I have a 41CX that eats its way through batteries way too fast, even when turned off. Anybody have suggestions what to look for when I open the unit up? BACKGROUND: I measured the current draw using a DMM and the calculator (without plugins) is drawing 0.54 mA from the batteries when turned off, compared to another (good) CX which drifted around between about .005 to .030 mA under the same conditions. OK, that explains the short battery life. But the bad calculator also draws 3.3 mA when turned on and idle, as opposed to 0.8 mA for the good one. While running CAT 0, 12.3 mA for the "bad" one, 8.3 MA for the good one. The higher draws when operating seem like a really bad sign. The calculator works fine, justs draws too much current. Suggestions what to look for?
41CX current draw problem
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