's the fun part. Elite has a Canadian distributor in B.C. that are listing this same 48V kit with charger for only $589Cdn right now (!!!) Electric Autosports Inc.:
http://electricautosp...

tks
Lock

that is a very good deal even if you need to add the cell balancer at $89.00 and $124.00 CAD for a 12V X 20Ah Module is good but only 2C Discharge is pretty low but for an E-Scooter 2C would be adequate. Would make a good replacement when the AGMs die out.

and of course Thanx for drawing our attention to this Vancouver based supplier.

Lock...thanks for the BC supplier info.
angela

Yer welcome... It is a heck of a deal from that Canadian outfit... Half watt I paid ($/Wh) for brand-name LiFePO4 at Christmas time...

I do see Power-Sonic 12V 10Ah batts on ebay.ca at the moment, four of them including shipping for $212.25... which *sounds* cheaper, but the difference in performance (long life and longer range and higher speeds with no voltage "sag"when the pack is nearing empty) between this 28lbs of lead and 27lbs of Thundersky lithium would be like night and day. Basically ya should be able to plug these TS cells in and have several years of service before any noticable loss of performance...

It would transform your ebike experience.

...but I don't think they would fit in Angelas battery compartment

The power-sonics measure L 5.94" x W 2.56" x H 4.61" (if this is a standard size for 12V 10Ah SLA?) while the TS 12V packs are listed as 7" X 3" X 6.5".

*Maybe* the silver containers each TS 12V pack can be dispensed with (TS cells need to be "strapped" aka bound with something to prevent the cells from swelling if they are charged at high rates, and the silver boxes may or may not play a part in this. The Cdn.seller would be able to say about this.) *Maybe* the cassette the SLAs are installed in can be dispensed with to make more room in the battery compartment... *Maybe* three TS 12V batteries could be fitted within the existing battery compartment and a fourth mounted somewhere else within the body of the scooter-style ebike?

Lots of maybes

Lock

Just noticed this other thread going on at the moment about those TS 12V packs:

Elite Power Solutions is now selling 4 packs of differnet AH cells with BMS. I don't know when they started this but I noticed it tonight. So maybe your best bet is to buy the BMS with the packs (4 cells 12v and AH as required).

http://elitepowersolu...

Re: BMS for thundersky batteries

Are you talking about the balancers... its not quite a bms. Its just a balancer. It bleeds the cells down to 3.7v and only work if your charger is in the voltage range close enough to allow it to work properly. If its charging voltage is to high it wont work so well. But the cells do have a wide working voltage range. My suggestion also is if you are trying to drag these Thundersky cells in the mud on every cycle then these arent the cells for you. You are just asking for charging and balancing nightmare. 16-18ah is as far as i would discharge on a regular basis. Discharging to 19-20ah will get this cells out of wack and you will have hours upon hours of balancing and the performance is just crappy at the end of the pack.

* They sell a bms on their site. Its like a bms on steriods and probably wont be cheap.
*************************************************************************

So yah, looks like Joshua is correct and a proper BMS would need to be purchased as well...
Lock

"My suggestion also is if you are trying to drag these Thundersky cells in the mud on every cycle then these arent the cells for you. You are just asking for charging and balancing nightmare. 16-18ah is as far as i would discharge on a regular basis. Discharging to 19-20ah will get this cells out of wack and you will have hours upon hours of balancing and the performance is just crappy at the end of the pack."

Lock...what do you mean? I'm trying to follow.
angela