[joe r]

Do you have enough room to fit a 24F battery?

 

[boureesub]

I remember someone else used a 24F. I think in a 2019. It was not a drop in replacement. The interstate 24F is 10 15/16” long while the group 35 is 9 1/16”. You’d need a different battery tray for starters. Height and width are similar.

 

[huja]

Another vote for Costco. I had one battery lose juice after three years and it was suppose to be pro-rated warranty but Costco simply gave me a new battery gratis.

 

[Natedog]

@Makdaddy , 2019 and on have stop/start systems that need EFB or AGM batteries. I've used Durlast Gold as well, but they won't cut it for cars with star/stop. Too much cycling.
Here are three high end AGM replacements.

Odyssey Extreme
65 AH
850 CCA
130 Minute Reserve
4yr warranty
50lbs
35-PC1400 | ODYSSEY® Battery

Northstar Pro
60 AH
740 CCA
115 Minute Reserve
4 yr warranty
49 lbs
NSB-AGM35

X2 Power (rebranded Northstar Pro?)
60 AH
740 CCA
115 minute reserve
5 yr warranty
45.6 lbs
X2Power Premium AGM Battery for 2019 Subaru Forester H4 2.5L 390CCA Car and Truck - SLI35AGMDP at Batteries Plus Bulbs
[/QUOTE]

Great info, I replaced the way undersized stock lead/acid battery in my 2015 while it was still good, it had left me stranded with dead battery twice! I bought the Odyssey couple years agao and am very happy with it so far, knock on wood lol.

 

[rocketjones]

IMO you should consider a LiFePO4. What does it do better than AGM? Everything. Faster charging, lighter, maintenance free, higher operating temperature, they don't vent gas, explode or burn.
I'm running a 60ah in my SH. Last week I left a map light on overnight. I turned the key to acc in the morning and let my AP fire up. I got a reading of 14v.

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[FelineFreddie]

Just a clarification... I’m not knocking the quality of the specified battery, but there are 2 things onem May wish want to consider, or at a minimum investigate.

1- This battery appears from its description to be a “deep cycle” construction battery, and historically deep cycle battery’s don’t do well in the long term in a rapid discharge/charge environment, such as ignition sources for vehicles. They’re much better suited for things like boat trolling motors, electric cars and electric golf carts, camping power sources for lights, etc. Of course, this battery construction style may be different, so investigate before buying.

2- This battery is of lithium-ion design, and yes, it definitely has the capacity to overheat, burn and explode.

Defective lithium batteries have caused issues in Boeing 787 aircraft and some battery powered cars, as well as a host of electronics... laptops, vaping devices, cellphones, etc.

Overall, however, they are usually very safe if manufactured to high specifications under good Q/C.

 

[bman400]

At nearly triple the cost of an AGM battery, sorry but don't see the cost justification for buying such a battery. If I lived up north I would not pay the extra for an AGM and just buy a regular flooded cell battery. But I live in TX and AGM out last the flooded ones. But triple the cost of an AGM? No thank you.

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[rocketjones]

Meh, they cost about the same.

https://m.aliexpress.com/item/33027912773.html?spm=a2g0n.search-amp.list.33027912773&aff_trace_key=&aff_platform=msite&m_page_id=3266amp-rE83Hr3UBIsyUmQppuId6Q1599407734987&browser_id=0ef620d6d2d141848d10212ad5a52fae&is_c=Y

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[bman400]

Would not trust that at all. As others have posted, where is the quality control to prevent fire and explosion. But hey it's your life and your car!

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[rocketjones]

Just a clarification... I’m not knocking the quality of the specified battery, but there are 2 things onem May wish want to consider, or at a minimum investigate.

1- This battery appears from its description to be a “deep cycle” construction battery, and historically deep cycle battery’s don’t do well in the long term in a rapid discharge/charge environment, such as ignition sources for vehicles. They’re much better suited for things like boat trolling motors, electric cars and electric golf carts, camping power sources for lights, etc. Of course, this battery construction style may be different, so investigate before buying.

2- This battery is of lithium-ion design, and yes, it definitely has the capacity to overheat, burn and explode.

Defective lithium batteries have caused issues in Boeing 787 aircraft and some battery powered cars, as well as a host of electronics... laptops, vaping devices, cellphones, etc.

Overall, however, they are usually very safe if manufactured to high specifications under good Q/C.

Everything has the capacity to burn if you apply enough heat. AGM has the advantage in freezing temperatures. I live in Phoenix. Also, LiFePO4 can withstand deeper dod to around 10% and still put out max voltage.

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[rocketjones]

Would not trust that at all. As others have posted, where is the quality control to prevent fire and explosion. But hey it's your life and your car!

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Lol! I trust it with all of the 400 torque going to the wheels daily! Hasn't let me down yet!

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[boureesub]

There are many different Li ion battery chemistries. The LiFePo4 (Lithium Iron Phosphate) chemistries are not prone to thermal runaway and aren’t the same chemistry as used by the infamous Boeing Dreamliner Battery (Lithium cobalt).

@rocketjones , how do you address charging in below freezing conditions?

 

[rocketjones]

Honestly I haven't found any reviews or conjecture regarding temperature below zero specific to LiFePO4. I understand lithium batteries tend to require output to generate heat. Like turn on your headlights for 3-5 minutes.

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[rocketjones]

@boureesub also, you can hard wire a charger. If you have a garage or an extension chord.

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[boureesub]

I’ll answer my own question about charging your battery when it’s below freezing... You don’t. It must be above freezing before charging. I thought you might have put some kind of countermeasure, but it sounds like you’re unaware and must live in a warm climate.

I don’t think this is a sensible plug ‘n play replacement for many of us.

 

[rocketjones]

I’ll answer my own question about charging your battery when it’s below freezing... You don’t. It must be above freezing before charging. I thought you might have put some kind of countermeasure, but it sounds like you’re unaware and must live in a warm climate.

I don’t think this is a sensible plug ‘n play replacement for many of us.

So you are being facetious. I hope you find what you're looking for.

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[FelineFreddie]

There are many different Li ion battery chemistries. The LiFePo4 (Lithium Iron Phosphate) chemistries are not prone to thermal runaway and aren’t the same chemistry as used by the infamous Boeing Dreamliner Battery (Lithium cobalt).

@rocketjones , how do you address charging in below freezing conditions?

Is that the same Dreamliner that Boeng had battery thermal runaway events with soon after going into to service?

Not trying to be cute... perhaps they changed the battery composition...or something else. I do know Boeing made some considerable changes to the battery enclosures after 2 separate events, and if they ever actually identified exactly what caused them, I don’t recall hearing about it.

Not dissing either the battery or the Dreamliner, I just never heard exactly what the resolution ended up being...

I‘m also anti-lithium battery, but not manufactured correctly, they can be quite dangerous in some situations...

 

[FelineFreddie]

Is that the same Dreamliner that Boeng had battery thermal runaway events with soon after going into to service?

Not trying to be cute... perhaps they changed the battery composition...or something else. I do know Boeing made some considerable changes to the battery enclosures after 2 separate events, and if they ever actually identified exactly what caused them, I don’t recall hearing about it.

Not dissing either the battery or the Dreamliner, I just never heard exactly what the resolution ended up being...

I‘m also anti-lithium battery, but not manufactured correctly, they can be quite dangerous in some situations...

Oops... should have posted I’m NOT anti-lithium battery... left out 5the “NOT”...

 

[ForesterBill]

Meh, they cost about the same.

https://m.aliexpress.com/item/33027912773.html?spm=a2g0n.search-amp.list.33027912773&aff_trace_key=&aff_platform=msite&m_page_id=3266amp-rE83Hr3UBIsyUmQppuId6Q1599407734987&browser_id=0ef620d6d2d141848d10212ad5a52fae&is_c=Y

Double the cost of the Interstate AGM battery from Costco.

 

[FelineFreddie]

An interesting read on this type of battery construction...FWIW...

Can LiFePO4 batteries explode, blow up? | Grepow Blog

In general, LiFePO4 batteries do not explode or ignite, which are safer in normal use, but they are not absolute and can be dangerous in some extreme cases.

www.grepow.com