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kevin smith's picture

Building the most efficent and lightest battery./ Pack. ?????

Hi guys i am trying to work out the best way forward....

As to making the best but not nessasery the most expencive pack .

But i know what you thinking one cancels out the other..

Well reall what i am conciddering is a life po4 cell .?

Am i right in saying that the cell pack size i/e amp ah 60 + is more efficent than lets say use have the ampage two x30..?

Because there is less trermanals inthe bigger cells therefor less waste of accsesive materails x weight .???

And also power draw is lot slower.?

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aidanworthington's picture

home made e bike fraim needs good home

hello iv made this ev fraim to fit the 48v mars motor with all holes laser cut out and a rolled motor gard with 5mm air gap round the edge and vent hole's . it will also hold 4 22ah 12v lead acid batteries and is room under them for a attrax controler or some thing simulary sized. all im asking is the cost price . anyone interested!!!!DSC00150.JPGDSC00170.JPG

Battery suggestions

I have a crystalite 408/412 rear hub on my mountain bike. It takes four 12 volt Sealed Lead Acid batteries that were very heavy and made the bike ride wierd. I was looking for battery suggestions that will not be as heavy. Also I would be nice if they did not cost an arm and a leg. Thanks.

kevin smith's picture

I have had the mother of all ideas ..........ARE YOU IN ??????

HI ALL I HAVE JUST THOUGHT OF A BRILLIANT IDEA WE WILL BUILD OUR OWN ELECTRIC SCOOTER .
all i have had some fab idears about electric scooter material used !!
also this is think outside the box i can feel patentes comming on.??
well i have the idear's we have the electronics experts out there you no who you are !! also we no bike manafactures.
and we know battery companys ..do you know what really we have it all..
LET ME KNOW what you all think rodney this time next year we could be millionaires..!!
well am not botherd about been wealthy.

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will01's picture

Electric bicycle: Enjoy the responsibility

The threat of global warming looms large over the face of earth and is attracting war scale measures from various quarters. However there is also a unique way of fighting global warming which is really fun filled. The electric bicycle has emerged as a suitable alternative to traditional vehicles and can help you to reduce your carbon footprints while you enjoy a joyful ride through the beautiful countryside!

Electric bicycleis finding a lot of acceptability across the whole world although there are different rules governing the electric bicycle in different countries. Thus in Australia the electric bikes and electric scooter have to comply with the Australian Design Rules(ADR) before the vehicles can be legally allowed on the roads. The ADR covers a whole range of vehicles which include self powered as well as motor propelled bicycle.

According to the Australian ADR a pedal cycle is one which has one or more propulsion motors attached to it having a maximum output of not more than 200 watts. Thus an electric cycle is basically a cycle which can be propelled with the help of an external device. The source of energy in the electric bike is generally clean fuel cells which provide a constant supply of carbon free energy.

The different rules pertaining to electric bikes basically throw light upon various important criteria relating to electric bicycles viz :

* Identity: The type of vehicles
* Type: The type of the vehicle as per law
* Maximum speed: The maximum speed at which the bike can travel
* Maximum power: The maximum engine power permissible
* Helmet: Is a helmet necessary.

All the above factors determine the design of the electric bike that will be launched in the market.

Electric bikes have come a long way since their early days of inception. The present day electric bikes are sleeker and can pack many features together. They are distinguished by the use of super light LiFePo4 batteries which makes them super light and also highly portable. You can carry the bike around with you wherever you go! Also the motor bicycle kit makes it possible for you to assemble the bike right inside your home by following some simple Do It Yourself steps.

Electric Bikes and Batteries offer electric bicycle kits. The website http://www.electric-bicycle.com.au provides complete information about the company.

Inspiration

My dreams to build a bike have been kick-started by various sources, so I thought I'd list a couple of places and bikes that have inspired me.

Deus Ex Machina http://www.deus.com.au/ is a custom bike shop based in Australia and they make fantastic bikes. Here's one of my favourites.
tracker650*.jpg

Ordering Components

After talking to a fella at EV works about various components I have settled on parts for my bike.

Motor: This is the less complex and slightly more powerful out of the two 48V motors. http://www.evworks.com.au/index.php?product=MOT-MARS-ME0708

battery wiring for BEV

Who knows how to wire up these dam batteries?!

New 3500Li Good First Impression

My 3500Li arrived mid December 2009. I am a lucky one, drove it right out of the crate. I had been watching these blogs for awhile and also saw youtube video of a fella uncrating his last year. Saved me a lot of problems. The packaging includes a bubble wrap tied around the handles (and brake levers.) The fella in the video had problems getting the wheels off the crate... I think he had his brakes tied down. Anyway, mine rolled right off. I opened the seat and READ THE MANUAL first.

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LOOKING FOR A 4KW MAX HUB MOTOR AND POWER TRAIN WITH 10 INCH WHEEL

Hi all im a newby here, i come across this site and found alot of your comments very helpfull but i need some help please.
i am looking for a 4kw hub motor and disk or smaller that comes with a 10 inch wheel and power train it will be pulling a maximun weight of 300kg, normal speed will be between 5 -10 mph and maximum of 25 mph, i would be realy great full for all your input on this matter many thanks Carlos Mendez in uk

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