Lightweight battery

[Ghost_M3]

Looking to purchase a lightweight battery and I’ve found two that I like. Has anyone used any of the following?

https://www.deadweightindustries.co.uk/products/touge-500

or

https://burkhart-engineering.com/en/shop/bmw/bmw-ag/bmw-1er/lite↯blox-lb14xx-leichte-batterie-fuer-performance-und-motorsport/

I like the lite blox because of the kill switch feature.

[Ghost_M3]

Updated website for the lite blox battery

https://en.liteblox.de

[eacmen]

No experience with either model you listed. We have a small lithium battery on the track car. It has sn undervolt switch to avoid leaving you stranded. Its on the battery itself. For a street car I would recommend a remote switch to the drivers cockpit area so you're not digging in the trunk to start the car.

[e46mpwrd]

If your open to suggestions. Anti gravity if you have the money. 12lbs. I have the H7 60Ah, ive never had a single issue and the auto turnoff feature is great. Also the ability to check voltage with the app via Bluetooth.

[Obioban]

I've been running a Brail GU1R for over 4 years now, and not had as single issue. That said, I do put it on a maintainer if I'm parking the car for more than a week or two. That said, I also do that on the stock battery M5 and M3 wagon, soo....

When it ages/cycles out, I intend to replace it with something with an automatic cutoff feature, as that does seem like nice peace of mind. But, doesn't seem like it's worth replacing a wear item preemptively for that functionality.

[Ghost_M3]

Thank you everyone for the advice. I’m looking to cut the most weight from the car and I like features that allow me to see voltage of the car so I might go with the anti gravity but the lite blox has some features that I like. My car does not have raiding or other features that consume a lot of power so I’m not worried about a lithium battery. My battery is about four years old and I believe I’ll need to replace it soon.

[cozmo kraemer]

Ive had the Braille GU1r for 4.5 years now with no issues. It is 4.5# i believe. I also have a small 4 channel stereo amp that it powers, and the car sits for long periods sometimes. In the longer periods, I use their trickle charger to keep it fresh.

[BMWahba]

I'm planning to go with an Anti-Gravity Li-Ion battery when my CSL battery goes out. I think they're around $700 and weigh about 8-10lbs and are a stock battery size, so easy install.