What kind of batteries do you want to use?, May be a Li-Ion pack will reach your needs, on that way, use the MCP73838.
I used on one project and work well, look at AN1149
Regards
Pablo Ginhson
{Quote hidden}> From:
spam_OUTjohn_fm_watersTakeThisOuT
hotmail.com
> To:
.....piclistKILLspam
@spam@mit.edu
> Subject: [EE] handheld case that comes with built-in rechargeable battery.
> Date: Mon, 11 May 2009 11:33:43 -0700
>
>
> Hi All,
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> I built a circuit to be used as a small handheld device. But it takes 5V and consumes quite a lot of power. So I'm thinking of using rechargeable battery as the power source.
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> Is there any handheld case that comes with built-in rechargeable battery (preferably with charger as well)? I hope, with this kind of cases, I can just need to put my circuit in and the the built-in rechargeable battery will provide the power. When the power drains out, I just need to insert the charger plug into it to charge up the battery.
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> Is such thing available in the market? If not, Can someone suggests how to make something like that myself? Or some alternate solutions? I just can't use standard battery since my experiment shows that the device will drain out 4 AA alkaline batteries in 2.5 hours, which is too expensive?
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> Thanks in advance!
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>
> John
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