Charging an E-bike with Solar!

Using a 100W 20V portable solar panel, i setup my charge controller to charge my 48V battery (54V max).
Mppt 7210A boost charge controller
amzn.to/3rhIqxD
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100W portable solar panel
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amzn.to/3pvh5aZ

[@Tyr-not-mars]

At last ..!.. someone finally does a practical demonstration of something a solar panel actually may be of use some day ..Thanks!

[@Scaliad]

That charge controller is a nice find... Thanks, Steven!

[@stevenc22]

Welcome

[@Scaliad]

@stevenc22 Looking into it further, it seems that the controller is not really MPPT, but I don't see where that really matters much for this application.

[@francisdoll1253]

Interesting solar charger,thanks!

[@ps3customgamer]

That was painful to watch but not as painful as I thought it would be

[@thegiantswordworkout]

How long total from that pannel to charge it fully?

[@ReviewsandTech]

Nice idea,iI just so happen to have the same 100w solat panel, but will that solat voltage converter stop charging the battery when it reaches 100%? Great video man, thank you.

[@stevenc22]

Yes. It is programmed with max voltage of battery and turns off when full.

[@ReviewsandTech]

@@stevenc22 Good to know, thank you so much.

[@petem.3719]

So what are you looking at to charge a 15AH battery with that solar charger? 20 hours or so?

[@stevenc22]

My battery worked out to under 8 hours

[@WildNomadicFilms]

Can e-bike batteries be charged whilst riding do you know?

[@stevenc22]

Yes

[@SonnyDarvishzadeh]

@@stevenc22 Bosch, Shimano, Specialized, TQ, Ebike-motion, Fazua, Panasonic, Yamaha or any safe brand ebike producer does not allow charge while riding. You have retrofitted a Chinese made motor that accepts that, it doesn't mean all e-bikes behave like that.

[@stevenc22]

You understand charging the battery has nothing to do with the motor manufacturer and most BMS will take charge while discharging

[@lukewalker1051]

Pro tip: If you use whitening stripes on your teeth, just smile at your bike. It will stay charged.

[@FAIDCLAN]

i have a 48v battery what should i set the volage to

[@DesertRider928]

Dose the solor charger stop when battery hits the set voltage?

[@stevenc22]

Yes

[@francisdoll1253]

What's about the connector to the battery? Is this a common connector?

[@petem.3719]

Not if it's on my battery

[@stevenc22]

Yes most e bike batteries use a barrel connection for charging

[@SkyForce6700]

I could never stand being in that loud of a sound for hours. Not a very enjoyable camping trip.... Also I don consider that solar panel portable (in order for it to be considered portable it would ned to be 1/4 that size) and that converter thingie seemed heavy to carry in back pack and uses up a lot of space.

[@stevenc22]

The inverter is incredibly light. The solar panel is kind of big.

[@steve-r-collier]

@@stevenc22 just strap the panel on a pannier rack,maybe modify it so abit wider and longer

[@12vLife]

I asked Bard AI if the BMS and overcharge protection on most Ebike 48v batteries is reliable and it said yes. I then asked it if a 50v 430w solar panel could ever put out more than 60v with a load and it said no. I'm wondering about a controller like this one for that config: Genasun GVB-8-Li-54.2V-WP, 8 A (Input)

[@stevenc22]

Yes this controller can boost up to 90v

[@jameswoodruff540]

Ohms law one of the basics of electronics. Voltage = Amps * Resistance. You can increase the voltage but you sacrifice current or Amps to do it. Think of it like a spray nozzle on a garden hose, you can increase the pressure but you are restricting the volume of water coming out.