[eeyang92]

The aluminum bracket for for the RACE9 batteries is ~$69 USD, while the base mount (plus hardware? Minus the SAE terminal kit) is ~$44 USD. Honestly, it seems that if you have a 3D printer you could print the ABS baseplate for a few dollars in material. Also, I'm not convinced the aluminum bracket is necessary if you can leverage the stock battery lock to hold the battery down, especially since the battery is so light.

I'm tempted to order the RESTART9 battery, but since my stock battery seems pretty healthy, it feels like a bit of a waste so I might wait a bit. But I'll definitely post the STL file when I do (if someone hasn't already put one up!)

[F87source]

Originally Posted by eeyang92

The aluminum bracket for for the RACE9 batteries is ~$69 USD, while the base mount (plus hardware? Minus the SAE terminal kit) is ~$44 USD. Honestly, it seems that if you have a 3D printer you could print the ABS baseplate for a few dollars in material. Also, I'm not convinced the aluminum bracket is necessary if you can leverage the stock battery lock to hold the battery down, especially since the battery is so light.

I'm tempted to order the RESTART9 battery, but since my stock battery seems pretty healthy, it feels like a bit of a waste so I might wait a bit. But I'll definitely post the STL file when I do (if someone hasn't already put one up!)

That would be great if you made a 3d printeable battery bracket!

[Vster]

I have spoken with the team at Lithiumax and the Restart 9 batteries are 24 Ah lithium nominal or 68 Ah if comparing it to the standard AGM battery. This is about 2/3rds the OEM battery capacity, so not too bad for a 16-18kg weight advantage

[ZM2]

Following up, my long E50 cranks and another winter have my nearly 7-yr old factory battery sounding pretty sad on startup.

The Lithiumax batteries are now more expensive and shipping costs to the US are higher, plus the need to buy the OEM bracket bracing vs Antigravity's drop in fit had me looking more into AG this time.

Then, I found a good deal on the 40Ah AG battery at $635 shipped and pulled the trigger.

So, I'm coming back around to the question of how would you guys register the battery once installed?

Thanks!

[medphysdave]

Originally Posted by ZM2

Following up, my long E50 cranks and another winter have my nearly 7-yr old factory battery sounding pretty sad on startup.

The Lithiumax batteries are now more expensive and shipping costs to the US are higher, plus the need to by the OEM bracket bracing vs Antigravity's drop in fit had me looking more into AG this time.

Then, I found a good deal on the 40Ah AG battery at $635 shipped and pulled the trigger.

So, I'm coming back around to the question of how would you guys register the battery once installed?

Thanks!

I'm interested in this as well. Does it require coding, or does the onboard battery electronics make it pnp?

Let us know how the 40Ah battery works. I was thinking of the 60Ah myself.

[F87source]

Originally Posted by ZM2

Following up, my long E50 cranks and another winter have my nearly 7-yr old factory battery sounding pretty sad on startup.

The Lithiumax batteries are now more expensive and shipping costs to the US are higher, plus the need to by the OEM bracket bracing vs Antigravity's drop in fit had me looking more into AG this time.

Then, I found a good deal on the 40Ah AG battery at $635 shipped and pulled the trigger.

So, I'm coming back around to the question of how would you guys register the battery once installed?

Thanks!

Nice! That's a good deal, I have no doubt the battery is top notch, just the customer service from my experience was not very good.


First code the battery to the nearest AH rating, then register it. So you'll need a coding tool (esys or something similar) and something to register it (ISTA or something to register it).

[ZM2]

Originally Posted by F87source

Nice! That's a good deal, I have no doubt the battery is top notch, just the customer service from my experience was not very good.


First code the battery to the nearest AH rating, then register it. So you'll need a coding tool (esys or something similar) and something to register it (ISTA or something to register it).

Cool. My mechanic will handle it while the car is at the shop for track prep, but just wanted make sure there wasn’t more to it than selecting 40 Ah (or close to it) and registering it. Thanks!

[F87source]

Originally Posted by ZM2

Cool. My mechanic will handle it while the car is at the shop for track prep, but just wanted make sure there wasn’t more to it than selecting 40 Ah (or close to it) and registering it. Thanks!

No that's about it, but make sure you code it and register it. When you change battery capacity you have to code as well as register.

[ZM2]

Originally Posted by F87source

No that's about it, but make sure you code it and register it. When you change battery capacity you have to code as well as register.

Found a great video:

Altho, 60Ah looked like the lowest setting in ScanTool, so I wonder if I should step up from the 40Ah battery for proper charging by the car?

[F87source]

Originally Posted by ZM2

Found a great video:

Altho, 60Ah looked like the lowest setting in ScanTool, so I wonder if I should step up from the 40Ah battery for proper charging by the car?

It went much lower on my tools than 60 Ah, let me dm you.

[tux2005]

BimmerLink would let you register the battery but I think you'd need to use BimmerCode to code for the different capacity. But I don't know off hand what options exist in BimmerCode for the M2, I can check if it'd help anyone.

(I haven't used either tool on my M2, I have used BimmerLink to register a battery on a 1 series but capacity was like-for-like).