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Mentos i good for joke with diet coke but Mentos Chewing Gum are good for battery holder!!!
today i take a long test with only 2 cell and mentos chewing-gum holder O_O Test start situation:M001 off and internal battery sufficent only for boot and re-go automaticaly in off. 7:40 connenct battery 2cell in series (7.4v) in power directly. m001 start to charge and i turn on pad 8:20/8:40 no "in charge" icon blu led off and segnal only Charge 9.40 work... 10.34 it work test continue. 12.03 it continue to work. 12.20 blackout.no for charge internal battery(need 9v) but only for stay on.~4h on only with external battery is nice performance!!cost:4.96$ 2x18650 Digital Battery Charger6.35$ TrustFire 18650 3.7V 2500mAh Rechargeable Lithium Batteries (2-Pack) free if use old notebook battery pack. 2$ Mentos chewing gum ... i use used old box from my collegue :)2$ psp power cableMy personal final price 4.96 i only buy charger
other item i find for free. max price ~16$nice battery pack for replace cell..... http://www.dealextreme.com/details.dx/sku.27945 7200mha teorical ~11h50min
 

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Discussion Starter · #3 ·
mm yes is better but i don't want modify a case and need a switch for disconnect it when internal battery is in charge (you risk if try charge 18650 battery whit internal charger.) i only study travel solution (and when i have time i want make simple holder for 4 cell with tablet)thx
 
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