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Olidogg
Joined: 24 Oct 2009
Posts: 2
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 Posted: Sat Oct 24, 2009 10:06 am Post subject: Batteries - Volts and Amps |
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Hi all, I just came across this forum...
Can someone please give me a quick run down on volts and amps when it comes to batteries? I've got a couple of (kids) electric quad bikes minus the recharging cables. The smaller of the two has a 6 Volt 4.5 Amp rechargeable battery and the larger one has a 6 Volt 7 Amp rechargeable battery.
Rather than finding the recharge cables to suit I'm thinking of replacing the batteries completely with a much bigger battery that will last longer before it needs recharging. What's the max voltages/amps I can run?
Thanks. |
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MikeT
Joined: 21 Aug 2009
Posts: 41
Location: Dorset, UK
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| Posted: Sat Oct 24, 2009 11:08 am Post subject: |
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The idea is, and this applies to all batteries afaik, keep the volts the same and go for the highest amp/hr you can afford.
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Regards,
Mike |
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Olidogg
Joined: 24 Oct 2009
Posts: 2
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| Posted: Sat Oct 24, 2009 6:09 pm Post subject: |
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| Great, thanks MikeT. |
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fabiosmith
Joined: 29 Oct 2009
Posts: 3
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| Posted: Thu Oct 29, 2009 7:27 am Post subject: |
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Hi guys.
I want to use 15v power supply to run my project. I am using 20 volt battery but in my project i need only 15v i am using step down transformer but their is no Change in voltage by using it. Because of high volt the component is damage.
Can anyone suggest regarding this problem??
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r4ds |
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lem787
Joined: 19 Sep 2006
Posts: 275
Location: Bath, England
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| Posted: Thu Oct 29, 2009 4:06 pm Post subject: |
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| fabiosmith: In another thread you said you were in your "third year of uni studying electrical and electronic engineering"; Are you seriously asking why a transformer won't step down DC? |
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pebe
Joined: 09 Dec 2003
Posts: 1090
Location: Ellon, Scotland
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| Posted: Fri Oct 30, 2009 10:30 pm Post subject: |
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Lem,
fabiosmith just happens to post from the same IP address as robortwillys, who says he is a doctor from San Jose.
Does that tell you something? |
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MikeT
Joined: 21 Aug 2009
Posts: 41
Location: Dorset, UK
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| Posted: Sat Oct 31, 2009 9:03 am Post subject: |
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He can't spell Robert? 
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Regards,
Mike |
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