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Does the IMP500 from imax power trigger the not compatible with iphone message when connected to the 3g? I understand that the device works regardless, but i only want to purchase items that have been "officially" made compatible with the iphone 3g. thanks.
 
Does the IMP500 from imax power trigger the not compatible with iphone message when connected to the 3g? I understand that the device works regardless, but i only want to purchase items that have been "officially" made compatible with the iphone 3g. thanks.

It doesn't trigger that message. I've used it to charge 3 full cycles so far, no error messages like that. Their package doesn't include that "Made for iPod/iPhone" seal just to let you know, but it works fine.
 
I just purchased the IMAX500. I am finding that the unit does not turn-off automatically (i.e the "use" light stays on), once the IPHONE 3G is fully charged. Is everyone seeing the same behavior? Can this damage the IPHONE 3G? Thanks.

I asked them, here's their response:

Hi,

This is normal. Since your iphone is on, it will need some minimum current to keep it on. This current will make led on for the charger. Its current is very low and it won't damage iphone.
For the 2nd question, it won't damage your battery also. Thanks

John
------Original Message------
From:
To: sales@imaxpower.com
Sent: Nov 24, 2008 12:20 PM
Subject: SPAM-LOW: About IMP500

Hi,

My name is _______ and I was wondering, because the battery pack doesn't turn off automatically after fully charging the iPhone, will that damage the iPhone if it is still connected?

One more question, if you're charging the battery pack through USB and since it doesn't turn off automatically as well after being fully charged, will that damage the battery pack if I left it plugged?

Regards,
______

Sent from my iPhone 3G






Sent via BlackBerry by AT&T
 
Just an update,

So I had this battery for a week and I must say I'm impressed. It can give your iPhone up to 4.5 times of fully charges battery. The external battery can be fully charged in a span of roughly 1.5hrs. The only flaw that I found with this battery is like what everybody said, there's no automatic turn off feature when the iPhone is fully charged, as well as when you're charging the battery itself. Other than that I'm impressed. I used it to play games on my iPhone so I don't have to be near a wall or computer.
 
Some update for imaxpower battery extender

It turn out that this battery pack can powerup G1 phone as well. Just order one mini-uSB from them. It works great so far. I plan to get 4-5 pcs for my friends as Christmas gift.:)
 
Some update for imaxpower battery extender

10 days ago I bought this imp500 from this online store

http://www.imaxpower.com

So far this battery pack worked really well with my 3G iphone and G1 phone. After fully recharged powerpack, we can use this battery pack to charge up 3G iphone by 4.7 cycles which is pretty much closed to 500%. I did an experiment, if charge iphone from 0% to 100% battery level, if use this powerpack, it will take less than 1.5 hours, if use iphone original AC wall charger, it will also take less than 1.5 hours. So the charging speed is very comparable.

Regarding the charging LED not off after fully charge, I also contacted them and they give me this reply, a very reasonable explanation. They told me this can be fixed very easily. I don't worry about this too much. Here is their reply regarding the LED issue, FYI...

*******************
The reason of LED (3 lights) was kept on after a fully charge up was to remind the user that iphone battery was fully charged. Therefore the current needed for keeping led light on is very small, which is less than 10mA. This current is so small that it can never never damage your 3G iphone. Therefore inside the powerpack, we put an current protection circuit, which will provent any possible current larger than iphone current limit. We have been measured the current 1000 times and it is very stable and safe

In fact, this LED can be automatically turned off if the users prefer it to be off after a fully charging up. Our engineer just need to adjust the LED trigger threshold a little bit to shut LED off after a fully charge up if this user's preference. We will change it next time.

Thanks for your understanding and feedback
http://www.imaxpower.com

**********************************
 
10 days ago I bought this imp500 from this online store

http://www.imaxpower.com

So far this battery pack worked really well with my 3G iphone and G1 phone. After fully recharged powerpack, we can use this battery pack to charge up 3G iphone by 4.7 cycles which is pretty much closed to 500%. I did an experiment, if charge iphone from 0% to 100% battery level, if use this powerpack, it will take less than 1.5 hours, if use iphone original AC wall charger, it will also take less than 1.5 hours. So the charging speed is very comparable.

Regarding the charging LED not off after fully charge, I also contacted them and they give me this reply, a very reasonable explanation. They told me this can be fixed very easily. I don't worry about this too much. Here is their reply regarding the LED issue, FYI...

*******************
The reason of LED (3 lights) was kept on after a fully charge up was to remind the user that iphone battery was fully charged. Therefore the current needed for keeping led light on is very small, which is less than 10mA. This current is so small that it can never never damage your 3G iphone. Therefore inside the powerpack, we put an current protection circuit, which will provent any possible current larger than iphone current limit. We have been measured the current 1000 times and it is very stable and safe

In fact, this LED can be automatically turned off if the users prefer it to be off after a fully charging up. Our engineer just need to adjust the LED trigger threshold a little bit to shut LED off after a fully charge up if this user's preference. We will change it next time.

Thanks for your understanding and feedback
http://www.imaxpower.com

**********************************

That's a more detailed explanation compared to the one they gave me above. Yup so far I'm happy with this battery pack. If only I can find this a pouch so the cables/ports will be in one solid place.
 
I got my Imax imp5000 yesterday, its pretty nice. Its alot smaller than i thought. I'm pretty happy with my purchase.
 
I bought this product, its got crazy power to spare. Looks nice and they have really good customer service to boot! No I dont work for them but its just nice to find a good product from an internet company. With the correct tips this will power any number of other devices, I use it to power my Nokia N82 phone as well. Buy one you wont be dissapointed.
 
IMP500 is way good!

I just received my IMAXPOWER IMP500 and am way happy. I previously had an iPWR battery that went on the bottom of my phone and required me to take off the case to charge from it. The IMP500 has 3x the power that had and no more taking off my case! I am way happy with this purchase! Thanks to all the users on here leading me in the right direction. This is a nice little unit with tons of power!

Just to answer a few questions I saw on here...

Physical size: 3.75" x 2.75" x .625"

*Currently working great on my iPhone 3G software 2.2.1 (NO ERROR MESSAGES)
 
I just received my IMAXPOWER IMP500 and am way happy. I previously had an iPWR battery that went on the bottom of my phone and required me to take off the case to charge from it. The IMP500 has 3x the power that had and no more taking off my case! I am way happy with this purchase! Thanks to all the users on here leading me in the right direction. This is a nice little unit with tons of power!

Just to answer a few questions I saw on here...

Physical size: 3.75" x 2.75" x .625"

*Currently working great on my iPhone 3G software 2.2.1 (NO ERROR MESSAGES)

Glad to hear that. You're welcome. That's what we're here for ;)
 
Imaxpower IMP500 Extended Battery Pack

I, like so many of you, was seeking a reasonable and convenient way to extend my iPod usage while traveling and without having to pack all those extras. I currently use my Imaxpower 5000mAh battery pack for traveling with my iPod Touch and my wife's iPod Nano. After a lengthy search for a convenient battery source for our iPods and my iPod Touch we came upon the Imaxpower battery pack IMP500. The web site videos were thorough, complete, and made the operation of charging or using while charging for our iPods very simple. After acquiring one, it is as simple as it appears and after two weeks of charge, play to expend, and recharge, it continues to work brilliantly, both for recharging and using while our iPods charge. On the older 40gb iPod Photo we got four full charges from one charge of the Imaxpower battery pack. While we have no photos only around 2000 songs, my play cycle is about 8 to 10 hours per charge. I am having similar positive results with my new 2nd generation 16gb iPod Touch. With several long distance airline trips in the near future, I can rest assured that we will be listening for many hours because of the Imaxpower IMP500. Best of all: Currently $59.00 which includes the adapter on their website. It works almost as long as you want to stay online or recharge it at intervals.
 
IMP500 wall charger?

Does anyone know--can the imp500 be charged with a wall charger. Doesn't seem to show one coming with it, only usb? Does it come with one?
thanks,
Gerry
 
Does anyone know--can the imp500 be charged with a wall charger. Doesn't seem to show one coming with it, only usb? Does it come with one?
thanks,
Gerry

Yes it can be charged with a wall charger (like the one your iPhone came with)

Online right now it says "FREE AC Charger"
 
Imax Power Battery-so far, so good

I travel and fly a lot and I was constantly draining my phone before I got off the plane. The iMax is the only battery I've found that really has juice to spare for running and charging the iPhone.

This battery allows me to use the iPhone for many hours and still leave the plane with a charged phone. I also use the battery to charge the phone if I am at a gig or other public place. Rather than plug it into an outlet, out in the open, I’ll leave my phone in my case out of sight, charging discreetly. Anytime I find myself stationary for a while, I pull out the external battery and use it, leaving my phone more topped off for when I’m on the move.

This battery has worked flawlessly for me so far (about a month of pretty heavy use). The phone’s automatic charge status works perfectly, (letting me know when the phone has received a full charge, just like it does with the Apple AC charger). The battery has never gotten hot or malfunctioned. For the price, it’s incredibly convenient. I never have to think about conserving my battery power anymore just to get through the day. I'm liking it lots and just won’t travel without it.
 
Happy Happy

Thank you for the perfect gift for my son. Although there were some delivery problems, I contacted you and was immediately sent another battery extender. My son couldn't be happier!!!!! It does everything he wanted and more. Very convient for a person on the go!!! I look forward to future business with Imaxpower.

Lee :D
 
I found a perfect 3Gs iphone battery!

Just got my new 3Gs iPhone last week. Not happy with the battery life especially with 3.0 firmware loaded with new phone. Battery drain like crazy. Friend recommended me to try this imaxpower imp500, received within 3 days and tried it over the weekend and found I can recharge 3Gs iphone with imp500 by more than 3.5 times, close to 4 times! Now I can enjoy 3Gs iphone more than my 3G iphone because of new video ability, battery life is fine with this backup battery. Very happy buyer. give it a try
http://www.imaxpower.com
 
Sorry for late. Not easy to discharge all battery of my iphone and imaxpower.

I charged imaxpower battery from 8:40am this morning from empty (no any power light) by adapter.

I checked the status on 2:19pm, the LED from low to high all light up. I didn't read the user manual, not sure why the light was still flash, but it looks full, not sure whether it is 100% full. anyway I stop the charging.
-- 3 hrs 30 minutes (may not be accurate)

2:19pm, I start to charge my IPHONE(v2.0 ) from 0%battery (not functional anymore) by connecting to imaxpower. The iphone battery was full when I checked it at 3:50pm.
--- 2:19pm to 3:50pm, within 90minutes, iphone has been fully charged. Cool

the LED on imaxpower batery from low to high are still lighting up.

Maybe you want to know how many times can this battery to charge iphone from empty to full. I will keep you updated if I have the data. but not today, not this week I think.

I am using 2G Iphone. My brother has 3G. But it is hard to get this kind of experiment data from his phone.

Somethings fishy. Same English as Youtube reviewer and the iPhone must be plugged into wall outlet if at 0%. Additionally, the time doesn't match with a) USB recharge time b) wall rechrge time c) the person who independently uses one below.

Employees should disclose there interests when writing reviews.
 
my only complaint about the imax is the plug tends to pull out of the unit with little effort. so if it is in your pocket or where it gets bumped it may not be charging. I fixed with some tape on the usb plug. Plus I am using a older locking apple cable a the one that came with the imax would come out of the phone.
 
Just an update:

If you guys read the first page, you'd notice I purchased mine back in Nov '08. Let me tell you up till now I still constantly use it and it still charges my iPhone 3G upto 3.5 times which is pretty cool for that price. Highly recommended for all those who can't live up to the end of the day with an iPhone.
 
Hello guys,
I have a question about IMP500 for you.
Let us say my iPhone still has 10% battery life can I just plug it into the IMP500 and use it or I have to wait until it is fully recharged?


Thanks
 
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