Battery drain on B210

[mark64 0]

My B210 recently started draining my battery when parked for a few days. I switched to a known good battery and same problem. Anyone have a idea where to start looking for the problem? Thanks Mark

[Tom_Byrne 0]

MY TWO CENTS: Try cleaning and tightening all the connections(voltage regulator, starter/generator, etc;)first. If that does not work, time to get the tester out and test the regulator and S/G, but it sounds to me like the regulator.

[Dark 0]

check the points in the regulator (may be burnt and or stuck)