Need help identifying a controller built in to battery tray.

[PCeBiker]

The only thing that I can think of would be to order an entire kit that includes a battery, if something like that exists.

A Grin kit might work, but you might have to replace more parts like the PAS sensor, throttle, brake lever/switches, wiring, etc..

That might end up costing more than replacing your ebike though?

I don't know what all is involved to install a Grin kit that includes a battery?

 

[snowlover4u2005]

Maybe this will help. Looking closer at the bike everything has a JS on it the motor, cables, does this mean anything to ebikes in general? Manufacture?

 

[PCeBiker]

I can't tell from your picture, but is there three large pins with the rest being smaller on your motor cable connector ?,..

Or is that your display connector ?

EDIT: Yeah, that looks like a standard Bafang motor cable connector like mine,..

 

[snowlover4u2005]

Yes 3 bigger ones

 

[snowlover4u2005]

I'm thinking about ordering this setup and putting it in my carrier. Any thoughts why that would not work using a KT display?​

eBay https://www.ebay.com/itm/264331194234?var=563925408792​

KT controller for Polly case DP-6C Battery case controller 36V/48V 22A ebike​

T-BikeKit

• (706)

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US $76.62
Was US $83.28 (8% off)Price details
Condition:
NewNew


Sale ends in:7d 14h
Type:Controller+1-4 cable
Voltage:48V

 

[harryS]

The base is a Poly DP6 and who knows what you have. If we go by pins and number of slots in the carrier, #2 and #7 are candidates. I believe #7 is a DP6. Look carefully at the end of the cradle. Hailongs are round.

After a closer look at your photo,, I don't think your present controller base matches my picture, which was Hailong1 or Hailong 1-2, which I believe are #1 and #2 in the pic. Even there, they don't give the name of the base.

I got this picture off an aliexpress vendor I used . As it turns out, I needed #9 and it was a perfect fit for my 2015 D0olphin packs.

So you could roll the dice, but you still need a KT display, You could probably buy a 18-20A KT Controller, any necessary cables, and a display for less than taking chance on the all-in-one solution from ebay, I suggest you unplug your brake connectors to see if they are red (2 pin) or yellow (3 pin), as the ebay product is red.

 

[PCeBiker]

@snowlover4u2005 's original controller has 6 mosfets, and the one in the Ebay link has 9, and I think it's bigger?

I suspect that the proper carrier for your battery would be the lower powered controller/carrier combination?

You could probably buy a 18-20A KT Controller, any necessary cables, and a display for less than taking a gable on the all-in-one solution from ebay, I suggest you unplug your brake connectors to see if they are red (2 pin) or yellow (3 pin), as the ebay product is red.

I agree. I think that's the best idea.

You would simply cut the black and red wires on your original controller,..

Remove the old controller and throw it away.
Then attach the fat black and red wires from the now empty housing, to the battery leads going to the new KT controller that you mount somewhere else.

Keep in mind what @harryS mentioned and check all your plugs and connectors.

I'm pretty sure all KT controllers have the red 2-pin connectors for the brake switches, and some KT controllers only have one input for a single brake switch.

The throttle and PAS sensors are always a yellow 3-pin connector.

Check for male and female connectors too.

 

[snowlover4u2005]

I have the red 2 pin for brake. I really do not want the extra box hanging off the frame some where. I would think there has to be a way to fix this.

 

[snowlover4u2005]

Would it not be better to use a 9 mosfets vrs a 6?

 

[harryS]

The KT controller from T-bike-kit should be plug compatible with your throttle, PAS sensor, brakes connectors, and motor. You will need to buy a KT display, Don't get the cheap LCD1 or the LED880.. They don't let you use any of the KT features. Nine mosfets gives you more current, not a bad thing.

The unknown is the whether base on your Temu battery is a DP-6C base that will take this one.. Take a good luck at this Walmart cradle and see if yours haa the same shape at the front., If it didn't fit, you might be able to take the circuit oard out and install it in the old base, if the holes for the transistors line up, Otherwise, you might have to drill new holes.

 

[snowlover4u2005]

Awesome info thank you. Will let you know when it is installed,

 

[snowlover4u2005]

Found another snag. I have a head light. It is a female 3 pin. My cable Y into 5 connectors.

 

[harryS]

Use a 48V-5V supply and a switch, or buy a new headlight.

 

[snowlover4u2005]

I ordered this. Head light will worry about later. Display is still a ? Anyone that might be a good candidate?

 

[harryS]

I'm happy with the LCD3 but it is monochrome. Big and clunky, but easy to read. Tradeoff is becasue of size, it's easily cracked if bike falls onto it. Broken a few.

I have the LCD9 on one bike. Color, but small digits and hard to see in sun,

Others have their preferences.

 

[snowlover4u2005]

Ordered a KT LCD7C Like the color

 

[PCeBiker]

Would it not be better to use a 9 mosfets vrs a 6?

. Nine mosfets gives you more current, not a bad thing.

. If it didn't fit, you might be able to take the circuit oard out and install it in the old base,

That's the part that I'm wondering about.
The 9 mosfet circuit board looks bigger than the 6 mosfet circuit board.

I figure that you can always put a smaller circuit board in a bigger base ,but you can't put a bigger circuit board in a smaller base.

That's why I think the 15 amp controller might be the best bet?

 

[PCeBiker]

Found another snag. I have a head light. It is a female 3 pin. My cable Y into 5 connectors.

The yellow female connector goes to your throttle.

The red male 2-pin connector goes to your headlight at 48 volts.

 

[PCeBiker]

The headlights on both my ebikes run on 48 volts.

I use the headlight output to show me my battery voltage (fuel gage)

I don't know what voltage the Hailong controller sends to the headlight?