Homemade 12V to 48V DC-DC Converter Battery Charger for Electric Scooter/Bike

This is a PC board I made so I can charge a 48V seal lead acid battery from any 12VDC source. This design is simple and uses an off-the-shelf audio crossover coil. It charges my battery from a 12V source that gets switched on once the sun goes down. In the morning my batteries are ready to go and it didn't cost me anything. Energy from the sun. However I can use with and 12V source that can provide 2-3 amps of power. There is a special circuit that will stop the SMPS once the battery level low around 11 volts. Next day the sun comes up and charges the 12V battery.

Category:

Autos & Vehicles

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• amps

[theonelinerkid]

could you use a slooar panel awell as this

[X2YeZCAMCNC]

@theonelinerkid yes I feed the solar panel to a 12V battery let it charge all day and switch this on after the sun goes down

[X2YeZCAMCNC]

@theonelinerkid yes I actually feed the solar panel to a 12 battery and let it charge all day and then switch this circuit on after the sun goes down

[gollumondrugs]

Good workmanship! 

[X2YeZCAMCNC]

@gollumondrugs thanks

[ComputerWhack]

Lol im a noob at this, So this board is turning 12Volts into 70+ Volts?

Couldn't that be used to save power?

-Once again, noobs with boards, hardware, etc.

Very interesting though.

[X2YeZCAMCNC]

@ComputerWhack It is justed to convert voltage and current. Power is actually lost. Not what you are thinking. Thanks

[houdinifan27]

Thumbs up if you jumped at the spark at 3:07 too! lol!!

[Thequestman]

What efficiency do you think this is running at? P.S. Do you have the schematic available? Thanks! Awesome!!!!

[aisanicole]

hi

do u provide the complete diagram and list of parts?

can you email me at 1littlecreations@gmail.com on how to avail

the compete diagram and the parts list.

thanks and hope to hear from you

Godbless

Nicole

[thegenrl]

hi do is that 8pin dip thing a MC35063? do you have schematics i can take a look at? i can give you my email if that's ok.

[patdinelle]

Dave,

Do you sell the board, and component list to make this power supply

[vieira1800]

ola amigo como ag posso ter um desse corversor

[IsItTrue99]

Nice one!

[KTWap]

where can we get the electric scheme?

[Kalkaekie]

Interesting project. Thanks for sharing.

[RobertMOdell]

Why is the 48V battery needed. Why not a 12V battery?

[GearClinkz]

hey good job there =D i have been looking for a circuit like this one for months! can you put a link for the scematic and the components that you used? i really want to make this! =) thanx in advantage.

plese anwer asap.=D good job again.