jack Posted February 2, 2010 Share Posted February 2, 2010 Hi folks, Wondering if anyone could advise me on starter battery options. I currently (excuse pun) have a 12v 3Ah Lead motorcycle battery weighing just under 1.5 Kg. This does not always start from cold, also I don't have in flight charging. I have been needing to jump start with a car battery which I would think is not good for the starter motor? - 500+ cranking amps?? The starter motor is 12v 0.25kw so I assume it draws 20 amps? Anyway I guess I could get a bigger motorcycle battery eg 12v 8Ah although this is bigger to fit and nearer 3kg. The engine manufactures recommends 12v 7.5Ah although again this is fairly heafty! Is it possible to use a 14.4v drill battery for example lithium ion or ni cad???? I clearly don't know anything about these things so any suggestions / experiences for a lighter battery option is greatly appreciated. Many thanks Jack Quote Link to comment Share on other sites More sharing options...
bignos Posted February 3, 2010 Share Posted February 3, 2010 these cyclon batteries are light and powerful (the military use them) http://www.budgetbatteries.co.uk/batter ... batteries/ Quote Link to comment Share on other sites More sharing options...
garyfreefly Posted February 3, 2010 Share Posted February 3, 2010 Just get a pull start and forget about any sort of battery....... Quote Link to comment Share on other sites More sharing options...
outkast Posted February 3, 2010 Share Posted February 3, 2010 I was the same as you and had a large heavy motorcycle battery on my pap, I have recently purchased a Li-Po conversion kit, the battery is a lot smaller and lighter, I have yet to check how well it starts my motor. Quote Link to comment Share on other sites More sharing options...
Phil_P Posted February 5, 2010 Share Posted February 5, 2010 If I was going to fit a battery that wasn't in flight charged, it would be one of these- http://www.ebattonline.com/thefacts.html Quote Link to comment Share on other sites More sharing options...
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