You could use button cells.
You could use button cells.
I am building a radio control remote for a camera requiring a 5Volt 13 m/a supply
and using 4 x AAA
Are any smaller batteries available to keep the size and weight down
Any Help appreciated
Many Thanks
I should have said 4 x AAA rechagable Nimhs
Ok, then use rechargeable button cells... but seriously... Lithium is the way to go for light. If you can make the system go on
4V, you may get by with one lithium cell.If you've got a radio receiver, why not just steal power from that? mike
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I bought 50 LR-44 button cells (alkalines) on Ebay for about $6 including shipping. They came packed in tear-off blister packs. These are the ones used for laser pointers and LED flashlights. They will handle 13 mA for a few hours. But they're only a dime apiece so you just throw them away and put a few more in. Four of them will give you about 6V, so you can put a 1N4002 rectifier diode in series with one lead to drop about .8V to give about 5 or so volts.
13down
With the lower the volts and m/a the longer life I am trying to compromise
between this and working range
Many thanks for your help
Syd
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