11hp battery

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Bluethunder3320

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i dont think either of those are enough. maybe there is an amperage rating for the starter in the manual.

sealed lead acid batteries are generally not used for engine starters, because starters are only used for a very short time and draw a crapload of power. the wet cell batteries like ones in cars are for starter motors because they can supply the massive demand for power. sealed lead acid batteries are used in things like electric scooters, because the motor doesnt need a ton of power, but it has to last 10 minutes straight at least.
 

anderkart

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I agree with blue's ^^^ first sentence, but the fact that a lead-acid battery happens to be a sealed or non-sealed design doesn't alter if its more/less appropriate for starting or deep-cycle type use. Some batteries are indeed designed, labeled and marketed for use in Deep Cycle applications, but I'm not seeing any info claiming that's the case in the 2 Norther Batteries you linked above. So Blue is wrong here...

Your 11hp engine needs a 12 volt battery with a minimum of an 18/AH (amp-hour) rating.
Norther offers this model:--> http://www.northerntool.com/shop/tools/product_200390369_200390369 that would have enough power to start your engine just fine.

Your engine is a copy/clone of a Honda GX340 model. Here's a link to the Honda GX340 manual with the electric start/battery requirement info:--> http://engines.honda.com/pdf/manuals/37Z5F602.pdf
 

karl

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Yea that battery is 5 amps and my lawn mower battery has 400amps to crank a 10hp motor. That battery may give 1 crank
 

redsox985

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What about one of those pocket sized lithium motorcycle batteries? They are like the size of a deck of cards.
 
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