Best Battery Replacement Options

[Radekxpl]

FYI going on 5year with Antigravity battery no problem starts up every time and if it don't the restart feature have save me twice as well when I left lights on 😅😁
There a $40 off sale going on right now as well

https://ebay.us/6cYcJP

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[BL92]

For SMG ( high draw current ) i bought the biggest 1 i could squeeze in back there, i think it was DIN88, i will check

Specs

EXIDE EXTREME XDIN88MF 42 MONTH WARRANTY PASSENGER BATTERY.

INFO

• Volts:12
• Tech: SMF CAL
• ASS:C
• CCA:810
• RC:160
• 20 HR:90
• Ledges: F&EL
• Terminal: STD

Size:

• Length:351 mm
• Width:175 mm
• Height:175 mm
• Weight:22.1 Kg

[CarbonSchwartzenegger]

OPTIMA 35 REDTOP Battery for BMWs - 31.7 LBS (bimmerworld.com)


I made my own bracket and it fits perfectly. 31lbs and 720cca.

Looking for any designs out there, I have mine ugly rigged and would like to see if anyone could post their setups with the redtop?

[cidini]

That’s a great data point. During a battery change, the Antigravity ATX-30 clearly holds its charge very well, even after 4-6 weeks sitting in the garage, and starts the car without hesitation.