Battery power:

[Alan Quay]

3 thick wires are power, the five thin ones are hall sensors (x3) and power for sensors (x2, normally black/red).

All this needs to be connected to a controller, as does battery and whatever controls you need.

 

[billyx22]

Thanks,
I get all that but when I get a battery they don't come with a cable, do they?
so how do I connect the battery to the controller, don't worry I will have you confused before long lol

 

[flecc]

The controller will have a set of cables to match, plus the connections for the battery terminals, throttle, pedelec sensor and any other facilities that it has like brake cut-outs,

Here's an example controller illustrated on ebay, and you can see all the connectors etc coming from it.
.
.

 

[billyx22]

I am missing the point somewhere.
When I connect all the power leads and hall sensor from the bike cable supplied with the wheel to the controller where does the cable from the battery to connect the power to the motor come from..... Sorry for being an idiot

 

[flecc]

Asking for information is never idiotic, it's sensible. The power from the battery doesn't go directly to the motor. The battery connects to the controller and the controller feeds the necessary power pulses to the motor.

If your controller doesn't have the two cables to go to the battery, you'll have to connect some.
.

 

[billyx22]

Thanks for your patience.
My cyclomatic is rear wheel motor.
The cable from the wheel connects then to another cable which I always assumed was going to the battery.
The battery then has the controller housing underneath where then ALL connections are made.
I am just trying to compare that to what is needed with the new wheel.

 

[freddofrog]

Whether you buy a bottle battery or make one yourself from those 3 SLA's (by putting them in series), you will have 2 wires to connect the battery-pack to the controller. There will be 2 fat wires on the controller, the battery-pack connects to those, either directly or via a plug.

As already said, the wires from the motor also connect to the controller.

There will also be other ancillary bits to connect to the controller.

Basically the controller slices up the current and sticks the current in bits into the motor. Hence the word "controller".

 

[freddofrog]

Thanks for your patience.
My cyclomatic is rear wheel motor.
The cable from the wheel connects then to another cable which I always assumed was going to the battery.
The battery then has the controller housing underneath where then ALL connections are made.
I am just trying to compare that to what is needed with the new wheel.

that has the same arrangement, the motor connections go into the controller, the battery-pack connects to the controller, the other bits connect to the controller ....everything connects to the controller, the controller controls the motor

 

[billyx22]

That's it I got it.
I was not clear if the battery would come with the 2 wires to connect the battery-pack to the controller.
Now it all makes sense, finally!
Thanks everyone.

 

[Deleted member 4366]

The batteries normally don't have any wires. Instead, they have a connection point of some sort. You have to put the matching connector on two thick wires to join them to the battery, the same at the controller end. When you choose a battery, ask again so that we can tell you what you need. If you haven't got a soldering iron, get one now and start practicing.

 

[billyx22]

Thanks D8,
My initial thoughts were correct then, asking how to connect the battery.
You have given me the answer I was searching for, thanks.
If, for example I bought a frog battery, and this being a front wheel motor with only 60cm of cable what do you think I would need, bearing in mind the frog has the controller encased inside it I beleive.

 

[Deleted member 4366]

The frog battery has two wires with bullet connectors on. The wires are in the compartment under the battery. You won't need any additional wire, but you may have to change the connectors to fit your controller. The wire to the motor should come with the motor. If your motor wire isn't long enough, you have a bit of a problem because there's at least 8 wires and you need special motor wires to avoid a mess.

 

[billyx22]

Just two things if i may.
1. I thought frog batteries had the controller inside?

2. Did you happen to look at my two pictures of the wheel on the previous page, it has the motor wire, 60cm
As I am starting from scratch my first thought was, because of the shape of the bike to use the frog but as that would go behind the rear seat and it's a front wheel motor how would I go about connecting it all.
If you look at the connectors on the motor wire then look at this link do you think there could be a way?
http://www.ebay.co.uk/itm/Electric-Bicycle-ebike-motor-extension-cable-3phase-hall-effect-/121623891755?pt=LH_DefaultDomain_3&var=&hash=item1c51594f2b

 

[Deleted member 4366]

That cable has the right wire and connectors for your controller but not for the. motor. Easiest would be to cut off the connectors and solder them together. You can cut the wire to the correct length then..

 

[billyx22]

Sorry,
Cut which ends off?
The lead end?
Lead and motor ends?
Solder all the wires together?
How would they connect?

Keep in mind you know what you are talking about lol

 

[billyx22]

Sorry but if you could clarify a little please.
Do you mean cut off the connectors from the new wire end and also from the motor end then solder each of the five small wires colour to colour then solder the other phase wires colour to colour.
I could do it just need to be clear that's what you mean.
Thanks

 

[freddofrog]

^ yes that is correct, but you don't need to cut wires and solder if the connectors match.

 

[billyx22]

Thanks,
I thought you said the motor wires did not match?

Anyway looks like the frog battery idea is a non runner, I would have to raise the seat post and I am too small!
Will have to be a rack type battery.
Thanks again.

 

[freddofrog]

I thought you said the motor wires did not match?
.

d8veh said that, but he meant the connectors in that extension cable

but anyway, as already said, all wires from the motor will go to the controller, if the connectors match great, if they don't then it's up to you how you join the wires, as long as you make sure that the right wires on the motor are joined to the right wires on the controller using the colours as you described in #36

 

[billyx22]

Oh dear,
My apologies for thinking I was replying to d8veh, think it's past my bedtime!
And thanks for the advice.