52v battery to 48v max pair of lights

[Grendlee]

I had a stock rad mini and have since upgraded all the electrical components besides the front and rear lights. The new controller does not have a wired light cable.

I have never completed a DIY electrical project. My goal is to wire up the pair of lights to my battery and add a set of usbs for the future where I can connect Arduino/GPS/etc.

From asking Reddit, I have come up with two conclusions.

1. either I try to wire a cable that comes out the controller(void warranty).
2. or I wire a 52v to 36v step-down with an LM2596HV

If I were to go with the latter. How exactly will I do it?


Here is the cable setup from my battery, on-off switch and lights.\

https://imgur.com/a/iiiFTzT

the lights are rated at 36v on the website but have a sticker for 48v. I reckon I should have the LM2596HV chip output 36V to be safe(Does voltage affect brightness in this case?).

E-bike 6-36VDC (Xe)

https://spanninga.com/product/axendo-60/

photos of lights taken apart

https://imgur.com/a/1QNUQNo

From my understanding, this is how I should set up the components

1. Connect the battery to LM2596HV from the cables included in the photos above(Add fuse?).

- not sure what output current I should set

- could i add a 36v to 5v step down here to wire in 5V usbs/alarms/arduinos/gps in the future? Or should I use the left over 54v female plug and connect it to another LM2596HV to 5v

2. connect Switch(connected to the 58.8V MAX stepdown only

3. Front Light

4. Rear light

5. Then to the black wire from the battery

(not exactly sure where the red and blacks go.)

 

[E-HP]

Based on the specs for your light, that I assume you've already purchased, it can operate between 6v-36v. If it were me, I'd us a cheap buck converter to bring the voltage to 12v, since there are many components that can run at that voltage. Some buck converters will have dual outputs for 5v USB as well, or if you add an accessory port (e.g. cigarette lighter in the old days), you can use any accessory, including a USB converter like you would use in your car, to power your phone.

I have something like this for lights, because I sometimes run higher voltages. At 52V you have many options:
https://www.ebay.com/itm/84V-72V-60V-48V-36V-to-12V-3A-16V-90V-Buck-DC-DC-Step-Down-Power-Supply-Module/174355889509?hash=item28986bbd65:g:NYsAAOSwzCBfFbNf
USB options (I have one of the second link, but I think I paid $5
https://www.ebay.com/itm/DC-DC-36V-48V-60V-72V-to-5V-1A-USB-Step-down-Buck-Isolated-Power-Charger-Phone/272634295401?hash=item3f7a453469:g:l0IAAOSw~P9arnzO
https://www.ebay.com/itm/DC-DC-Buck-Converter-8-60V-to-5V-Dual-USB-Power-Supply-Inverters/173883984755?_trkparms=ispr%3D1&hash=item287c4b0b73:g:bJkAAOSwph5cuIgQ&amdata=enc%3AAQAFAAACcBaobrjLl8XobRIiIML1V4Imu%252Fn%252BzU5L90Z278x5ickkSG%252BOFgrj2Yvbvmrj2TAdM2akaI6XFaOTqhnxAetpiIelhCXcO4e0bmGrCXkfNaY1wylOKpPAIQodL2Jej3f746s4MuenHVh%252B1k2ZXTCcqx7vfigFmQfiw%252B8jIH3BOm%252F9BLFv8cRa%252BJpdasskIkDCX7J9SX7v9K%252FJ1yOpSCUz0tjLjW63nqHA%252BEvCzd0L%252BxYV3lRR2VI25uoafhQmp9Mnic5lH7foBtf0YLQXarNV4ryzwv9CZU1oSSxF0EtwHTRvhq%252BD8xVAoLO0x9hHrUVrrLDUzeXgPo%252FEJwocoqXu1CT5b4I1qPObGSQhYsKY1pLGxx%252BG9qAXdmRnobjCRPm0gnELnQaGUtqAEesfSQZZ2YH0EUIdAIue5%252BqGc92%252F1Bd4m63mnqC1sGe0qbAVoayz%252BC1BgZZsZtIMHmO1dHCe%252FrZh3swiKu%252BKr%252BzVXf2rKZIhMhWsVu9%252BmqUArg8%252Fia%252FT3SlyWBmVUgw%252B3pCNc5zBokL6N%252BZfWU2eG3DQYLwH3V0F%252F1QQfKd0dGaw%252BisM%252BK5%252FHJNsdpWQ4OreZLaAiLN5MwVRdolLGpw91%252Bs%252BoDQ6jXTexwUNH0%252FBTtLY5WAgkeSf1Wka41IS6BWtNAFDvmFLLnaaFbfWA70h13U5bjaeEePuMdUyBSUN9jMmc1wAbscKyKsV7O8irmjOENQDy24uDO3Cr%252Bw3zQza2NtJXoqhYl%252B6a9lWwdkBWtalupmWSDu6CXtCtWM1r6eLENBlshs7Pwpbq9q%252ByfJ7rqxqecpk7M8KhxPZGcmhXlL6TcrEpykSMg%253D%253D%7Ccksum%3A173883984755daf54151807a4d0dadc19b9fd6a3f86a%7Campid%3APL_CLK%7Cclp%3A2334524

 

[Grendlee]

Where did you take that photo of your bike? Looks like vancouver.

Thanks for your help I ordered all the parts but I need help with wiring.

What kind of wire should I use? im thinking 24 awg(wire that comes from my light)?

also, how would a go about actually wiring the black and reds.

I included a mouse drawn diagram. Call me Picasso

https://imgur.com/a/FcKXmMw


battery connections

https://imgur.com/a/iiiFTzT

 

[E-HP]

Where did you take that photo of your bike? Looks like vancouver.

Thanks for your help I ordered all the parts but I need help with wiring.

What kind of wire should I use? im thinking 24 awg(wire that comes from my light)?

also, how would a go about actually wiring the black and reds.

I included a mouse drawn diagram. Call me Picasso

https://imgur.com/a/FcKXmMw

What is light 2? Most of the time you'd wire lights in parallel, not series, unless you were trying to divide the voltage, but even that gets tricky. If you wire them in parallel, then yes, that would work.
That said, I usually try to avoid bringing too many battery voltage level wires up front (for the switch). There may be other options. What controller did you get?
Also, what are the little red and black things going up and to the right?

 

[Grendlee]

I have both front and rear lights. That was what light 2 was for. I actually bought a couple more light parts that will complicate things. I will include all of them below and draw out another diagram(going to be difficult and time consuming, but fun!!!!!!).

I have a KT 48v controller. The supplier said it would work with 52v.

The extra red and black wires I will show you in the photo bellow. It looks like the are wired in parallel.

https://imgur.com/a/3lb2DLY\


new parts I bought.

1. two led strips with turn signal functions. (I want to figure out how to wire the led strip plus the rear light I have. Safer/cooler as I suspect the LEDs wont be as visible than my current rear light)

https://www.ebay.ca/itm/2Pcs-8-Motorcycle-48-LED-Integrated-Brake-Stop-Turn-Signal-Tail-Light-Strip-Bar/223233052916?
ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

2.switch for turn signal

https://www.ebay.ca/itm/Motorcycle-Head-Light-Turn-Signal-Horn-Switch-Tool-for-Electric-Bike-Scooter/232980485928?
ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

3, usbs female

https://www.ebay.ca/itm/10Pcs-USB2-0-Type-A-Plug-4-pin-female-Adapter-Connector-jack-Black-Plastic-
Cover/201415128656?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

4 fuses
https://www.ebay.ca/itm/100x-5x20mm-Quick-Fast-Blow-Glass-Tube-Fuse-0-2A-0-5A-1A-2A-3A-5A-6A-8A-10A-
15A/174311082044?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649