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I always buy from Aliexpress as it is cheaper and usually arrive within 14 days, UK sellers stick on a big mark up so refuse to buy. You can try Panda bikes but they use the julet plug and play system so makes changing connectors difficult.

Looks like two of them suffered a very bad internal thermal issue, the other cells should be good for torch use or other use. Which Panasonic cells are they ?

Crossfire has cut out issues not the best buy out there to be honest, Halfruads won't tell you or admit to this but be warned. Any bike should be capable of riding/commuting in the rain, leaving a bike out standing in rain for hours on end is asking for trouble especially with the battery and...

For anyone still considering or wondering if a 36v hub will work at 48v then the answer is yes, if you don't go banana's. Fit a new same make 48v controller, don't go mad on amps 17a is plenty. Don't expect a high rpm hub like a 328 36v rated one to be great on hilly stuff better with sub 270rpm...

The first one is the one I used Awol, It doesn't take any real current to speak of as it wired in to the V+ side from the bms.

Any one stupid enough to connect a 48v battery to a 36v controller without checking the caps rating is likely to fry the controller straight away as mostly they only have 48v rated capacitors which won't handle 13s/54.6v. 48v capable controllers will have 63v rated caps inside.

It's been tried and tested many times and over volting doesn't damage a hub unless you go banana's. Deciding to over volt you need to take in the current winding speed (rpm) as this will increase by 33% to give a faster wound motor and not labour the motor too much, the only component to upgrade...

It is when you have experienced both. On my town/errand /commute Norco 700c, I am still plodding along with my 36v 29E's. They still provide the range I need locally but I can certainly feel the voltage sag and hesitant power supply if asking for too much amp draw. Probably sometime next year I...

If only I lived a bit nearer I would take the PF's or MJ1 without a second thought.

I have a sneaking feeling one of them wouldn't keep you very warm.

48v gives you 33% extra of every thing, you can keep it in reserve and use it occasionally to gain range or on hilly terrain use the extra torque and speed for less range. Keeping the gearing the same you should see 33% more mph if your cadence is fast enough and can be maintained.

Yes & Yes. 48v battery will have more wh if the ah is the same, so significant range will be greater. 33% more range. As an example battery range. 36v x 14.5 ah = 522wh. 48v x 14.5 ah = 696wh. A 48v 11ah battery would be as near as a damn the same as a 36v x 14.5ah. Torque will increase by...

Might help members if you mention your location as posting these/ finding a courier might not possible and pick up might be the best option. Also age of cells used/construction date. How many cell packs do you have , is it just the five you mentioned ?

I have KT lcd1, 2 & 3 models and use KT 36 & 48v controllers as well as the dual volt ones and have yet to encounter any issues with any item not work.

Some of the no name really cheap controllers can be fraught, a few years ago a chap came on here wanting to know what was what with his wiring. :eek: We asked for a pic or he provided one can't think which now, however every wire combo used the same 3 wire colours. Purple, black and blue or...

Later KT's are quite good with wire colours 5v is either red or brown, gnd is black. White is commonly used for speed sensor. Other hall/signal wire for peripheral's tends to be either blue, yellow or green. Nearly all the big major motor players use a standard hall wire sequence for...

You should have little or no issue the lcd jst will be correctly wired as will the dj7061 hall block, all you need to do is check that all wire sequences are correct with any peripheral's.

KT is Keunteng Electronics a reliable company, many bikes use their easy to come by components and they are the top component for diy use, I use all their component's in the main part as do many others on the forum. Compatibility is uniform with KT and I mix and match any 3rd party peripherals...

Any KT controller will work just a case of finding one with the correct wire connectors or change them to suit. If you have lcd display then it will only be compatible with a KT controller, controller software/programming is not universal or one fits all. The only time this works is using items...

Where on the bike did it take the bash and how did it occur ? Some pics of any damage might help. The fault could be any where, controller, screen or cable between the two. Depending on the bash if the hit involved the battery location then an internal fault is possible, a wire joint or a cell...