Lighter battery option - B

[Expressivedrives]

Just wanted to report, that lighter 60Ah S5 A05 BOSCH AGM 60AH TYPE 027 S5A05 works absolutely well on my M3 E92. I have used it about full year, through the cold winter. Started my car at -10C (14°F), no problems and no errors.



Li-Ion car batteries cost roughly 1000 € and weight ca 3 kg or so. I did not go to this direction in my weight reduction progress. Instead, I chose more economic way to switch heavy 95 Ah lead acid battery to 60 Ah battery.

Before: 95 Ah; 26 Kg
After: 60 Ah; 16 Kg

Weight savings: 10 Kg

[SYT_Shadow]

That's a pretty good weight delta for a reasonable price!

[Rochen_00]

Originally Posted by Expressivedrives

Just wanted to report, that lighter 60Ah S5 A05 BOSCH AGM 60AH TYPE 027 S5A05 works absolutely well on my M3 E92. I have used it about full year, through the cold winter. Started my car at -10C (14°F), no problems and no errors.



Li-Ion car batteries cost roughly 1000 € and weight ca 3 kg or so. I did not go to this direction in my weight reduction progress. Instead, I chose more economic way to switch heavy 95 Ah lead acid battery to 60 Ah battery.

Before: 95 Ah; 26 Kg
After: 60 Ah; 16 Kg

Weight savings: 10 Kg

During the year, what was the longest period of time without starting the car? Sometimes I go 2-3 weeks without turning it on.
Have you had any problem in that regard?

Thank you

[Expressivedrives]

Hi Rochen

I use Ctek MXS 5.0 when I know that cars sits longer time. But 2 weeks was no problem. Happened few times.