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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > E90 330D - Carly Battery stats never above 40%



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      10-20-2019, 11:49 AM   #1
MrSweet1991
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E90 330D - Carly Battery stats never above 40%

Hi All,

Brand new battery and brand new Lucas alternator installed with new battery being registered and coded a few times in ISTA+ but the car has always registered the battery only being charged between 0 and 40%. The cars actual battery voltage tends to be around 12.4v whereas it should have around 12.7v I think

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      10-31-2019, 06:15 PM   #2
Heavyderv
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Hi. How long are you driving for, to charge battery? How much other load is on battery? Cold starts, glow plugs, lights, heater fan ect...

Is the earth strap good between engine and chassis. Good connection at battery?

Do you have a larger battery fitted in Ah, than registered with the ECU?
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