Sony VAIO CW test: problems with battery and charging

On one of the most popular American forums have appeared a few comments on an issue on recharging the battery supplied with the portable Sony VAIO CW. But what is it?


Appeared on net some considerations about a problem that many users of Sony VAIO CW systems are watching, the battery and linked to his lack of recharge. Specifically, it would seem that even in sleep mode, battery life tends to decline rather quickly and almost inexplicable. The problem, which deals with most laptops in this series and in particular those equipped with the Intel Core i5 and coupled Nvidia GeForce 330M, would lead to a rapid decline in battery power even when the notebook is turned off even at all.

Are no clear reasons behind this situation. Hypothesis began to circulate that different but probably more likely is a kind of inefficiency of the system management software that would not allow the battery to recharge it beyond a certain level (80%). On American Forum, a user has carried out several tests for this anomalous behavior. The results are as follows:

• Test 1: 100% Battery, 4 hours shutdown: 90%;
• Test 2: 65% Battery, no HDD, 3 hours shutdown: 48%;
• Test 3: 48% Battery, ‘Power Saver’ battery mode, 5.5 hours shutdown: 20%;
• Test 4: WiFi turned off;
• Test 5: 50% Battery, Battery out: 50%.

Changing the settings of the battery directly from the Windows operating system had no influence on these results. In fact, at present, there seems to be a real fix to the problem that should be addressed by the parent who at the time, had no immediate information on it. Some time ago, even the portable VAIO Z series seem to have suffered the same problems. In fact, the VAIO management software is designed to prevent degradation of the polymer lithium battery because of frequent recharges to 100%.

So, at least in the final analysis, may not have anything to do with what has been called the phenomenon of Battery Drain. A more convincing hypothesis is that this could be a problem at the motherboard, for some reason, keeps the system still partially active. In the coming weeks is likely that he knows something more.

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