how can i get 54 regulated volts from a 12 volt solar panel?

[raggie33]

want to charge my ebike on the road! need to get 54 volts dc from my 12 volt solar panel

 

[PhotonWrangler]

want to charge my ebike on the road! need to get 54 volts dc from my 12 volt solar panel

A boost regulator can raise the voltage but the tradeoff is it will provide significantly less current. It's Ohm's Law, P=IxE. Raise the "E" and it lowers the "I."

 

[raggie33]

btw what about inverters do i really need true sine wave inverters?

 

[alpg88]

On the road? how big is your solar panel that you will be taking with you? if it is few square feel it would be enough to charge a 14500 cell, maybe. not a 52V bike battery, and if you think you can ride and charge at the same time, it wont happen,

 

[raggie33]

just trying to increase my range even looking to see if there are charge stations out there where i put in my atm card and oay to charge bike.i get crazy ideas in my head my one ebike can hold 450 pounds im 150 so i can carry 300 pounds of gear so a trio sounds fun..

 

[alpg88]

I increase the range of my ebike by pedaling with the motor. you add more lb you need more energy to move that extra weight,

 

[raggie33]

o i like to peddle. mine does 28 mph when i peddle they say it will get 150 miles if i peddle i doubt thats true.i was hopeing when i changed tires from 20x3 to 20x2 id get more range due to less rolling resistance but not sure if i am geting more range at least the new tires are way cheaper. and easy to get at walmart

 

[alpg88]

it will in theory, but i do not think it will matter much as far as miles in real world. your best bet is to carry a spare battery, cuz how many solar panels can you have open realistically on the go? it will probably all be lost in booster inverters,

 

[raggie33]

how about if i just charge while i sleep ill sleep in the day time.i have like 12 panels but non match lol. welll some match but not all of them do. i have a folding one it can do 160 watts if i recall but even folded its huge

 

[raggie33]

Here is 1 of my bikes my goal was to have two of the same but I ordered the wrong second bike ..

 

[alpg88]

that is a cargo bike you definitely do not want 2in tires on it

 

[raggie33]

i kind of figured long as i stay under 250 pounds with me and cargo ill be ok. becuae i see humans on bikes with tires about same size where the human has to be 300 pounds alone.

 

[Galane]

Peter Sripol demonstrated an ebike towing enough solar panels to power it. Do note this was three years ago.

This guy set up a solar panel to charge his ebike. The video is from 6 months ago.

 

[raggie33]

This is my setup I'll wire it in the am im very tired today

 

[sledhead]

Genasun has a solar charge controller which boost to 48V's for bikes and golf carts. I've seen some you tube videos charging bikes with them I believe.
They are MPPT controllers and are very dependable.

 

[raggie33]

btw walmart sucks they sold me a few mppt charge controlers but they wasnt mppt hect it said 100 amps lol and it is so light

 

[raggie33]

Jahy2Tech 100A MPPT Solar Panel Regulator Charge Controller Auto Focus Tracking 12V/24V - Walmart.com

Arrives by Wed, Feb 7 Buy Jahy2Tech 100A MPPT Solar Panel Regulator Charge Controller Auto Focus Tracking 12V/24V at Walmart.com

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[snakebite]

Dont use that thing on anything you care about.
I have seen too many short through.
Happened to a DARA menber recently.
When it failed the lifepo4 packs bms disconnected which put the full panel voltage on her new icom ic-7300.
Fortunately the damage was only a tvs and i repaired it easily and cheaply.
And any panel you can carry on the bike wont do much more than trickle charge your pack.
There are a million variants of that cheap and nasty controller on the market so dont be fooled into another.

 

[raggie33]

yeah saving for a renolgy 40 amp mppt

 

[orbital]

yeah saving for a renolgy 40 amp mppt

+

raggie, I have this controller, it's electronics are potted and just a great controller.
.. actually have two__

$99 is really a steal for it.

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