Befang 250w for my hybrid bike ??? Newbee help

[Robert Doyle]

Aww yea jeysus sorry bout that I don't know what I was thinking , are the cranks and bottom brackets easy to remove

 

[Robert Doyle]

This is a wealth of knowledge mate I'm so grateful !
Thank you d8veh

 

[Deleted member 4366]

They're very easy to remove if you have those two tools, otherwise virtually impossible.

 

[jackhandy]

They're very easy to remove if you have those two tools, otherwise virtually impossible.

Easy way to remember that the righthand bb is left-hand-thread, is that you undo each side in the same direction you pedal your bike

 

[Robert Doyle]

Hi guys
I bought the BB and crank removal tools already took apart and back together again just to see how easy it was , I decided to get the qswxk5 kit with 10.4 ah bottle battery here is the link
http://www.bmsbattery.com/ebike-kits/574-bafang-250watts-front-driving-qswxk-motor-e-bike-kit.html

I have been in constant contact with Rita on live help bms battery , her English is excellent and I have been happy so far I ordered on 14th of May and I'm assured delivery will be on tuesday 27th so I'm exited I got a pair if torque arms and a few other bits and peices spoke tool and stuff extra throttles and a few other bits so I will post the build , I must say , Rita from bms battery has given me great customer service thanks guys

 

[Robert Doyle]

Sorry forgot to say I just seen on bms battery that they have a new bottle battery in , 11.6ah 36v Panasonic 18650 cells inside , looks good I think I will buy one after my kit arrives along with the 36v 15ah 03case and rack , the 36v 11.6 ah battery is here

http://www.bmsbattery.com/36v/676-bottle-ebike-battery.html

I think I will go for s06s controller next time as I went for the built in s06p , I'm not sure if I can over volt the built in one ? I'm sure d8veh might know , I think you got one of the same battery's I bought ? Can the built in s06p be modified ? Would it handle 44v like KirstinS done on his ?

 

[Deleted member 4366]

Those built in SO6 controllers are encapsulated to make them weatherproof, so you can't modify them in any way, nor repair them. They should be OK with 44v volt, but how are you going to over-volt it with a bottle battery. The only option is a booster pack.

If you want more current, you can always chuck the controller, and use an external one.

 

[Robert Doyle]

Thanks for the quick reply D8veh yea I was thinking booster pack like KirstinS done so I can use the booster when required , I have looked everywhere on a few forums and google to find out about the built in controller with no luck , I seen a thread somewhere that said you had this battery , is it possible to wire an external controller to that battery ? Cheers !
Robert

 

[Deleted member 4366]

Yes, of course. There's a little compartment in the base of the battery. Under 4 screws and the whole controller comes out. It hangs from the two battery wires that have connectors, so you can disconnect and remove it. The short battery wires are fixed by ring terminals. You can unscrew them and fix your own wires, or you can use the leads and their bullet connectors.

 

[Robert Doyle]

Excellent ! The picture is worth a thousand words ! Thanks D8veh

 

[Deleted member 4366]

That was the wrong photo I showed before, so I deleted it. Also, what I described is the top-loading bottle battery with the spring-loaded contacts.

This is the side-loading 11.6aH type like you indicated above, which are slightly different, but the idea is the same. You just need to cut the red and black wires and join them to your new controller.

 

[Robert Doyle]

Aww you got an 11.6ah one , are they good ? I'm gonna buy one I ordered before bms had them for sale , also I love the bottle battery style but I'm going to buy a 03 style 36v 15ah but I don't like the racks , but I seen a few bikes your built stealthy looking with a sort of rack that looks like it attaches to the seat post I think and that is what sways me toward it thanks for the pic D8veh that looks really easy now I've seen that , I will buy the s06s external controller , will my battery handle the shunt mod with a booster battery ? I love how KirstinS relayed his results to everyone , I wonder what blew his bms ? Was it the booster pack maybe ? I will have to ask him . I am a pedeler I will probably never use throttle only I bought the hwbs like you advised I'm exited and I can solder , only my iron has blown after 15 years use lol I need to invest in a new one , I know I'm only a junior member but I really appreciate your help and all the info here and on ES , if I go well on my build , next one is for my missus I will have a few battery's so when I buy her kit I will have a choice of battery's thank you again ! Rob

 

[Robert Doyle]

When I buy the 03 style battery that comes with the rack I don't like , I will post the rack to you free of charge if you like them

 

[Robert Doyle]

I fell asleep today after a 47 mile journey but 22 was on the train so I done 25 miles pedalling I broke my neck 18 months ago so I still get pain in my back & neck just spasm tho but I'm getting there

 

[Deleted member 4366]

The battery itself can give a lot of current, but I think it's limited to 20 amps by the BMS. That should be enough anyway. It should work fine with a booster.

 

[Robert Doyle]

Can't wait to have a go at it il keep you posted cheers
Rob

 

[Robert Doyle]

Hi all
Sorry I haven't been back for a while my kit came by TNT today and I've just got my hands on it now on quick inspectionaround 10 spokes were totally loose and the rest just loose so I have went around the wheel with the spoke tool but I'm thinking it may not be just as easy as that lol , haven't put the wheel on the bike yet as I'm only home and just fiddling making sure wiring is ok and what fits where ? Ok so a few wires don't match but all the reds & blacks do so I'm assuming ok , BUT
Can anyone tell me what to do with the 5 wires coming from the motor wire do I just tape them up for use with an external controller ? Pics included ,
One pic of controller and the other pic has the five wires I'm talking about there is a big white square connectorblock supplied for them but nowhere to plug into the controller , it's my first build so il take my time tonight and make sure everything is done correctly , I forgot to buy rim tape so looks like il not get a test ride until I get some ,
Cheers
Rob

 

[Robert Doyle]

Forgot to say ! No import tax whatsoever

 

[Deleted member 4366]

You get the letter about the duty in about three weeks time, so don't celebrate just yet.

Looks like you got the SO6P controller, which is sensorless. It doesn't need hall sensors to work, so you can leave those 5 wires dangling or tape them up. They're not connected to anything, so no chance of sparking or anything like that. Don't lose the white block. Some time in the future, you might want to try a hall sensor controller like the SO6S for which it's needed.

 

[Robert Doyle]

You get the letter about the duty in about three weeks time, so don't celebrate just yet.

Looks like you got the SO6P controller, which is sensorless. It doesn't need hall sensors to work, so you can leave those 5 wires dangling or tape them up. They're not connected to anything, so no chance of sparking or anything like that. Don't lose the white block. Some time in the future, you might want to try a hall sensor controller like the SO6S for which it's needed.

Aww cheers I will just tape them up for now then , thanks for getting back so quickly I'm not too worried about the tax tbh , I'm well seasonedto buying from china & Hong Kong by now , just they always make me pay before I receive an item ,
Il have a go tonight , I'm not sure if I should get my local bike shop to give my wheel the once over for safety though since I've never played with spokes in my life , got a old spare tube here il stick on just for a test drive until I get some rim tape
Cheers d8veh