Why dose my Kindle tale a long time to charge
Every time I charge my Kindle it takes hours to charge why
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Hi,
It's all in the maths. Your Kindle Fire HD 7" has a 4000 mAH battery.
If you are using the charger that came with it, it has a 1000 mAH output.
As a rule of thumb, not quite strictly true but close enough, with these figures it could take up to 4 hours to charge the battery from flat to fully charged.
(4000 mAH divided by 1000 mAH = answer in hours)
A lot depends on how low the battery was when it was started to be charged and also its' age. The older a battery gets (the number of times it has been recharged) affects its ability to fully charge and to hold its' charge.
If you were charging it with a PC connection (500 mAH ) then it could potentially take up to 8 hours to fully charge. (4000 mAH divided by 500 mAH = answer in hours)
Do not be tempted to charge using a charger with a higher output voltage and/or current than what is recommended by the a) battery manufacturer and b) device manufacturer, as the battery could overheat and either be damaged or even explode or start a fire.
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I have too many chargers to keep straight. How can I tell which charger came with the kindle?
Hi Hi @bval ,
Amazon don't make it easy.
According to this link for > 4th Gen Fire tablets, for North America they provided two types of chargers.
One is +5VDC @1A (or 1000mA) and the other is a fast charger which supplies +5VDC @ 1.8A (or 1800mA)
They also mention a fast charger for International use but do not specify the charging current. Presumably it will also be +5VDC @ 1.8A (1800mA).
I suspect that you probably got the +5VDC @ 1A charger with your tablet. ( charger output should be printed/stamped on the charger)
As long as you don't exceed +5VDC @ 1.8A you should be OK.
