Battery question for the experts

[Bob Rooks]

I've installed the QuadLogic battery relocator kit for bigger battery on my '16 Polaris Sportsman 450HO and would like to know what the "bigger" battery size is. Has anyone done this? I'd like to go with a SLA/AGM battery with more power than the OEM battery. Maximum battery size that will fit is 6-7/8" long x 3-3/8" wide x 7" tall. I can't find a battery that size.

Amazon.com: Polaris 2014-20 Sportsman 450 570 Larger Battery Relocate Kit (Bigger Battery) : Automotive

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[Bob Rooks]

Well I guess either there are no experts out there or no one has tried this. So here is the answer for any interested parties - it's a group 20 size that is the "larger" maximum battery size that will fit this application. Instead of going the SLA/AGM route I opted to try the NOCO lithium battery. The specs led me to believe this is too good to be true, so we'll see.

 

[Roadworthy]

I know nothing about your conversion. I do know lithium batteries don't necessarily use the same charger as lead acid batteries. Find out if yours takes added electronics in your charging circuit or if the circuitry is built into the battery. There are some advantages to a lithium battery as well as disadvantages. They can be a REAL fire hazard if not handled properly.

 

[thepumpguysc]

The key to longevity with any battery is the tiedown..
If they are bouncing around, they aren’t going to last, period..
& that’s the extent of my knowledge on batteries..lol

 

[Bob Rooks]

I know nothing about your conversion. I do know lithium batteries don't necessarily use the same charger as lead acid batteries. Find out if yours takes added electronics in your charging circuit or if the circuitry is built into the battery. There are some advantages to a lithium battery as well as disadvantages. They can be a REAL fire hazard if not handled properly.

I've done a little homework on this. Yes, they do take a special lithium charger for quick charges but they are 100% compatible with regular vehicle charging systems. It has built in battery management circuitry with cell balancing, something that isn't in SLA/AGM/flooded cell batteries. It weighs just slightly more than five pounds. The mod takes the battery from under the engine to inside the left rear fender, up out of the way and easy to get to. The kit allows for the much larger group 20 size battery of any type. This battery boasts 600 amps of starting power, but I don't know how fast that drops off. Lithium batteries aren't rated with CCa's. They are also rated as a class B fire, so my compact ABC fire extinguisher is good. But as I alluded to, the jury is still out.

https://www.amazon.com/dp/B091P96DDB?psc=1&ref=ppx_yo2_dt_b_product_details

 

[Bob Rooks]

The key to longevity with any battery is the tiedown..
If they are bouncing around, they aren’t going to last, period..
& that’s the extent of my knowledge on batteries..lol

Agreed. It will be cushioned with high density closed cell foam. It only weighs a little over five pounds. Very light for a battery.

 

[oosik]

I considered a Lithium battery when I upgraded on my Kubota M6040. It takes a group 31. I went with an Odyssey AGM - that was big enough( 1150 CCA). This AGM was quite expensive - Lithium was even more. Last thing I need out here is an exploding battery and fire.

 

[5030]

I can buy a helluva lot of flooded cell replacement jars for the cost of one fancy battery.

Makes no economic sense to me.

 

[jaydee325]

I considered a Lithium battery when I upgraded on my Kubota M6040. It takes a group 31. I went with an Odyssey AGM - that was big enough( 1150 CCA). This AGM was quite expensive - Lithium was even more. Last thing I need out here is an exploding battery and fire.

There are two types of "lithium" batteries. Lithium Ion, such as used in small battery powered appliances (phones for example) and Lithium Iron Phosphate (LiFePo4) such as the OP installed as a starting battery.

Vastly different chemistry involved. LiFePo4 batteries are no more dangerous or susceptible to exploding than common flooded cell lead acid batteries.

 

[Bob Rooks]

I can buy a helluva lot of flooded cell replacement jars for the cost of one fancy battery.

Makes no economic sense to me.

I'm wagering that if it has a five year replacement warranty it should outlive me. Besides, who wants to keep buying a helluva lot of batteries?