Author Topic: Feasibility of a robot idea - battery query  (Read 463 times)

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Offline FlyingPonchoTopic starter

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Feasibility of a robot idea - battery query
« on: April 05, 2013, 12:08:13 AM »
Hi All,

In your opinion, is it possible for a battery pack to be created which would provide a robot enought power to be able to move a wheeled container, (weighing between 10kg up to 250kg), for up to 40 minutes at a top speed of 5 mph, before it needs recharging.

To make it more interesting, the robot must be no more than 15cm high and up to a metre long! I have a design in mind, but is it possible to get a suitable battery for this?

Thanks in advance

Offline Jon_Thompson

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Re: Feasibility of a robot idea - battery query
« Reply #1 on: April 05, 2013, 02:51:43 AM »
When I was a kid, we had a lawnmower that ran off a car battery, so lead/acid would probably do it.
You can still do a lot with a small brain.

Offline waltr

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Re: Feasibility of a robot idea - battery query
« Reply #2 on: April 05, 2013, 07:55:36 PM »
A powered wheel chair should do that.

Offline jwatte

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Re: Feasibility of a robot idea - battery query
« Reply #3 on: April 06, 2013, 10:54:49 AM »
Given that my car weighs two tons and runs at 55 mph for close to 100 miles purely on battery, yes, that's possible.
It's mostly a question of cost and weight. You'll likely want to look at LiPo batteries and compare to LiFePO4 -- the latter will have a much longer lifetime (measured in charge/discharge cycles) at a slightly higher cost, so more expensive to build, more economical over time.

Offline FlyingPonchoTopic starter

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Re: Feasibility of a robot idea - battery query
« Reply #4 on: April 06, 2013, 05:11:57 PM »
Thanks for your suggestions; I'll look into the LifePo4 option as it's about 19cm high which may be ok.  Now to see if I can fit enough to be able to lift a 250kg weight :>

 


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