How to mount a battery in a bicycle
www.killacycle.com/pictures.html

 

Chuffin quik an all

 

Steve

 

-----Original Message-----
From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of
Russell McMahon
Sent: 22 August 2006 14:27
To: Microcontroller discussion list - Public.
Subject: Re: [EE] eBike power was Battery (SLA) deep cycle damage

 

> But how do you build a battery holder in a bike frame for 180 AA 

> cells?

 

Looks entirely manageable, as long as you are willing to use a frame 

tube of appropriate cross section and size.

Calculate how many long you want the array. eg 9 long requires 20 

cross section. Take 20 batteries and some rubber bands and sticky 

tape. Play with packing in tubes, rectangles etc. You COULD use a 

computer program, but batteries, bands and tape are liable to be a 

better starting point. Go from their ...

 

FWIW 18 in series is about 18 to 20 volts. Sounds a good starting 

point. Inverter output to a motor is liable to optimise energy use so 

exact voltage not too critical. ie you can probably get 90% plus 

efficiency from an optimised inverter. How would this compare with 

running a motor directly from a time drooping battery?

 

 

        Russell

 

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