30lb weight saving with LiFePO4 battery - is it worth it?

[pwp25si]

Are you dailying the car? Thanks.

take a look at group26 batteries - it's basically the same height as group47 with a smaller footprint.
I've had one of these in my car for a year - under 14lbs.
$1k for a battery is insane.

https://www.amazon.com/dp/B0DBHS264C?ref_=ppx_hzod_title_dt_b_fed_asin_title_0_0&th=1

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[zumbooruk]

take a look at group26 batteries - it's basically the same height as group47 with a smaller footprint.
I've had one of these in my car for a year - under 14lbs.
$1k for a battery is insane.

https://www.amazon.com/dp/B0DBHS264C?ref_=ppx_hzod_title_dt_b_fed_asin_title_0_0&th=1

Thanks!

I will never pay $1k for a battery
the antigravity is 14 lbs

the mightymax group 47 is $230 and 9 lbs

I have good experience with the brand. US based with batteries made overseas [EDIT] Vietnam for sealed lead acid, most likely China for LiFePO4 [/EDIT]

I’ll take a look and see if they make group 26 and how much it weighs

[UPDATE] Correction 9.2 lbs for Mighty Max group 47 H5. Mighty Max does not make group 26 as far as I can tell [/UPDATE]

 

[Cueyo]

China owns a lot of earths lithium too, so basically all lithium comes from there nowadays

 

[marcusm86]

China owns a lot of earths lithium too, so basically all lithium comes from there nowadays

you're paying for the BMS imo

 

[AZCWTypeR]

I've run LFP batteries in older street motorcycles for many years without issues. In that application they are better than lead acid (and never leak acid).
I don't run them in my newer electric start only bikes. Newer bikes, like cars, have small electronics drains. These drains are bad for LFP if the vehicles sit a while between use.
Also LFP's tend to fail all at once, where lead-acids generally give warning (slow cranking, etc.).
Before installing a LFP in a CTR, I'd want to see someone on YouTube testing it and cutting it open to see the quality inside.

 

[zumbooruk]

China owns a lot of earths lithium too, so basically all lithium comes from there nowadays

China produces 21%

Australia produces 32%

US production is "withheld" but US has the most "Identified resources" about 20% of all identified resources

https://pubs.usgs.gov/periodicals/mcs2026/mcs2026-lithium.pdf

 

[iforgettopee]

Are you dailying the car? Thanks.

no, it's more of a weekend car - it can sit for a couple of weeks sometimes

 

[tom 4 china]

I assembled a starter battery using lithium cells myself, installed it together with the water injection system’s water pump in the trunk. I removed the spare tire with a DIY partition and offset weight toward the rear via this rear-mounted battery setup to lighten the front end of the vehicle

 

[zumbooruk]

FYI, Amazon has 10% off bringing price down to $207

https://www.amazon.com/Mighty-Max-Battery-MM-H5LI-Replacement/dp/B0GVPV3F99/

 

[David9962000]

Good deal,

Does it have to be on a battery tender? And does it have to be coded?

Thank you

 

[zumbooruk]

Good deal,

Does it have to be on a battery tender? And does it have to be coded?

Thank you

Lithium should hold charge better than lead acid batteries, and it has charge cycle life in the thousands of cycles (compared to hundreds for lead acid). Engine bay heat will shorten its life like it does for lead acid chemistry.

Any battery trickle charger will need to have a lithium mode (since the lithium have different charge voltage and curve), but it is only required if you don't intend to drive it for a few months. (though stock alternator will work fine to charge a lithium battery)

Honda does not require coding or registration for batteries. it "self learns" the battery voltage and current.

Disconnecting and reconnecting any battery (same or a replacement one) will require driving for a few miles for all the various driver assist stuff to reset.

 

[blueroadster]

Lithium should hold charge better than lead acid batteries, and it has charge cycle life in the thousands of cycles (compared to hundreds for lead acid). Engine bay heat will shorten its life like it does for lead acid chemistry.

Any battery trickle charger will need to have a lithium mode (since the lithium have different charge voltage and curve), but it is only required if you don't intend to drive it for a few months. (though stock alternator will work fine to charge a lithium battery)

Honda does not require coding or registration for batteries. it "self learns" the battery voltage and current.

Disconnecting and reconnecting any battery (same or a replacement one) will require driving for a few miles for all the various driver assist stuff to reset.

Just don't let a lithium battery lose a charge by sitting unused. Once depleted, the battery needs to be replaced. Example...My son left his One Wheel Board in the basement for a year and a half and forgot to keep the battery charged. At that point, the battery would no longer take a charge so he now has a paperweight (replacement lithium batteries are too expensive to replace).

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