Originally Posted by noguru
I don't think there's much risk to the Tab. The output of the various USB chargers (car, wall wart, etc.) is regulated at 5V, and they're usually rated at half an amp.
HOWEVER! The Samsung USB charger is rated to deliver 5V at TWO AMPS (mine is). Obviously, the Tab draws more than the half amp of a normal USB circuit. So, if you plug the Tab into a typical USB circuit, which was designed to deliver half an amp, something bad will happen - like an internal meltdown.
An inadequate charger might be damaged by heat due to excess current flow, but not the tablet.
But what do I know...?
A standard PC USB gives 5V at 500mA or 0.5A. Why would a car charger giving the same cause internal meltdown? If you plug the SGT into a PC with the data cable it doesn't suffer internal meltdown either... The SGT definitely has an internal charge controller and overcharge protector so there is really no danger. Unless its a cheap chinese product that either has power surges (unlikely) or incorrect voltage (or extreme current like 5A or so...). To be sure, check the outputs with a multimeter.
Originally Posted by Declan79
Perhaps it could be considered
Has a same voltage(it said), using 4pcs AA battery, save us while far away from charging
sent from my 2.3.3|dxkg3 DJGalaxy S2
That is a TERRIBLE idea! I suggest you stop immediately! If you're unlucky you could really screw up electronic components in your tab. Unless I am missing something like voltage/current regulation in the battery adapter. Is there a pcb in the battery case or is it just wired directly to the usb? And have you ever actually done the math on the voltage? 1.5V x 4 = 6V or with rechargeables, 1.2 x 4 = 4.8V, not 5V!! Although a cell/battery alone usually won't mind that difference, you are sending electricity through complex electronics, not directly charging the battery. The Tab is expecting 5V exactly and stepping up/down the voltage accordingly (to 3.7 or 7.4V for the internal Li battery).
@ noguru: check your outputs with a multimeter,
@ Declan79: I suggest you stop using that contraption at once! (for your own good)
Galaxy Note II N7100 16GB Titanium Grey
Past primaries: Google Nexus 4 302K, Galaxy Note N7000, Nexus S i9023, Evo 3D, Galaxy Tab P1000, Galaxy S i9000, Acer S200 neoTouch, Omnia i900
Others: HTC HD2, Omnia 2 Pro B7610, Touch Pro 2/Rhodium, TyTn 2/Kaiser, G1/Dream, TyTn/Hermes,