The Odyssey 925 has 380 CCA's which is a little stronger than the
Exreme. The advantage that the 925 has is it's deep cycle ability, which
the Extreme does not have as it is a starting battery. The Odyssey 925
is both a starting and a deep cycle combined, that's one of the reasons
it's so freaking expensive, but it's also an exceptionally high quality
product. True, it only has about half the reserve time of an Optima,
but it's also only about half the weight. I cant imagine adding almost fifty
pounds of unsprung weight under my seat, no thanks, but then again I
don't have all of the gadgets that some guys have added on that need
power.

What is the advantage of a deep cycle battery?

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'05 Ranger XP
'08 RZR born april 4
ITP SS112 rims, Super Grip '26 tires, '1 spacers, '2 rubberdown lift, rockslider nerf bars, UHMW custom skid,Viper 4500 winch, BTI snorkel box, Extreme snorkel kit, brush guards front n rear, lock n ride box and gas can holders, top, map bag, underdash bag, ext. fenders. front and rear cv/A arm guards high lifter springs{powder coated 'em red to match},lone star frame gussets,

Where do you get your info? Neither the Odyssey website or the East-Penn site describe either battery as a Deep Cycle or Starting battery. They both are the same type (ACM), have very similar CCA & amp-hour ratings, similar size and weight. When researching the topic online you find there is so much overlap in the construction of batteries that the labels "Deep Cycle" or "Starting" become meaningless. I haven't been able to locate a head-to-head test of these batteries. I'm a little surprised about that since this size is found in several ATV's, watercraft and many Harleys. Lot of very picky people with an interest in getting the best replacement possible. I did find a reference to a test conducted by a motorcycle magazine but I couldn't locate the original article. Here's the forum post:
There are lots of forums & magazines doing battery tests, some seem fair, some technically questionable. I'd like to see someone with the proper equipment do a head-to-head test of the Odyssey PC925, the East-Penn ETX30L (Deka, Magna Power, Big Crank and a bunch of rebranded autoparts store names), and Yuasa/Interstate YIX30L.

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Romeo, MI

So the Power Sports - ETX30L is the better battery for the price/performance?

Cold Cranking Amps 365 CCA
Ah Rate 26 Ah
Charge Rate 6.0 Amps

Dimensions:
Length 6 5/8"
Width 5 3/16"
Height 6 7/8"

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Thanks,
Will
2008 With Odyssey 925 Battery, SuperATV Storage Bags, Maier Scooped Hood and Racer Tech 2" RZR Lift Kit and a 2009 RZR 170
My 1953 Dodge M37
My Dodge Power Wagons

I wouldnt buy anything but an optima blue top marine battery have tried odyssey and optima both in the past including some off brands....you guys need to know what you are looking for in a battery for each application... You dont need cranking Power!!! you need reserve power its not a 7.3 diesel pickup starting in the middle of winter its a 800 cc fuel injected motor.... i have 2 red top optimas in my diesel and i have a optima blue top in my rzr red batteries have more cranking and less reserve and vice versa for the blue top.. (blue top and yellow top specs are the same except blue top has an extra set of battery studs with wingnuts.. and by the way there is no alternator on a rzr .. there is a stator.. big difference and by the way my battery does not weigh 50 lbs as stated earlier not sure where you are gettin your information.. and the 5 extra pounds shouldnt matter the guys wanting stereos and winches are more than likely not racing and that little weight will never effect them... i have hid headlights, 4000lb winch, mtx wakeboard tower speakers W/ an amp also (big difference than running off deck power) was just recently at an outdoor event not only was my stereo the loudest one there it was on and cranked for over 6 hours with the machine off... i am also running an isolator switch with my stock battery so it didnt matter if i ran it dead anyways....so once again in this situation a rzr needs reserve power not cranking power i dont care if the battery you buy has 2000 cca you will never be able to use the full potential anyway

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2008 red rzr

Custom roll cage w/factory utv doors. Custom paint with airbrushing.Optima battery w/ isolator,HID headlight conversion kit,RJS 4 point harnesses,+6'' long travel industries suspension, king shocks, rzr tech tie rod upgrade, Afe air filter, HPI clutch kit, two brothers exhaust. ITP 12'' wheels, GNC 27" tires, and the beat goes on......

oh by the way one more important thing i have ran a odyssy battery completely dead and had problems with it taking charge ever after that... you will never have that problem with a deep cycle blue top optima...

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2008 red rzr

Custom roll cage w/factory utv doors. Custom paint with airbrushing.Optima battery w/ isolator,HID headlight conversion kit,RJS 4 point harnesses,+6'' long travel industries suspension, king shocks, rzr tech tie rod upgrade, Afe air filter, HPI clutch kit, two brothers exhaust. ITP 12'' wheels, GNC 27" tires, and the beat goes on......

will the deep cycle blue top optima fit in in a gen 3 without having to cut?

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'05 Ranger XP
'08 RZR born april 4
ITP SS112 rims, Super Grip '26 tires, '1 spacers, '2 rubberdown lift, rockslider nerf bars, UHMW custom skid,Viper 4500 winch, BTI snorkel box, Extreme snorkel kit, brush guards front n rear, lock n ride box and gas can holders, top, map bag, underdash bag, ext. fenders. front and rear cv/A arm guards high lifter springs{powder coated 'em red to match},lone star frame gussets,

Where did you put the blue top if you kept the stock battery? Got Pictures? I think this is the way I want to go.

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2008 Red Rzr, Elka Shocks,BS Sand Extreme Seats, Crow Belts, Custom Overhead Console with Icom F221s radio, Avcomm intercom, Avcomm HO500 headsets, Lowrance XOG GPS,XM Radio, 4 HID lights, Two Brothers Exhaust.

I just wanted just a little more juice so i got the etx30l, $89 shipped to Miami, from Battery Giant. I have only a winch and don't want anything else. My 10/07 built rzr is used for deep woods trails most of the time. this etx30l fit like a glove in my rzr. I just have fab or buy a battery top hold down from an 2008 ranger to keep the battery from moving up.

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Sorry just broke digital camera otherwise would give pics... will post some soon... i bought a aftermarket battery box made for the rzr specifically for the optima installed that in stock battery location then i put my stock battery in storage box beside stock location and just fabricated a holding strap.. very simple and clean... remember a big key and advantage to my setup is the isolator switch... the switch makes it so when the key is off you just have power from the optima... so you can run stereo and whatever else you hook up to it with the key off. when key is on you have power from both batteries... allowing you to run optima dead (by accident... long drinking nights arpound campfire lead to this) and then be able to fire your machine right up using the stock battery... used this safety feature more than once already.... the 50 -$75 for the switch has already paid for itself in my situation

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2008 red rzr

Custom roll cage w/factory utv doors. Custom paint with airbrushing.Optima battery w/ isolator,HID headlight conversion kit,RJS 4 point harnesses,+6'' long travel industries suspension, king shocks, rzr tech tie rod upgrade, Afe air filter, HPI clutch kit, two brothers exhaust. ITP 12'' wheels, GNC 27" tires, and the beat goes on......

battery box is made by rpm products or something got it off ebay there is several mentions about the box on the forums..... and yes you have to trim plastic to fit the optima... couldnt even tell it has been done unless you seen it before... it took me all of 15 seconds to do with my mini air saw... i am a pefectioist when it comes to wiring and details and very picky and i was very pleased with how it turned out..... anyone that will be at the black hills utv rally this weekend is happy to check it out ... will be sportin new cage, bumpers and paint job also

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2008 red rzr

Custom roll cage w/factory utv doors. Custom paint with airbrushing.Optima battery w/ isolator,HID headlight conversion kit,RJS 4 point harnesses,+6'' long travel industries suspension, king shocks, rzr tech tie rod upgrade, Afe air filter, HPI clutch kit, two brothers exhaust. ITP 12'' wheels, GNC 27" tires, and the beat goes on......

Ok, how about some pics on the odyssy install and a list of everything needed.

Sorry, was missing page 2.

This is great stuff ... Thankx!!

k...going with the blue...is there a model number or something?

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'05 Ranger XP
'08 RZR born april 4
ITP SS112 rims, Super Grip '26 tires, '1 spacers, '2 rubberdown lift, rockslider nerf bars, UHMW custom skid,Viper 4500 winch, BTI snorkel box, Extreme snorkel kit, brush guards front n rear, lock n ride box and gas can holders, top, map bag, underdash bag, ext. fenders. front and rear cv/A arm guards high lifter springs{powder coated 'em red to match},lone star frame gussets,

Guys, Odyssey batteries are generally pretty good buys. I've had good experience with them. Reliability, &tc.

I like to get my Odyssey batteries here. They have good prices at Battery Tex - Your Source for Batteries. And for other stuff in my limited experience.

-Trib