I just purchased a satio 120 for my cap and i would like to know what size battery i will need to stary this. I tried my 12 volt 18 amp battery but that would not do the job any ideas.

do you mean starter??

if yes, I use a Dynatron on larger engines, works well... but I'm not sure exactly what you are asking

what starter are you using.?are you connected tru a power panel with bananna jacks?you may find that your battery and starter are enough if you wire the starter direct to the battery,you won't lose any current thru the banna plugs or alligator clips.

I have the 180 starter i connected right on my 12 volt 18 amp gel cell battery and the battery wolud not turn it over

need a better starter.... I had that one and it had a tough time with my little 1.00!

Switched the Sullivan Dynatron and never looked back


http://www2.towerhobbies.com/cgi-bin...&I=LXFT88&P=ML

I use a Kavan starter on 18 volts, 7 amp batteries, and it will spin my Saito 180 with no problem. I do have to keep them charged well though.

What about just using a car battery won't that turn the 120 satio

its not the battery.....it is the starter....

I turn My Dynatron on a 7A hobby battery and it spins engines that size no problem..

i used the same starter to start my 25cc gas motor as i did my 45 size supertiger i dont imagine any difference that you would need a bigger starter unless you just have a weak batter or the motor in the starter is going bad.

how old is the gell cell?as with everthing they do lose capacity with age just like motors draw more amps as they age,could be a combination of both but try hooking it to your car battery and see if it will turn the engine if it does could be the gel cell.have you checked the voltage under load?some times a battery will lose a cell and will read 12 volts no load but show 10 volts when load is applied.