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Energizer Case Doubles iPhone 4 Battery Life

Maura

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CNET’s Crave blog today features Energizer’s AP1201 iPhone 4 case which also contains a rechargeable battery. The case/charger uses a Micro-USB port, and you can choose to either quick-charge just the iPhone 4, or simultaneously charge both the phone and the case. According to Energizer, the case, which is made out of a mixture of hard plastic and recycled silicon rubber, should give you seven extra hours of video playback and Internet browsing, plus an extra 4.8 hours of talk time on 3G. Essentially though, the main figure that you need to know is that it almost doubles the iPhone 4’s battery life.

While these dual charger/case units have always seemed like a good idea in theory, in the past they’ve often simply been too bulky, but CNET says that the case is actually quite lightweight and thin. The AP1201 is priced at $69.99, and if you want to find out more about it, you can check out the Energizer website link below.

Source: CNET, Energizer
 

bknewtype

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so how exactly does this work? when does the battery unit on the case power on? is it constantly on and running the same time as the phone? or does it kick in when the phone battery itself drains?
 

Bluering

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CNET’s Crave blog today features Energizer’s AP1201 iPhone 4 case which also contains a rechargeable battery. The case/charger uses a Micro-USB port, and you can choose to either quick-charge just the iPhone 4, or simultaneously charge both the phone and the case. According to Energizer, the case, which is made out of a mixture of hard plastic and recycled silicon rubber, should give you seven extra hours of video playback and Internet browsing, plus an extra 4.8 hours of talk time on 3G. Essentially though, the main figure that you need to know is that it almost doubles the iPhone 4’s battery life.

While these dual charger/case units have always seemed like a good idea in theory, in the past they’ve often simply been too bulky, but CNET says that the case is actually quite lightweight and thin. The AP1201 is priced at $69.99, and if you want to find out more about it, you can check out the Energizer website link below.

Source: CNET, Energizer

I bought one like that on ebay, but it was a generic one, so I guess, the energizer would be better. I love it, I can use a mini USB cable to charge both the case-battery and the iphone battery and if I am away from home and the iphone battery is going low, you just have to switch the case on and it charges your iphone battery. It is a beauty and you can also use a mini USB cable with itunes and stop using the Apple cord to charge your phone or sync with itunes and it also protects your phone.
 

Bluering

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That Energizer product is a joke. It has no switch to turn it off once it is fully charged. So, it remains on all the time and becomes flat in a matter of one or two hours. What is the point of having a backup battery if it is most of the time flat? It is a useless product, don't waste your money on it.
 

johnhunt3055

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Hello, I am looking for a new energizer for my cell phone. It got damaged in the rain last month, tried to find everywhere but someone told me to come over to internet, it might help you to get your energizer.

energizer
 

DaveM

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That Energizer product is a joke. It has no switch to turn it off once it is fully charged. So, it remains on all the time and becomes flat in a matter of one or two hours. What is the point of having a backup battery if it is most of the time flat? It is a useless product, don't waste your money on it.

In order to discharge there has to be a load on the battery. The load on the combination of the two batteries remains the same as the load on the iPhone's original battery. With the total battery capacity increased the total phone use time increases. There's no reason or need for an on/off switch. The battery will not drain in one or two hours.
 

bab2010

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In order to discharge there has to be a load on the battery. The load on the combination of the two batteries remains the same as the load on the iPhone's original battery. With the total battery capacity increased the total phone use time increases. There's no reason or need for an on/off switch. The battery will not drain in one or two hours.

There is sure a need to have a switch to turn on or off the battery case. The external battery case should be the last one to run out, not the first one to run out. And if there isno switch, it means that the battery case will drop first.
 

DaveM

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There is sure a need to have a switch to turn on or off the battery case. The external battery case should be the last one to run out, not the first one to run out. And if there isno switch, it means that the battery case will drop first.

Why? Why should the external case be the last to run out?
 

bab2010

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There is sure a need to have a switch to turn on or off the battery case. The external battery case should be the last one to run out, not the first one to run out. And if there isno switch, it means that the battery case will drop first.

Why? Why should the external case be the last to run out?

If you understand the meaning of external, then you understand the it's the last one to run out. Do you have a laptop? Yes, do you have 2 batteries? Yes, then when the one plug in runs out, you will plug in the external one and the will be the last to run out. It's a matter of logic, the opposite can also be done with these cases, but then there are waist of energy since the case have no switch to turn off or on the flow of energy to the device. But when it have a off on switch, then you can restore full energy to the internal battery with minimum lost of energy.
 

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Well it looks like this Eveready is built as a case that the phone is inserted "permanently" into. If so, then they become one unit. It's not something that's external or internal, and you don't plug one in and out of the other. But however it's done there's no waste or loss of energy. Whether you use up the iPhone's battery first or last, all of both batteries' energy goes into powering the phone. Together or separately, either one first or last, the two batteries are going to power the phone for x number of hours - the same number of hours.
 

bab2010

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Well it looks like this Eveready is built as a case that the phone is inserted "permanently" into. If so, then they become one unit. It's not something that's external or internal, and you don't plug one in and out of the other. But however it's done there's no waste or loss of energy. Whether you use up the iPhone's battery first or last, all of both batteries' energy goes into powering the phone. Together or separately, either one first or last, the two batteries are going to power the phone for x number of hours - the same number of hours.

Ok then :)
 
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