Best Battery Replacement Options

[jk715]

Picked up a ytx30l 10 lbs for $50 during holidays. 3D printed a h7 adaptor base frame. Works fine for track /weekend car. Keep on charger when i know it’s gonna be in storage for more than a week.


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[EYEHAVEYOU]

Just went to the dealer and bought a new OEM one last year, came to $195 with tax FWIW.

[mpower22]

I have an optima yellow top. Its the battery i use in all my vehicles. Have one in my 2008 toyota with a sound system. Installed it with the system in 2008. Have drained it dead couple of times in recent years and it still holds a full charge. 12 years. Optima makes a yellowtop for the e46. No board needed.

Ah, I see. That must be new, since 2018 or 2019.. definitely didn't exist before that. The H6 from Optima would be the new fit for this. The D35 is smaller and lighter (with smaller CCA along with it), but is served me very well unless the car was sitting for over a week. In that case it would be good to put a tender on it.

https://www.bimmerworld.com/Safety-Race-Interior/Battery-Electrical/OPTIMA-H6-BMW-DIN-Direct-Fit-Replacement-Battery.html

[Flex408]

I recently bought a Champion H7/94R battery. Perfect fitment.

https://www.pepboys.com/champion-agm...roduct/2071662

I bought the same one at Pep Boys a little over a year ago.

[r4dr]

Costco batteries all the way.

[Rkymtnrider]

Did you decide on one? If you like to listen to your music on the accessory position while working on your car or cleaning it, you should go for the Optima Yellow Top. You just need a 3/4 - 1" board to go under the hold down clamp and it fits snug in place, it won't move at all. Plus it's a lot lighter. The yellow top is deep cycle and designed to be deeply discharged without being damaged. I had a custom audio system in there though, so I needed the deep cycle.

I have an optima yellow top. Its the battery i use in all my vehicles. Have one in my 2008 toyota with a sound system. Installed it with the system in 2008. Have drained it dead couple of times in recent years and it still holds a full charge. 12 years. Optima makes a yellowtop for the e46. No board needed.

[mpower22]

Did you decide on one? If you like to listen to your music on the accessory position while working on your car or cleaning it, you should go for the Optima Yellow Top. You just need a 3/4 - 1" board to go under the hold down clamp and it fits snug in place, it won't move at all. Plus it's a lot lighter. The yellow top is deep cycle and designed to be deeply discharged without being damaged. I had a custom audio system in there though, so I needed the deep cycle.

[K-Dawg]

Duracell from Sam's (made by East Penn) are pretty hard to beat for the money.

[dl.m3]

The car is in storage right now. I'll snap a pic next time i go see her.

I would seriously reconsider getting the restart button if you can. Otherwise you will need a jump starter if the car sits for too long.


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Yeah I thought about it, but I got their battery tracker so I can see the capacity at all times on my phone, and I'll have a lithium trickle charger on it for when it'll be parked for a while.

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[eacmen]

If you could yea that'd be great, I was gonna do L brackets too of some sort. I didn't want the Restart version because I was worried it would go to sleep too often and then having to go in the trunk everytime to wake it up to start my car.

The car is in storage right now. I'll snap a pic next time i go see her.

I would seriously reconsider getting the restart button if you can. Otherwise you will need a jump starter if the car sits for too long.


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[ZHPizza]

If you could yea that'd be great, I was gonna do L brackets too of some sort. I didn't want the Restart version because I was worried it would go to sleep too often and then having to go in the trunk everytime to wake it up to start my car.

It only goes into sleep mode if the voltage drops to where it is close to dying. It basically sees the drop and cuts the connection before it discharges completely. You go into the trunk and hit the button (or use the remote for the higher end models) to restore the connection so you can start the car with the little bit of charge that it saved. It was the only type of LiFePO battery that I considered because I didn't want to have to carry an extra jumper pack.

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[dl.m3]

I can take a picture of what the previous owner fab'd for mine but its basically a U shaped piece of flat aluminum with a hole drilled out for the button on top and two L shaped brackes at the bottom to keep it centered.


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If you could yea that'd be great, I was gonna do L brackets too of some sort. I didn't want the Restart version because I was worried it would go to sleep too often and then having to go in the trunk everytime to wake it up to start my car.

[ZHPizza]

I have the Antigravity ATX-30 RS in my street car with no issues so far. It's sat for over a week at a time and started strong.

[eacmen]

I ordered a ATX-20-HD. For a weekend car that I can keep trickle charged, figured 30 Ah is enough. Ill have to figure out how to mount it though

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I can take a picture of what the previous owner fab'd for mine but its basically a U shaped piece of flat aluminum with a hole drilled out for the button on top and two L shaped brackes at the bottom to keep it centered.


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[dl.m3]

I ordered a ATX-20-HD. For a weekend car that I can keep trickle charged, figured 30 Ah is enough. Ill have to figure out how to mount it though

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