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Bear100 · 02-22-2009, 05:17 PM

Although I have not replaced the battery in the Sony 505, I have replaced countless batteries in my power tools, laptops, mp3 players etc. It is simple and you can purchase the batteries for less than half the price sold through normal shops. Here is how.

find out the physical size of the battery H x W x D
find out the voltage, we know for the Sony it is 3.7volts
find out the type of battery for Sony we know it is Li-Ion (you can not mix and match type as the charging ciruits are tied to this)
find out the capcity (in this case it is 850mAh)

then select an appropriate battery to replace, here are two battery only sites:
http://www.batteryspace.com/
http://www.all-battery.com/
purchased from both, good service, great price and they have a forum section if you need help. By the way the 850mAH battery on these sites go from $12 to $20 delivered with tax. The batteries are of the same quality as the original Sony as well.

Now comes the interesting part, with newer technology battery capacity has gone up for the same physical size. Thus if a 850mAH fit in you Sony you might now be able to get in a 1200mAH. What does that mean in practical terms? It means that you will be able to get far longer before charging - in this example almost 50% more. Your Sony, like most high quality devices contains circuits that prevents over charging and over draw of power operating the unit - which means this switch out is safe.

Good luck - with the pictures provided here and some basic mechanical knowledge it is easy.

02-22-2009, 05:17 PM	#5
Bear100 Junior Member Posts: 6 Karma: 134 Join Date: Feb 2009 Device: none	Although I have not replaced the battery in the Sony 505, I have replaced countless batteries in my power tools, laptops, mp3 players etc. It is simple and you can purchase the batteries for less than half the price sold through normal shops. Here is how. find out the physical size of the battery H x W x D find out the voltage, we know for the Sony it is 3.7volts find out the type of battery for Sony we know it is Li-Ion (you can not mix and match type as the charging ciruits are tied to this) find out the capcity (in this case it is 850mAh) then select an appropriate battery to replace, here are two battery only sites: http://www.batteryspace.com/ http://www.all-battery.com/ purchased from both, good service, great price and they have a forum section if you need help. By the way the 850mAH battery on these sites go from $12 to $20 delivered with tax. The batteries are of the same quality as the original Sony as well. Now comes the interesting part, with newer technology battery capacity has gone up for the same physical size. Thus if a 850mAH fit in you Sony you might now be able to get in a 1200mAH. What does that mean in practical terms? It means that you will be able to get far longer before charging - in this example almost 50% more. Your Sony, like most high quality devices contains circuits that prevents over charging and over draw of power operating the unit - which means this switch out is safe. Good luck - with the pictures provided here and some basic mechanical knowledge it is easy.