Question about 2005 Suzuki Boulevard S40

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Charging the battery

Unable to find my owners manual for a Suzuki Boulevard S40. How do I charge the battery. Already have a trickle charger ready.

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Turn off ignition. Disconnect battery terminal leads, ensure fluid levels are ok, connect charger leads. It is best if you remove battery so you can give it a clean and save your bike if something is amiss somewhere and it erupts or leaks when charging. Try the sites below for manuals or go to Wiki Q & A under S40 Boulevard, then wade thru' for links.

Posted on May 27, 2010


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Posted on Jan 02, 2017


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How to charge or replace battery on a 2009 Suzuki S40 Boulevard?

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Apr 22, 2014 | 2009 Suzuki Boulevard S40

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Boulevard C90 Having trouble w/keeping battery charged.

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Charging a battery in a Suzuki Boulevard S40. Where is it and how do you get to it.

It is behind the cover (side opposite toolbox) underneath the carby/airbox manifold. It is then wrapped in a rubber/plastic cradle. Cheers.

May 26, 2010 | 2005 Suzuki Boulevard S40

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How do I get to the battery? can I charge it with jumper cables from a car?

Both previous posts are correct. The battery is located under the rider seat. You need to charge it at a low amperage, 1.5 or 2 amps. It will take a while so be patient. Quick charging is bad on the battery. The best bet is to buy a trickle charger such as a Battery Tender and plug it in often. It will keep your battery at its peak. The more your battery drais or receives quick charges, the faster you will have to buy a new battery.

Oct 20, 2009 | 2005 Suzuki Boulevard C50

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How do I charge the battery? I don't have a manual. Thanks!

like he said its just like a car if you cant find it look under the drivers seat and or under the panels under the seat

Apr 16, 2009 | 2005 Suzuki Boulevard S40

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Cannot find the battery location

I have the same bike that you do. To get at the battery you need to remove both the seat (2 bolts, 1 screw (at back)), AND also remove the tool kit housing. The battery sits behind the tool kit, and so to slide it out you need to remove both halves (front and back) of the tool kit housing. You have to take the seat off in order to get at one of the screws holding one of the battery terminals in place.

When I do this, I find the hardest parts to be to get at the screw attached to the battery on the side of the bike opposite the tool kit; not such an easy fit. The other part I find hard for some reason is getting the tool pack to fit back into the tool kit housing once you reattach it to the bike.

I am seriously thinking about attaching a "pigtail connector" to the battery for easy charging during the winter. I understand that most trickle chargers come with this kind of accessory.

Mar 16, 2009 | 2005 Suzuki Boulevard S40

1 Answer


i am in the process right now, and am having difficulty. the battery that was purchased does not fit properly; vent tube side would face belt side if terminals are aligned. to access removal of old battery, though, i took of the side panel, removed/unscrewed where owner's manual/tools sit. then, just disconneted bolts from terminals and slid it out.

Nov 10, 2008 | 2005 Suzuki Boulevard S40

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