Using non-standard battery packs  
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All Forums >> Radios, Batteries, Clubhouse and more >> Batteries & Chargers >> Common Sense RC Support >> Using non-standard battery packs
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Using non-standard battery packs - 11/30/2007 6:42:11 AM   
mrfranswa


 

Posts: 32
Joined: 11/19/2007
From: , MD, USA
Status: offline 		Hey guys,

I am doing a project that uses rc controls, however it doesn't have the weight limitations and I want to bulk up the battery pack to give it more hours of use. Could somebody give me a quick tutorial on how to do something like this CHEAPLY?
four 6 volt servos and a generic receiver, (whatever is cheap). As for playtime, something in the realm of hours would be good, so possibly a lantern battery or small lawn mower battery would be great. The only problem is, I can't exactly hook a car battery to an rc reciever unless I want a lot of tasty smoke and fire
       Post #: 1

RE: Using non-standard battery packs - 11/30/2007 12:46:36 PM   
k8svrick


 

Posts: 125
Joined: 3/21/2007
From: Columbus, OH, USA
Status: offline 		That's easy. Simply take multiple battery packs of the desired voltage and parallel them. If you want to make a reasonable determination as to the run time you'll have, you need to first estimate the average load on the receiver and its servos. Once you have that, determine the number of hours you want to operate the equipment.

So, with the load current and desired operating time known, do some math.

As an example, if the average load is 300 ma and you want the system to operate for, say, 8 hours, multiply the load times the operating time to determine total mah. In this example, you need a 2400 mah (2.4 ah) battery pack.

Receiver packs can be paralleled using a "Y" harness. That said you can use practically any battery power sources as long as you can get it physically connected to the receiver. So, a 6V lantern battery would do just fine. Just put your favorite reciever connector, i.e., JR, Futaba, etc. on the end of the wire. Be sure to observe polarity on paralleling and making all power connections.

_____________________________

Rick - Columbus, OH
www.ricktressler.com

(in reply to mrfranswa)
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RE: Using non-standard battery packs - 12/1/2007 4:51:58 AM   
mrasmm


 

Posts: 4422
Joined: 1/9/2007
From: Sometown, Northern Utah, USA
Status: offline 		you could also get a standard voltage regulator, LM makes some good ones, that run from 5 to 15vdc or something, and put a good sized marine battery on there, and then just have it regulate the votlage down to 5v, or 6v if all of your eq can handle the 6v power. You will loose some to heat, but if you can carry a large 30Ah lead acid pack, it shouldn't be too big of a deal. Also you can find marine batteries in 6v, and if your eq can handle 6v, then you could jsut hook it straight up.

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I don't always check every thread I respond to, so feel free to PM me

(in reply to k8svrick)
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All Forums >> Radios, Batteries, Clubhouse and more >> Batteries & Chargers >> Common Sense RC Support >> Using non-standard battery packs
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