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Creating a Battery Power Pack


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#1 Gauss

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Posted 22 April 2011 - 08:06 PM

Hey, I am new to the Netduino community. I've had alot of experience in robotics, but to be frank never on this small of a scale. I've done alot of work with FIRST and such where the batteries are effectively car batteries capable of massive current draws. I am looking to build some small scale projects and am trying to figure out the best way to set up a portable power supply. This is what I currently have on the table: http://www.batteryma.../BAT-U9VL-X.pdf or http://www.batteryma...dfs/rli9600.pdf (Big difference is recharging, both are capable of 100mA+ continuous) For most of my applications I would think a 9V power supply should be sufficient, what I am primarily worried about is current. Running motors adds up to large current draws coupled with large current spikes. I am curious what other members have done in this regard.

#2 Chris Seto

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Posted 23 April 2011 - 07:17 AM

Have you looked at a lipo battery from Hobbyking or some such? The voltage will be higher ( around 11.1V for a 3 cell pack), but it should do very well. I use RC batteries whenever I can. Of course, you could run the supply from a switch mode power supply (SMPS) and regulate the voltage down to 9V.

#3 Gauss

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Posted 25 April 2011 - 12:07 PM

Have you looked at a lipo battery from Hobbyking or some such? The voltage will be higher ( around 11.1V for a 3 cell pack), but it should do very well. I use RC batteries whenever I can. Of course, you could run the supply from a switch mode power supply (SMPS) and regulate the voltage down to 9V.


I have not, good idea. 11.1V is within the tolerance of the board according to the datasheet, so I shouldn't need to regulate it down.

Most 'hobbyist' blogs suggest a 9V battery, but a typical 9V battery won't supply the current I think I will need.

#4 UltraPhil

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Posted 25 April 2011 - 06:35 PM

I have not, good idea. 11.1V is within the tolerance of the board according to the datasheet, so I shouldn't need to regulate it down.

Most 'hobbyist' blogs suggest a 9V battery, but a typical 9V battery won't supply the current I think I will need.


I use ZIPPY Flightmax 2200mAh 3S1P 25C and IMAX B6 Charger/Discharger with my A-10 warthog (smallscale).

But that's not the point; I just wanted to warn you to be _very_ carefull with these batteries.

Or else...





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