<br><div class="gmail_extra"><br><br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Charger costs missing????<br></blockquote><div><br></div><div>
Well, the AXP209 PMU does the Charging... either via USB OTG/VBUS or DCIN... so technically there isn't a need for a wall-wart charger as it could recharge via OTG.... and the charge circuit itself is all in the PMU and just requires some current sense lines. </div>
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This may be off the beaten track in terms of marketing,<br>
but have you thought about using<br>
rechargeable AAA, AA or 18650 batteries?<br></blockquote><div><br></div><div>AAA/AA provide at best, about 0.2C - meaning that they aren't really any good for providing more than a few hundred mA peak at a time. High internal resistance and all that. Even a 2000 or 3000maH NiMh AA or AAA is no comparison to a 'proper' battery.. most LiPo's can easily do 1C or 2C, and unprotected ones can go all the way out to near 100C... </div>
<div><br></div><div>They are also probably 3 times the thickness for half the juice.. so would not reliably work in a flat-pack setup</div><div>So whilst 'on paper' using the AA/AAA's is about the same - the reality is that its a much much much reduced capability solution.<br>
</div><div><br></div><div>The 18650's are getting closer.. but really.. by then... you may as well use a bulk purchased LiPo or LiFePo4 and be done with it (particularly given the form factor differences)</div><div><br>
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(If using AA NiMH batteries, it is possible to fast charge them<br>
in 15 minutes. Need a fan though and more components.<br>
Again a selling point for a bigger more expensive model<br>
but still off the beaten track in terms of marketing.)<br></blockquote><div><br></div><div><br></div><div>And yes - shorten their life by about 50% in the process... theres a downside to everything unfortunately :(</div>
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