Under car lighting

[Kookapeli]

Has anyone used them fluorescent strips that go under your car for anything else ?? and what battery supply did they use, I want to pimp my wheelchair with one and needs 12V to run it. Any suggestions would be appreciated.

THIS is what I bought

 

[Leodahsan]

It says "DC 12V" on the title.

You can make something more custom if you want it.
Rhodamine + Violet led or highlighter fluid + violet led...

:yh:

 

[MessiTom]

Small, plenty of amperage, 12 volts. I use two 12volt 7.2ah scooter batteries on my telescope to run fans and dew heaters.

Amazon.com: Razor E300 12V 9Ah Scooter Battery : Replacement: Sports & Outdoors

 

[Kookapeli]

I was hoping for something smaller, my chair already has 2 batts to run the motors, it's heavy enough as it is

would something like THIS work ?

 

[BShanahan14rulz]

If you already have a charger for SLA cells, this site has lotsa different sizes:
UPS Batteries | Gruber Power I've been meaning to do more research on SLAs.

You probably already have some 18650s and charger for 'em, maybe make a 4S pack with a 12V regulator.

 

[Kookapeli]

Unfortunately the charger is built in to the chair and can't personally access the batts There is no room for any SLA cells anyway

 

[MessiTom]

can you tap power from your on board batts? What is theyr output?

 

[Kookapeli]

My chair is on loan indefinitely so I can't mess with the working parts so to speak hence i need a separate batt. THIS should suffice shouldn't it ??

 

[MessiTom]

Thats a neat little batt. ^ what do your lights draw amp wise? you would need a conector that matched that batts output or cut and splice.

 

[Kookapeli]

SMD LEDs draw 20mA each so 1.6A in total

 

[MessiTom]

And the battery you posted is 6.8Ah correct? Should be plenty.

 

[Kookapeli]

I'm assuming SMD LED's draw 20mA from THIS not sure if all smd LEDs are the same, but they shouldn't vary that much. I'ma gonna order it

 

[Things]

6.8Ah will last for hours on that LED strip.

 

[Kookapeli]

That's what i wanted to hear It's gonna take a few weeks for the power pack to arrive, but i'll post pics

Also, the wires on the LED strip aren't marked :/ don't really want to damage it by reverse polarity. Anyway of testing which is
positive or negative

 

[Leodahsan]

You can lower the current draw using a resistor right? A big, power resistor can halve the power drain (and brightness ).

 

[Kookapeli]

Ahh, good thinking batman