minimum battery amp hours - Chicagoland Sportbikes
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post #1 of 5 (permalink) Old 06-03-2015, 11:40 AM Thread Starter
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minimum battery amp hours

i have a 1982 yamaha xs650, heavily modded, kickstart only. it came with a tiny battery the size of a deck of cards. you turn the bike on to start it, and this battery has just enough juice power it up to start. in theory. in reality i think it's not quite enough. i've always had difficulty kicking it over, but if i jump it, it starts right up.

i don't have space with the current configuration for a typical battery, which is why the previous owner used this one, which fits in a hollow under the seat. the battery is rated at 12 volts/0.8 amp hours.

two questions.

1 - i'm wondering if anyone knows of similar small battery that would work in this application.
2 - can anyone recommend a minimum amp hour rating? would a higher rating solve my starting problem.

any help would be hugely appreciated.

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post #2 of 5 (permalink) Old 06-03-2015, 05:49 PM
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Your only choice might be a Shorai battery or the like .


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post #3 of 5 (permalink) Old 06-04-2015, 10:37 PM
let's find some twisty's
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post #4 of 5 (permalink) Old 06-05-2015, 11:22 AM
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3 cell lithium battery packs for RC cars/planes will have the same voltage with much greater amp capacity.

CCS AM #31
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post #5 of 5 (permalink) Old 06-26-2015, 10:24 AM
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I found a 6 amp hour 12 volt battery at Batteries plus for 35 bucks. It's for a fire alarm panel. It works for the 74 RD350. Small thing to. Sealed

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