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A water rocket is a type of model rocket using water as its reaction mass. The pressure vessel (the engine of the rocket) is constructed from thin plastic or other non metallic materials (usually a used plastic soft drink bottle) weighing 1,500 grams or less. The water is forced out by compressed air. It is an example of Newton's third law of motion.

AlTImeter battery

Discussion about deployment systems including altimeters, timers, air speed flaps, servo systems, and chemical reactions.
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Hawkeye
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Joined: Sat Jun 01, 2019 9:54 am

AlTImeter battery

Post by Hawkeye » Sun Jun 02, 2019 1:52 pm

Hello everyone,

I have a 400mAh 3.7 lithium battery. Will this work with the AlTImeter and the servo?

Thanks in advance for your help!



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anachronist
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Joined: Sun May 07, 2017 2:18 pm

Re: AlTImeter battery

Post by anachronist » Sun Jun 02, 2019 6:12 pm

Hawkeye wrote:
Sun Jun 02, 2019 1:52 pm
I have a 400mAh 3.7 lithium battery. Will this work with the AlTImeter and the servo?
I don't have an AlTImeter but I think it should work based on my own experience. I use a 200mAH 7.4V LiPo battery with my Eggtimer Quantum and micro-servo. The battery is way below the minimum power rating suggested for the Eggtimer, but it works for 1 or 2 flights. I have two of them because I wouldn't use one for more than two flights between recharging.



Afrom1
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Joined: Wed Nov 12, 2014 4:43 pm

Re: AlTImeter battery

Post by Afrom1 » Mon Jun 03, 2019 8:10 pm

Yes it works you just neat to make sure the servo is rated down to 3v like the HTX900 and that the servo positive and negative lead is connected directly to the battery like the tutorial form uswaterrockets shows http://www.uswaterrockets.com/construct ... torial.htm ore you may get problems like if you pull it from the vcc pin 1 on the msp 430 bord.



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