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| Battery Pack https://www.8devices.com/community/viewtopic.php?f=1&t=40 |
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| Author: | Will3942 [ 01 Feb 2012, 17:30 ] |
| Post subject: | Battery Pack |
Is there anyway to use a battery, rechargeable preferably. Is there anyway or any battery packs? |
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| Author: | Saulius [ 01 Feb 2012, 17:44 ] |
| Post subject: | Re: Battery Pack |
You can always connect 12V/7Ah battery like this (see below) Carambola consumes 1.5W, it is 0.125A at 12V. So with this battery it (theoretically) should be alive for 56 hours, which is more than two days. |
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| Author: | Will3942 [ 01 Feb 2012, 17:51 ] |
| Post subject: | Re: Battery Pack |
Nothing smaller that could be handheld? |
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| Author: | Saulius [ 01 Feb 2012, 18:25 ] |
| Post subject: | Re: Battery Pack |
First you should ask yourself how long do you need to be running on battery. Lets say you need 3 hours. Lets assume you have 12V battery. Carambola alone consumes 0.125A of current at 12V (12V * 0.125A = 1.5W). So you need battery with capacity 3h * 0.125A = 0.375Ah. Which is theoretical. In general multiply this number by 2 to be sure. So 0.75Ah battery should be fine. There can be used almost any charging circuitry. |
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| Author: | Will3942 [ 01 Feb 2012, 18:31 ] |
| Post subject: | Re: Battery Pack |
What sort of connections would it be? |
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| Author: | Saulius [ 01 Feb 2012, 18:35 ] |
| Post subject: | Re: Battery Pack |
Sorry, I don't understand what you need. |
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| Author: | Will3942 [ 01 Feb 2012, 18:47 ] |
| Post subject: | Re: Battery Pack |
I need something that will last about 3 hours, a lightweight fairly small battery pack. |
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| Author: | Saulius [ 01 Feb 2012, 19:07 ] |
| Post subject: | Re: Battery Pack |
For instance you can use this battery: http://www.hobbyking.com/hobbyking/stor ... _Pack.html. Just keep in mind that LiPo batteries can't be discharged completely. Also you should buy charger together with this battery. |
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| Author: | Will3942 [ 01 Feb 2012, 19:11 ] |
| Post subject: | Re: Battery Pack |
Would that plug straight into the carambola development board? |
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| Author: | David [ 01 Feb 2012, 19:22 ] |
| Post subject: | Re: Battery Pack |
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