Smoke pump battery

[Skyluc]

I am going to put a sullivan skywriter smoke pump in my new krill extra 35%,this will be my first smoke pump,and I am asking myself wich capacity is needed to power it,usually I do 6 twelve minutes flights in a flight session with my 35%

 

[Bipeguy03]

If you need a little nose weight, a 2000 mAh NiMh will run it all day. I've also ran a 2600 Fromeco Lion. But really a 500 mAh will give you about 30-40 minutes of smoke time.

 

[thepamster]

I have two Sullivans and run a 2S 750ma Lipo in both. I only usually fly about 4 flights of around 10 minutes each and have plenty of power left for more.

 

[ChickenBalls]

I'm running a 6V 2000 nimh on my sullivan. I could probably go 2 or 3 weekends without charging.

 

[Bipeguy03]

I'm running a 6V 2000 nimh on my sullivan. I could probably go 2 or 3 weekends without charging.

That's what I used on my PAU/BME Ultimate, I needed the nose weight. I have a Lion on my Pitts for the opposite reason lol

 

[ChickenBalls]

That's what I used on my PAU/BME Ultimate, I needed the nose weight. I have a Lion on my Pitts for the opposite reason lol

It's just what I had on shelf, I may switch over to a 2s when it's time to replace. I know one fella who actually runs his smoke pump off his ignition battery.

 

[thepamster]

It's just what I had on shelf, I may switch over to a 2s when it's time to replace. I know one fella who actually runs his smoke pump off his ignition battery.

Nothing wrong with that I guess as smoke pumps don't draw that much current really. However, I would hate to have something go wrong with the smoke pump and suddenly have no ignition.
A 2S Lipo weighs almost nothing as far as big planes go so that's why I use them.

 

[ChickenBalls]

Nothing wrong with that I guess as smoke pumps don't draw that much current really. However, I would hate to have something go wrong with the smoke pump and suddenly have no ignition.
A 2S Lipo weighs almost nothing as far as big planes go so that's why I use them.

I totally agree, thats why I went with designated smoke battery. I'll have to get battery out of canister tunnel, and move it up top if I go 2s, but probably will do that, once ready to replace. I'm moving away from nihm as much as possible, just use em for ignition only.

 

[thepamster]

Yep, I got out of the Nimh business last year as far as flight packs go. The only one left is in my 14SG. I will likely go Life (A123) next year.

 

[sweetpea]

More important than capacity is voltage. Sullivan Skywriter pumps prefer over 6vs. A LION 7.4v pack is perfect. If the voltage is too low the pump runs like crap at slower settings (when mixed to throttle at idle). The pump will handle 12v as well.