Vickyn 4 Report post Posted September 4, 2023 Hi guys Any advice please. According to OEM part number, my E93 should take 70Ah 570A battery. (Varta E11) But the battery I pulled off the car is 100Ah 845A - Size 658C. Some research shows the Varta E44 which is a 77ah 780a fits the E93 perfectly. Should I settle on this or should I look for a battery slightly bigger that this Varta E44? Quote Share this post Link to post Share on other sites
Spinner99 55 Report post Posted September 8, 2023 My opinion is bigger is better when it comes to batteries Quote Share this post Link to post Share on other sites
overly__under__engineered 3 Report post Posted September 19, 2023 my new 70ah was draining flat enough not to start after a few weeks. If you are driving the car every week, you should be fine. I'm guessing the Comfort Access uses power when the car is just sitting Quote Share this post Link to post Share on other sites
