Re: Sony Cyber-Shot DSC-W7 Digital Camera--battery...
To solve this open the camera and remove the battery chamber (be careful with the cable that joins the chamber with the main board because it is very fragile). Once you have the battery chamber clean all the contacts with a contact cleaner. By all the contacts I mean, the 4 contacts for the batteries and the two contacts (male and female) that join the main board and de chamber. Be careful when you apply the contact cleaner to the main board contact bacause it is a liquid and might harm your lens if it reaches it. I have made this with my camera and worked awesome.
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may be batteries you brought are old try with normal ( not rechargeble ) batteries. it would not last long but you can take atleast 30 to 50 photos. if it works it means new batteries are faulty.this type of problem i never saw in camera.use SANYO harmolattice HR-3UQ batteries.
If its a Lithium ion battery(similar to a mobile phone battery) then open battery compartment, clean battery contact points and try again after recharging the battery. If the camera uses AA batteries look for the current ratings on the side of the battery, generally digicams need batteries with more than 1200 mAh (I use a 2000 mAh for my Canon SX110 IS digicam). This current rating may vary for different manufacturers.
The first charge you should let it go overnight, so it has a good solid charge. After that it depends on the mAH of the battery, the higher the number, like 1400, it should take about 3 hours. There should be a led light on the charger, its red when charging and turns green when completed. The chargers have a voltage regulator on them, so that you can't over charge a battery.
If you have used this camera more than three months Try changing the battery. Before using fully charge the battery. Let the battery consumed in your camera fully then you charge again. Otherwise the battery life will reduce. Try this option before trying any other option.
do you use alkeline batteries? if yes then they would end in 20-25 shots. Instead, use rechargable batteries of 2500 mah which will last long, very long. On my Cybershot H1, they give aproximate 350 shots with single recharge.
Go for Sony Original Batteries or Uniross brand also works fine.
The user manual would not be of much help. Please try to clean the battery contacts inside the camera.
Please use the new fully charged NI-MH accu batteries preferably 2500 maH capacity.
If this measures do not provide a cure please contact the nearest Authorized Sony Service.
If you need more info please advice.
NiMH batteries. You can use the larger mAh AA.
It has more capacity and should give you longer service before needing recharge.
The battery manufacturers recommend that you do not mix the batteries. i.e. don't use mAh 2100 and mAh 2500 as one set, use all 2100 or all 2500 as one set.