battery and charging issues

[Jonathan]

If you are trying different chargers/leads it best to use one of those USB volt/ammeters to check you are getting the full power you need out of the charger. There are different ways that that chargers/devices negotiate the higher charging current (sometimes higher voltage too) and they are often not compatible. If the original lead/charger didn’t work and others failed too it’s suggesting an issue with the tablet, but still I think it’s worth using a meter to be sure.

Oh, and by the way, don’t expect to see a 5v 2A charger delivering 2A because the charging circuit in the tablet will charge the battery at different rates depending on its current level of charge.

[Anonymous]

Hello, you need a good USB cable, capable of delivering over 1 A of current.  I have tested Anker, Aukey and several cables with AWG22 wires, they deliver 1.4 – 2.2 A to the tablet and are able to keep it charged under light – medium load.  Screen backlight limit is 50%, over there you’re not able to keep the tablet charged. CPU can be bussy, but not at turbo, about 3 -4 W.

I can use the tablet to read PDF or PPT while charged, it even charges, about 1% every few minutes. But you have to use a good charge and a good cable.

[Author]

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