Batteries, Battery Options Options

[wsuetholz]

Hello,
Would this type of battery work? If so, then could the battery be integrated into where the hinge is? I realize that this is probably not workable, but, cheap batteries, and the possibility of simplifying the system board layout by not putting the battery in the middle of it, ok, to one side.

2700ma AA rechargeables

[Da_Blitz]

actually from what i have seen alkalines only do about 1000maH but the battery discharge curve is diffrent which for some applications means it gets a longer life

basically an alkilines charge can be worked out from the voltage because as the charge goes down so does the voltage, with the rechargables its at about 90%-100% voltage until you hit 80% capacity, at which point the voltage drops throgh the floor

now if you have a device that requires x volts and is sensetive to changes then you can see that an alkaline would dip past there sooner. however wether or not this would effect s would have to do with the chipset i use for charging, and a bit of testing however i am inclined to use li-Ion due to the weight/capacity advantages

one other thing to note that 1 3.7v litium ion battery @ 1000maH is equal to 3x 1.2v NiMihs @ 1000maH (you cant jus mach maH you have to match the power (power = voltage x current/maH)) so even if the NiMih is 1000mah, i have to pull tricks to bump that up to 3.3v and 5v (cpu IO and USB and perhaps 2.5v) but to do so i have to consume extra current

i am tired at the moment so there may be a mistake in the above statment but basically you dont get somthing for free