prawnabie
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| posted on 24/9/09 at 10:39 AM |
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OT.. Making a 12v battery
Hi guys.
I am going karting again in a couple of weeks and wanted to take my bullet camera attached to my helmet with a mic and mini MP4 recorder.
I need some way of powering the 12v bullet cam and 12v microphone. There may be a simple solution to it but I cannot see it! I have looked in the
maplins catalogue to no avail.
Does anyone know a solution or something I can make that will fit into my pocket and power the cam and mic for an hour or so?
Thanks
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RickRick
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| posted on 24/9/09 at 10:44 AM |
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http://cgi.ebay.co.uk/GP-1-2V-1100mAh-NiMH-2-3AF-Cells-1-18th-Receiver-Pack_W0QQitemZ220417859394QQcmdZViewItemQQptZUK_ToysGames_RadioControlled_JN?ha
sh=item3351ed9f42&_trksid=p3286.c0.m14 8 off these joined together, use a high power soldeing iron to solder direct to the ends of the cells
take care not to keep the heat on the + end for very long
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Mr Whippy
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| posted on 24/9/09 at 10:50 AM |
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here you go - linky
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miikae
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| posted on 24/9/09 at 11:01 AM |
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A 10 cell AA or AAA battery holder from maplins possibly or even your local model shop.
Linky
Mike
[Edited on 24-9-2009 by miikae]
If it can be done it i will be done .
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02GF74
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| posted on 24/9/09 at 11:06 AM |
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lap top battery?
car key fob battery, come in 6 V and 12 V but small capacity
small 12 V lead acid? how big is your pocket?
camera batery e.g. cr-p2, 2 of, 6 V, 1.4 mAh
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tegwin
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| posted on 24/9/09 at 11:37 AM |
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in the past I have used 8aa battereis connected together end to end to give 12V..
Just use silver foil and duct tape... takes about 15 mins to put together 
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Would the last person who leaves the country please switch off the lights and close the door!
www.verticalhorizonsmedia.tv
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gingerprince
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| posted on 24/9/09 at 12:01 PM |
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4th one down: -
http://www.dogcamsport.co.uk/power_for_bullet_cam.htm
Or they will also generally work with a 9v PP3 battery, albeit for not as long as 8xAA.
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balidey
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| posted on 24/9/09 at 12:01 PM |
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can you hook up a little dynamo to one of the kart tyres? 
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woodster
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| posted on 24/9/09 at 02:30 PM |
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12 lemons .. 12 copper nails and a bit of wire ..... i think
http://video.google.com/videoplay?docid=-6226504780579469841#
[Edited on 24/9/09 by woodster]
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prawnabie
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| posted on 24/9/09 at 05:29 PM |
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Thanks guys plenty of ideas there!
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MikeRJ
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| posted on 24/9/09 at 05:57 PM |
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An 8AA battery box is 99p at Maplin. A set of alkaline cells
will give way over an hours use, probably closer to 10 hours. Use a 10AA box if you want to use NiMh rechargeable cells.
A small 12v sealed lead acid battery is another possibility. A little more expensive
but rechargeable of course.
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