Lithium ion Battery...please read

My 2017 needed a battery Oct 2022!
I chose Power Source WPX20-BX, 18 Ah, 375 CA, for $105 on Amazon! If I remember correctly it weighs 1.5 lbs more than the original, but had more CA then stock battery! Also put a Yuasa on the 2012 Vector 2024, 18.9 Ah 270CCA, again Amazon $101, cheap money for a good AGM snowmobile battery! I looked in to the Lithium more expensive and much lighter battery, but decided at this price, I'll just change them again in 5 more years, give or take! There's no room in my garage for sled storage with maintenance charge on them for that long period, so they stay in my enclosed trailer away from rodents, and I start them every 3 months and give them a charge during my pre season Oct-Nov maintenance!!
 
KnappAttack said:
Makes sense. If you can't or don't want to warm up the lithium, then get a AGM. I prefer to take off the 10-12 lbs myself and warming them up isn't a big deal.

They are however using scare tactics that your sled might not start, which I have not had happen with a lithium, and 1200 Doos turn over much harder than 998's, so myself I have no concerns. My bigger concern is the EPS not firing up right away, but I know it will even if you have to stop and re-start, it always fires the EPS up then after being run for a bit, even if it doesn't, it still works as a non-EPS machine which is annoying at best.

People can do whatever suits them best, but taking off 10-12 lbs does't come any easier, other than reducing fuel load, and good luck with that if going the distance.
Click to expand...
What pads are guys using?
 
Turboflash said:
What pads are guys using?
Click to expand...

Pads? Heating pads? I don't use them, but see someone (Doc) is here on his photos earlier. I was going to use handlebar heaters on my old 1200 many years ago, but found there is easier and better ways to put a load on the battery. It's not that big of a thing that you need to add a heater, just one way to put a draw on the battery before turning the engine over is all. IMO there are better ways to go about putting a draw on the battery than adding complexity when you think about it, but I think outside of the box more than some others too. LOL!
 
I just don't see these pads being effective as they are going to dissipate heat quickly rather then warm the center of the battery and it will take a long time with a slow drain on the battery. I'm all for heat pads and used them many times, but I just don't see the benefit in this case. I think if there is any concerns the posts can have wing nuts on them to disconnect quickly and bring them inside for the night. Guys that want this to work should figure on using twice the output power because these pads dissipate heat quickly near zero degrees Fahrenheit. jmho
 
I will ad, and I say that with no disrespect for the guys using/wanting to go this route. The way I see it is the pads may slightly warm the case but there is a big air space between the case and the cells not to mention the pc board in there for the BMS.
 
fatchance said:
I will ad, and I say that with no disrespect for the guys using/wanting to go this route. The way I see it is the pads may slightly warm the case but there is a big air space between the case and the cells not to mention the pc board in there for the BMS.
Click to expand...
I tend to agree, but I see the insulating blankets on most vehicles lead acid or agm batteries these days.
 
Turboflash said:
Much appreciated. How long do they need to be on (say at -10F) to make a difference?
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Haven’t had a chance to play around with them much. In my garage 40f let them run for 20 minutes they felt luke warm. I think the best approach if yr running lithium battery is to take it out and bring it inside if your in extreme conditions. Or as others have said turn the kill switch off and crank the engine to wake the battery up.
 
REDLINE 1 said:
Haven’t had a chance to play around with them much. In my garage 40f let them run for 20 minutes they felt luke warm. I think the best approach if yr running lithium battery is to take it out and bring it inside if your in extreme conditions. Or as others have said turn the kill switch off and crank the engine to wake the battery up.
Click to expand...
I'm Not unhooking my battery to take it inside! What a PIA that would be on -20 nights.
Last week was my first trip with my new Shorai LFM24A3-BS12 fully charged on my new NOCO Genius 10 charger.
Several nights it was close to -10. At first crank, it seemed there would be no way this battery was going to start my sled. But after about 4-5 crank cycles, the battery was getting stronger and stronger with each one. On about 5-6th crank cycle the engine lit up. Charging voltage was normal at about 14.4. I like the 10 lb weight savings from lithium battery but not sure it will start my sled at -20 to -25.
 
My thoughts on cold slow cranking batteries, hard on starter selonoid, starter itself and stator having to supply the needed juice not to mention oil pump not spinning fast enough to supply oil to critical spinning parts...just my thoughts!
 
Turboflash said:
I'm Not unhooking my battery to take it inside! What a PIA that would be on -20 nights.
Last week was my first trip with my new Shorai LFM24A3-BS12 fully charged on my new NOCO Genius 10 charger.
Several nights it was close to -10. At first crank, it seemed there would be no way this battery was going to start my sled. But after about 4-5 crank cycles, the battery was getting stronger and stronger with each one. On about 5-6th crank cycle the engine lit up. Charging voltage was normal at about 14.4. I like the 10 lb weight savings from lithium battery but not sure it will start my sled at -20 to -25.
Click to expand...
It is a bit of an inconvenience but it only takes me 5min to get my battery out so no big deal for me. Plus my sled is rarely outside overnight. Most times it’s in a garage overnight
My shorai was pretty good as well the first season. It’s now 3 1/2 years old and doesn’t have the cold crank punch it had when new even with the wake-up procedure
 
I still ride when it’s cold so AGM for me. I towed out to Lac Du Bonnet and it was -36C. That engine block was pretty cold by the time I got there. Even a new agm turned over pretty slow!
 
During the discharge process the cells of the battery are warming up/waking up, so no need to warm them up. Right?!?!
It's-15°F outside, which the battery exterior would be of similar temps.
So adding an insulated heater that climbs to 30°F wouldn't help?!?!
Just one question...explain to me how it would hurt? Heater draws .5amps.
I thought this group was about trying new things, problem solving, sharing ideas & results.
Being shot down by an arm chair quarterback doesn't make much sense either.
 
Doc Harley said:
During the discharge process the cells of the battery are warming up/waking up, so no need to warm them up. Right?!?!
It's-15°F outside, which the battery exterior would be of similar temps.
So adding an insulated heater that climbs to 30°F wouldn't help?!?!
Just one question...explain to me how it would hurt? Heater draws .5amps.
I thought this group was about trying new things, problem solving, sharing ideas & results.
Being shot down by an arm chair quarterback doesn't make much sense either.
Click to expand...

I don't think it would hurt one bit. It's one way to put a draw on the battery and warms the case as well as the draw warms the interior, seems like a win win to me. I like it, but have other ways to put a draw on the battery myself so don't feel the need to add a heater. All the battery need to wake up is a draw or I would imagine a charge on it possibly too, anything to get current running thru it, does't matter how it happens.

You ought to have that project completed by now Doc, how's it work for ya?
 
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