Which lipo for driving a starter?
What C rating and mah do I need to drive the starter?
Thanks
Steve
I use a 25c 1350mah on my hobbico starter! I dont fly big airplanes only 40 and 60 size so the starter works perfect for me.
I'm using a 4 cell 30c 3300mAh flitepower lipo.
My largest glow engine is a 4 stroke 120 OS.
I charge it once a Month,
Bob
Hi!
14,8V, 2200mAh Lipo!
If so I'd worry about the cord getting caught in the prop?
steve
I'd like to get a weekend out of it? probably 10 - 20 starts.....
steve
http://www.hobbypartz.com/83p-4000mah-4s1p-148-20c.html
Pretty cheap for the power it puts to the starter. I can start my 40cc Zenoah with it!
Just be cautious...Ive burned starters out on gas engines using a 4s by holding the button too long. Smoked it! lol
But that was my own fault. The engine wouldnt start and I kept on and on and on...then the magic smoke left from the starter?!?!?!?! lol
Interesting, is that a glow driver attached to the same battery?
If so I'd worry about the cord getting caught in the prop?
steve
LiPo will burn out your glow plug instantly.
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I use a cheap 12c 4000mAh 14.8v LiPo pack with my Hobbico starters.
With a larger cone the starter can turn over 1.20-1.60 glow engines w/o problems.
If I switch to 18v packs I have no problems starting 50cc gas engines.
I charge my pack once or twice a MONTH during the heaviest part of the flying season.
Jose, that must take at least a couple hours to recharge??
CGr.
http://www.harborfreight.com/automot...ply-38391.html
This will start anything!!
CGr
it lasts at least a month (id guess around 250 starts) turning 40-90 sized engines
LiPo batteries are pretty cool, so are NiMh.
But the problem is: You don't always have to go Hi Tech to perform a simple task.
Running a Starter is a simple task and its failure would not cost you hundreds of dollars or hundreds of hours of building time. Such as a battery failure of the receiver or electronic ignition system.<o></o>
So why not keep is simple and keep it inexpensive?<o></o>
<o></o>
Here is an idea: How about any Rechargeable Sealed Battery. <o></o>
Probably one that is in your workshop right now?<o></o>
How about the Battery Pack from your portable electric drill – saw – flashlight.<o></o>
And think about it … You Do Not have to buy a battery charger. And some of the chargers are FANCY <o></o>
With Check lights – Charge lights and Cycle completion lights.<o></o>
<o></o>
Or if one is insistent on spending money – Go to a catalog such as McMaster or Granger and find a <o></o>
Gel Cell that fits the size requirement for your operation.<o></o>
Size being BOTH physical and electrical.<o></o>
<o></o>
Oh, LiPo battery sizes… Or any battery rated in mAH:<o></o>
m = mili - - meaning one thousandth’s of a whole ie: 1000 mA = 1 Amp. 1 mA is 1/1000<sup>th</sup> of an Amp.<o></o>
AH = Amp Hour = How many Amps a battery can deliver for an Hour. Example: a 100 AH battery is rated at 1 Amp for 100 hours or 100 Amps for 1 Hour. NOW! Don’t yell at me… I don’t believe it either, but that is what the AH and rating system says.<o></o>
<o></o>
So, a 2000 mAH LiPo is ONLY – ONLY – a 2 AH battery. The cheapest Tractor Battery or Motorcycle Battery or Drill Battery is WAY OVER 2AH (2000 mAH).<o></o>
Just read the writing on the <st1lace w:st="on">Battery</st1lace>.<o></o>
<o></o>
Barry<o></o>
It spins the engine with ease.
3S works fine as long as the batt can provide sufficient current to the starter without voltage drop.
just my opinion!!!
Scotty
I have a cellpro multi4 which will charge them...
steve
What about A123 batteries? is anyone using them on the starter???
I have a cellpro multi4 which will charge them...
steve
I have a cheap Hobbico Torquemaster 180 starter. After studying this thread I took it out of storage and tried it with a 5000 6 cell lipo. Oh my god was it wicked! I then scaled back to a Hobbyking 3000 4 cell nano tech. Worked great on my MLD28 engines. The photos are the finished product. A starter, small piece of plywood, 4 4/40 blind nuts, bolts, washers and cheap Hobbyking connectors.
Very light and very strong. Blew everything off the workbench when I tested it. Started the engine great even at 40 degrees!
Thanks guys.