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The BMW Range
5 Series
E39
Voltage stabilizer
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<blockquote data-quote="jaleeks23" data-source="post: 384476" data-attributes="member: 8431"><p>Update - Battery truly koyak, tested with battery tester, battery drains to 10V and can't hold charge....Charging voltage is 15V when engine is running - using sunwa analogue meter, revving the car upto about 4000rpm also showed stable and consistent voltage supply. I have not yet tried using the Sanwa digital meter yet.</p><p>There was no leakage in my car, everything is fine, everything is always OFF when I switch off my engine. I even ensure my aircon is off before starting my car as the E39 aircon sometimes will switch ON automatically before cranking the engine.</p><p></p><p>Bro Jarance,</p><p>Original BMW battery can add electrolyte? The battery could be charged but couldn't hold the charge.</p><p></p><p>Thank you</p></blockquote><p></p>
[QUOTE="jaleeks23, post: 384476, member: 8431"] Update - Battery truly koyak, tested with battery tester, battery drains to 10V and can't hold charge....Charging voltage is 15V when engine is running - using sunwa analogue meter, revving the car upto about 4000rpm also showed stable and consistent voltage supply. I have not yet tried using the Sanwa digital meter yet. There was no leakage in my car, everything is fine, everything is always OFF when I switch off my engine. I even ensure my aircon is off before starting my car as the E39 aircon sometimes will switch ON automatically before cranking the engine. Bro Jarance, Original BMW battery can add electrolyte? The battery could be charged but couldn't hold the charge. Thank you [/QUOTE]
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