12V battery replacement poll

[PA Lightning]

I just replaced my OEM 12v with the OHMMU 12v Li-ion with a 4year warranty and it was less than $400.00. Sure still expensive, but it is designed to work better and longer in an electric vehicle that is notoriously hard on lead acid/AGM batteries.

The fellow in post 91 reported that the OHMMU Lithium is not available until March 2026 and that he received a Sodium. Did you actually get a Lithium?

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[The Weatherman]

The fellow in post 91 reported that the OHMMU Lithium is not available until March 2026 and that he received a Sodium. Did you actually get a Lithium?

Yes. Ordered it about 2 weeks ago. It had a 20% discount offer at that time. And it was priced at $400.00 not $479.00.

 

[Zprime29]

Yes. Ordered it about 2 weeks ago. It had a 20% discount offer at that time.

Under $400 I'd consider it, but the list price at the moment is $480. I'll have to put their site on my watch list to see how often it comes on sale.

 

[Karlos]

Added mine to the list of replacements, in warranty by a month. 2023 Lariet ER @ 27,745 miles. Started getting the "Battery Saver" mode last month. Truck normally sits in garage for 2 weeks while I'm away. Typically find it at ~ 60-70% SOC. OTA updates get stuck, haven't seen one go thru since July & still don't have BC 1.4 . Cheapo trickle charger didn't seem to keep up or figure how to charge it up. I'm going to try my aircraft AGM maintainer on the new one.

 

[RSMLightning25]

I chose other. I'll replace mine when I start to notice gremlins that are usually associated with a battery that's on it's way out.

 

[mr.Magoo]

I just replaced my OEM 12v with the OHMMU 12v Li-ion with a 4year warranty and it was less than $400.00. Sure still expensive, but it is designed to work better and longer in an electric vehicle that is notoriously hard on lead acid/AGM batteries.

Hopefully this does not happen to you or any more/other Ohmmu owners...

https://www.reddit.com/r/F150Lightning/s/bCvwSFpw3F

 

[The Weatherman]

Hopefully this does not happen to you or any more/other Ohmmu owners...

https://www.reddit.com/r/F150Lightning/s/bCvwSFpw3F

Thanks for sharing.

Well that can’t be good!!

Wonder if this is why this version suddenly become unavailable on their website?

 

[The Weatherman]

There is something off with the picture of the installed battery. In my case I had to turn the battery backwards to that photo in order to connect the positive terminal.

It may be that the OHMMU label was put on the opposite side of that battery, but it could be that battery was installed with the polarity reversed.

Odd for sure?

 

[mr.Magoo]

Backwards?
Isn't your positive terminal on the right like in this picture ?
If the polarity was reversed I doubt it would have worked at all, let alone 7 months.

 

[The Weatherman]

Backwards?
Isn't your positive terminal on the right like in this picture ?
If the polarity was reversed I doubt it would have worked at all, let alone 7 months.

No. With + on the right, the label is then on the back. The front is blank on mine.

Agree, I missed that 7mo install.

 

[klossfam]

My original 3-1/2 old 12V is showing 100% SOH and 426 CCA but SOC is usually low after sitting overnight in the cold (35% or so SOC).

It works but past EV 12V experience says we are nearing the EOL. All my vehicles have a lithium jumper pack, but I'd rather not have to use it.

I wish the Ford EVs were set up for H5 Group size. A lot easier and less expensive AGMs. Used by all Hyundai/KIA and GM Ultium EVs.

 

[MrLoganRoss]

Regardless of the type of car, I charge battery at 3 years or less. I hate getting stuck.

 

[klossfam]

Regardless of the type of car, I charge battery at 3 years or less. I hate getting stuck.

Definitely a wise way to operate. This is first 12V I've had in an EV that made it this long. I wish H3 AGMs were $129 like H5s.

Weise is a very good aftermarket AGM for EVs but they no longer sell H3 size.

 

[MrLoganRoss]

Definitely a wise way to operate. This is first 12V I've had in an EV that made it this long. I wish H3 AGMs were $129 like H5s.

Weise is a very good aftermarket AGM for EVs but they no longer sell H3 size.

Yep. Learned my lesson twice with my Volvo ICE wagon. I think batteries tote the last 15 years have been designed to expire.

 

[Maquis]

I wish H3 AGMs were $129 like H5s.

The list price at Ford for the OEM H3 is $139. Pretty close.

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