12V Battery replacement with H4

[AlaskaFlash]

My 12 Volt battery went bad, bulging sides, Only 2 years old. Replaced with a new Motorcraft AGM H3 under warranty. This battery went bad after two weeks with bulging sides. Battery saver notices showing up on Ford Pass. I replaced it myself with a H4 AMG battery that says it's electric & Hybrid compatible. I also reset the BMS by using the 5 bright headlight switch followed by 3 brake pedal trick. It seemed to reset the BMS. I had to cut off the spacers in the tray so the larger battery would fit. I've attached photos.

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[Zed]

For those of you who have installed the H4 battery in your Lightning: how is it working out? I know there's been a lot of discussion here about if/how well the BMS can deal with the extra capacity of the H4. I was considering doing the swap but decided to hold off and let the intrepid folks here blaze that trail.

I'm probably not the only one wondering about his, so please respond with your experience and any thoughts about it.

Thanks!!

 

[Adventureboy]

For those of you who have installed the H4 battery in your Lightning: how is it working out? I know there's been a lot of discussion here about if/how well the BMS can deal with the extra capacity of the H4. I was considering doing the swap but decided to hold off and let the intrepid folks here blaze that trail.

I'm probably not the only one wondering about his, so please respond with your experience and any thought about it.

Thanks!!

BMS handles it no problem. I did mine in early March and no issues. 12v related messages have disappeared (although it is still summer).

 

[The Weatherman]

Martin Meeks and Zach Carpenter have a retrofit tray for this, if anyone is interested.

I personally think it’s a little pricey, but others may not.

 

[Lyle]

Martin Meeks and Zach Carpenter have a retrofit tray for this, if anyone is interested.

I personally think it’s a little pricey, but others may not.

Yeah I think it comes out in September. I’m waiting for Martin’s to get back to me on shipping costs because I’m in Hawaii and he said free shipping was to 48 only. I think the kit also comes with the battery negative terminal extension cable as well. Certainly pricey but it’s supposed to allow drop in replacement without having to remove the tub.

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