How about because this is a 4400 MaH battery? Quick math: 25w charger @ 5 watt Hour maximum charge rate on a 4400MaH battery...
yep, bout 4-5 hours.
btw your iphone battery has a fraction of that wattage.
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Ipad 2 charging extremely slow
- Thread starter richard371
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How about because this is a 4400 MaH battery? Quick math: 25w charger @ 5 watt Hour maximum charge rate on a 4400MaH battery...
yep, bout 4-5 hours.
btw your iphone battery has a fraction of that wattage.
Without reading too much into the whole thread, is it ok to charge my iPhone using the iPad wall adapter? Coz I've noticed it charges quite fast!
Yes, but it won't charge faster. You can make lithium-ion's charge slower but you can't make them charge faster than the control circuits will allow.
While I don't notice it charging faster, in the morning my iPhone felt like it was in the oven! And I could swear that my iPhone (4) had never been that hot before. Even when playing Infinity Blade or other games.
Correct me if I'm wrong but all the cable for each device are the same. If u buy one on the apple store, there aren't separate power cables for the pads and phones and pods. There's one for Each.
Yes, but the Apple Store stocks the latest version cable. There are a lot of older 3rd party cables that cannot pass though 10w of power b/c they don't have the current correct internal pin set. The cables look the same externally but Apple is constantly changing the internal pins as a "thank you" to knock off companies not part of the iPod/iPhone/iPad accessory program. I have a bunch of older cables from iPhones, iPods, and knock off cos. that will not fast charge the iPad. Only the supplied cable will do that.
Ok thanks for the info. I didn't know that. It does bring up one final question for me. I have a year old third Party iphone4 car charger. Based on what u just wrote, I understand that this charger might nOt fast charge my ipad2 but is it safe to use it at all with the ipad2? I don't mind a slow charge, I do mind hurting the battery by using a sub-par charger.
it's the cable
I posted an article about this last year, there are two issues, how much power your USB port can supply and Apple's cable is insufficient to carry 2.1 amps and wastes as much as 30% of it's power. There is also a link to drivers if you have a PC where you can get a faster charge by changing the USB drivers.
If your Mac has the higher power ports, you are still wasting 30% with the stock cable and remember the power on the port is shared by a few ports usually, so you might be dividing your available power. Cheers.
-john spade
I posted an article about this last year, there are two issues, how much power your USB port can supply and Apple's cable is insufficient to carry 2.1 amps and wastes as much as 30% of it's power. There is also a link to drivers if you have a PC where you can get a faster charge by changing the USB drivers.
If your Mac has the higher power ports, you are still wasting 30% with the stock cable and remember the power on the port is shared by a few ports usually, so you might be dividing your available power. Cheers.
-john spade