My post:

My scooter (HCF pacelite 705) needs a new controller but the manufacturer is out of business.

I have adopted the frame to accommodate my disability issues so I am anxious to replace/rewired the existing 705 frame.

LBD14 controller has been recommended. Since I am pretty much home bound (in NYC) and I will be doing this work myself on my kitchen table (if my wife doesn't notice - not likely).

Any detailed info showing easy to follow wiring diagram and shopping/parts list including where to get plugs/connectors, throttle, and/or wiring/wiring harness and anything else I might require, like fuse holder, charger connector, breaker reset, connector crimping tool would be greatly appreciated.

Since getting around is difficult it would be very helpful if I could order everything online or by telephone.

Sincerely & thanks in advance,
D. Kogan

Reply from ESP Support:

A 24 Volt 500 Watt controller such as our SPD-24500B would be well suited replace the original controller on the HCF Pacelite 705 electric scooter. A new throttle would also need to be installed along with the new controller because the existing Pacelite 705 throttle has a lot of wires and is would be very difficult to figure out which wires would go the the new controller. However with a new throttle I could draw a wiring diagram showing how the connect the new controller and throttle together.

I do not have a wiring diagram for the Pacelite 705 scooter so I am not able to make a conversion wiring diagram, however the new controller has wiring directions which show which parts its connectors go to. So all that would need to be determined is which wires go to the battery pack, motor, power switch, etc. The wiring harness and plugs would need to be figured out as the new controller was being installed. We can supply connectors that match all of the controller's connectors so everything can be on the workbench before starting the project. Our connectors require soldering or a special crimping tool which we sell to attach the wires onto the connectors. The scooter should already have a charger port and fuse holder or circuit breaker that can be reused, or a new ones could be purchased.

1. SPD-24500B Controller
2. THR-132 Throttle
3. CRM-85 Crimping Tool
4. CNX-50 Connector X1
5. CNX-52 Connector X2
6. CNX-51 Connector X5

Here is a diagram showing how to connect the THR-132 throttle to the SPD-24500B controller:

My reply:

Thank you very much.

This will make this project so much less painful.

No questions yet, but as I get it together and get into it I'll keep you informed.

Again thank you very much.

My followup:

I have ordered everything (and more). I hope it all arrives early next week.

I'll let you know how I make out.

I may have to get a few feet of (multi colored) wire ... what gauge, 12/14/? Any suggestions? I have a source for 13 gauge.

Thanks again

Reply from ESP Support:

For 24 Volt 500 Watt and under electric scooters some manufacturers use 14 gauge wire while others use 12 gauge, so using 13 gauge should work just fine.

My post:

The parts/tools arrived!

My post:

Separating the wire bundle into individual wires:

My post:

Next I labeled the throttle wires and inserted the wire leads into 3 different CNX-51 Connectors.

My next post:

Today I got the old batteries and wiring removed (see A below).

I unpacked the new batteries (see B below).

Not in the photos, I also removed the old throttle.

Here is my first planned modification to your instructions.

The Pacelite has a keyed switch which I would like to continue to use.

Additionally I want the on/off button on the throttle. On my old set up I had both, throttle switch on the handlebar and keyed switch on the battery compartment. The throttle switch allows me to temporarily turn off the throttle without having to remove the key which is located on the side of the battery compartment. This way, when someone is helping up/down stairs and they unknowing touch the throttle, the scooter doesn't take off.

Here's my planned change. Do you have any suggestions?

Thanks in advance.

My next question.

My Pacelite has a circuit breaker (zing ear ze-700-30) where does this get connected in the wiring diagram?

reply from ESP Support:

The key switch wiring diagram that you drew is perfect. That will work great.

Wow I haven't seen a Zing Ear circuit breaker for a while, I do remember them on the older scooter models though. The circuit breaker typically gets wired into the positive wire that goes between the battery pack and controller.

My reply:

Before your reply, I figured out (w/Jon's help) what else needed to be done.

The scooter is running. Now to tidy up, get air in the tires... I'll post photos

Reply from ESP Support:

I was away from work for a few days and just got back in today.

Great to hear that you got the scooter running. Congratulations. Looking forward to seeing the photos.

My reply:

I'll take a photo of the completed scooter soon.

Although it is back together and the tires have air, I will be taking it apart again because the charger port isn't working. So I will have to verify I have this wired correctly.

Here is a wiring diagram:

My reply:

Today I found out the problem with the charging port. It was a bad connection which a little solder fixed up.

So everything is working..

Here's a photo of the finished scooter. Thanks again.