lite stick glitching with 9volt battery

cheapflyr · May 01, 2001, 07:13 PM

when i fly my lite stik with a 9V alkaline battery it flies for about 2 min then the motor just cuts off, but i still have servos working. when i look at it after landing nothing is out of place and i advance the motor and it starts right up, does that same thing over and over with the flight times getting shorter and shorter, whats wrong? oh ya i have a GWS flight pack with it.

Ray Brooks · May 01, 2001, 08:56 PM

The akaline batt have too much internal resistance and will not support the amp draw of the motor. Try the Rayovac Ultra NIMH from the Wal Mart camera department. I use two of these wired in series.

Ray

radix2 · May 01, 2001, 09:36 PM

Quote:

Originally posted by Ray Brooks:
... I use two of these wired in series.
Ray

I think you mean wired in parallel...

deadcell · May 01, 2001, 10:07 PM

I had the same thing happen with mine. What is happening is that the motor current is drawing down the voltage level inside the battery and causing the low voltage cutoff in the esc to kick in. And when you land and take off again the battery has built back up just a little but not up to its former voltage level, ergo the reason for the shorter flights after the first time the motor cuts out. the easiest thing to do is go up a size in your batteries. I changed to 110ma and the problem went away. Thanks DC
I forgot to mention that if you try to use the 9volt batteries with a motor that draws very many amps at all, the low voltage cutoff will kick in almost instantly and you won't ever get it to leave the ground. Alot of this is having to do with the size of your esc. Most micro esc's will only support 2 sub micro servos, anything any larger and the amp draw on the motor batteries is too high.

[This message has been edited by deadcell (edited 05-01-2001).]

May 01, 2001, 07:13 PM	#1
cheapflyr Registered User mercer Island Joined Apr 2001 120 Posts	lite stick glitching with 9volt battery when i fly my lite stik with a 9V alkaline battery it flies for about 2 min then the motor just cuts off, but i still have servos working. when i look at it after landing nothing is out of place and i advance the motor and it starts right up, does that same thing over and over with the flight times getting shorter and shorter, whats wrong? oh ya i have a GWS flight pack with it.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
What spare parts to order along with Lite Stick?	MK	Parkflyers	16	Jan 17, 2002 11:03 AM
Using Lite Stick with 9v NiMh Battery	wayne	Parkflyers	15	May 20, 2001 10:39 PM
mini ifo with lite stick gear?	cheapflyr	Parkflyers	3	May 17, 2001 02:47 AM
Lite Stick Battery Configuration	elecwings	Parkflyers	4	May 14, 2001 10:33 PM
Lite Stick Battery Question	wayne	Parkflyers	12	May 10, 2001 02:53 PM

RCG Sites

About RCG

Features

Tools

Media

Topics

May 01, 2001, 08:56 PM	#2
Ray Brooks Registered User Atlanta GA Joined Mar 2001 59 Posts	The akaline batt have too much internal resistance and will not support the amp draw of the motor. Try the Rayovac Ultra NIMH from the Wal Mart camera department. I use two of these wired in series. Ray

May 01, 2001, 10:07 PM	#4
deadcell Registered User Enterprise, MS Joined Jan 2000 300 Posts	I had the same thing happen with mine. What is happening is that the motor current is drawing down the voltage level inside the battery and causing the low voltage cutoff in the esc to kick in. And when you land and take off again the battery has built back up just a little but not up to its former voltage level, ergo the reason for the shorter flights after the first time the motor cuts out. the easiest thing to do is go up a size in your batteries. I changed to 110ma and the problem went away. Thanks DC I forgot to mention that if you try to use the 9volt batteries with a motor that draws very many amps at all, the low voltage cutoff will kick in almost instantly and you won't ever get it to leave the ground. Alot of this is having to do with the size of your esc. Most micro esc's will only support 2 sub micro servos, anything any larger and the amp draw on the motor batteries is too high. [This message has been edited by deadcell (edited 05-01-2001).]