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R58 2014 Several Questions

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Old 05-16-2018, 09:26 PM
ervicta ervicta is offline
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R58 2014 Several Questions

I have 2014 R58. Several days ago I've been seing "Increased Battery Charge" then I read about leaving door unlock discharges battery. I tested my battery with multimeter and reads 14. And lately I'm experiencing hesitation when starting the engine and when accelerating.
1. Is it possible my battery is not fully charged or bad? And cause the hesitation?
2. If I remove the battery and charge it, do I need to register the battery?
3. Can I pick up a battery at local car part store or is there specific type for mini?

Appreciate any help
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Old 05-17-2018, 07:19 PM
Tigger2011 Tigger2011 is offline
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You can't go by battery voltage with out placing a load on it. As batteries age sulfidation occurs on the internal plates. As this continues the batteries loose capacity. They may still hold 14 volts with no load but can no longer carry the amp draw needed. Your local auto parts store can test the capacity of the battery. Group 40, 47 and 48 batteries will fit with the group 48 being the exact same dimensions as the factory battery. As long as it is a round 600 CCA with a 70 amp/hour rating or better you can use. One note of caution that can be easy to overlook. Make sure the battery you buy comes with the vent hole on the side to plug the vent tube into. All lead acid batteries gas when charging producing sulfur dioxide and hydrogen. Directly behind your battery is the cabin air filter. This is where outside air enters the cabin when the environmental system is not on recirculate.
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Old 05-17-2018, 07:25 PM
Tigger2011 Tigger2011 is offline
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Almost forgot. If the negative terminal of your battery does not have an additional connector on it with wires coming of it then you do not have IBS monitoring and no battery registration is necessary. If you do have the IBS option then battery registering is recommended to maximize your new battery life. But it is not absolutely necessary. I use the Carly for BMW app on my phone to run diagnostics, clear error codes, reset service checks and do battery registration.
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Old 05-17-2018, 07:51 PM
ervicta ervicta is offline
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Quote:
Originally Posted by Tigger2011 View Post
You can't go by battery voltage with out placing a load on it. As batteries age sulfidation occurs on the internal plates. As this continues the batteries loose capacity. They may still hold 14 volts with no load but can no longer carry the amp draw needed. Your local auto parts store can test the capacity of the battery. Group 40, 47 and 48 batteries will fit with the group 48 being the exact same dimensions as the factory battery. As long as it is a round 600 CCA with a 70 amp/hour rating or better you can use. One note of caution that can be easy to overlook. Make sure the battery you buy comes with the vent hole on the side to plug the vent tube into. All lead acid batteries gas when charging producing sulfur dioxide and hydrogen. Directly behind your battery is the cabin air filter. This is where outside air enters the cabin when the environmental system is not on recirculate.
Thank you Tiggerw2011 think I need a new bettery still using the original battery. This one about 4 years old... thanks
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