Is it ok to remove the battery from the bike for some time so I can take it with me shopping for a new one?
Yep. :thumbup:
Little trick to that tho. When you are down there trying to get it out, there's a little lip at the front of the tray that you need to lift it up onto before it'll start to slide forward & out. You hafta tilt the battery juuust a little as you lift it maybe 1/2 an inch to slide it out. :2thumbs:
Oh, and when you put the new one back, check to make sure that:
- The terminals are clean & tightly connected - ideally, with star washers in there to ensure a good connection that won't work loose over time/vibrations;
- You don't push the battery back onto one of the dangling cables, they can fall down between the back plate & the battery as you slide it in, making it impossible to push it in far enough to secure;
- You need to keep the movement of the cables to a minimum, cos moving them around too much can loosen the 'other end' of the cables, making for a less than adequate connection resulting in poor charging &/or DPS (electric Dynamic Power Steering) issues or more! BRP usually put SO MUCH yellow Locktite goop onto bolts/screws everywhere, but somehow, still the bloody earth to frame connection deep behind the battery & alongside the DPS can come loose if you move those cables around enough!! So go on, ask me how I know this bleedin' well happens, and as a result the battery can get a 'less than adequate' charge &/or the DPS can start acting up at the worst time possible, making you think that VERY expensive part has failed! :banghead:
Good Luck! :cheers:
Ps: Getting a battery with
LESS than 350 CCA can be a real issue, so if Walmart don't specify that somewhere on/for theirs & can't tell you, then it might be better to go elsewhere to get a new battery! :banghead: It won't hurt if you get a higher than 350 CCA battery, just so long as it fits in the hole (check that the metal strap that goes over the top will fit too, or that you can flatten out a tab or two on it to make it fit! Maybe take that metal strap with you, but
DON'T lose it! 
) In fact, it might be better for you in the long run to get a slightly higher CCA battery (I think my current battery is 480 CCA or something higher?! :dontknow: ); but you do
need to make sure that whatever it is,
YOU need to ensure that any new battery you install gets a good 8 hours of charge on a battery charger/maintainer (Smart Charger)
BEFORE you install it; and unless you
seriously trust the retailer to have done that for you (did they make you wait 8+ hours before picking it up?!

) then don't believe them if/when they say you don't need to do that - all that does is bring them more business sooner than really necessary.... Sometimes,
MUCH sooner! :lecturef_smilie: