I had been looking for something like this for a while when I found some information on Lynn Terry’s website about a different model of this product. When I switched from the iPhone 3GS to the iPhone 5, I knew the battery life would be a little different because of LTE, if nothing else. I looked at the model that Lynn talked about and wanted to see if there was a little that had a little more capacity that wouldnt cost a lot more. Since I was looking at this to be able to also recharge my iPad, getting a little more capacity was even more important. After doing some digging on Amazon.com, I found the PGMPP8400. Barely bigger than a pack of cigarettes, it has two different USB outlets so that you can charge more than one device at a time.
What I liked about the six of the PGMPP8400 was that I could get it to fit snuggly in a Pelican 1010 case and hold all of the cables that came with it as well as the USB to Lightning cable needed to charge my iPhone 5. Keeping the PowerGen battery in a case serves several purposes. It keeps the flashlight that comes as an added bonus with the PowerGen from being accidentally turned on or something happen to shorting across one or more of the connectors that are on the device.
These are the results I experienced with charging either my iPhone5 or iPad. I started with a fully charged PGMPP8400. I would suggest that as indicated in the instructions that you do the same before using the device for the first time. I haven’t had a lot of time to work with the PowerGen but if you don’t use if for about a month, I would suggest that you give it a charge before you need to use it in a critical situation. No charger is sent with the device. The instructions say that you can charge it from a USB equipped device. I used one of my iPad charging cubes without any problems.
This testing started with a fully charged PGMPP8400
1) iPhone5 80% battery, charge time about 30 minutes with light usage on iPhone5 while charging.
2) iPad (1st Gen) 97% battery, charge time about 10 minutes, with an update running for 14 apps.
3) iPhone5 45% battery, change time about 2 hour with minimal usage, mostly checking screen about every 5 to 10 minutes to check charge status. sat at 99% for about 30 minutes before it went to 100%. After this charging session, the 4th light “full charge” started to go off periodically indicating that I was start to drain the battery just a bit
4) iPhone5 74% battery, Charge time about 1 hour 15 minutes, minimal usage on iPhone during charge, mostly checking charge level, Powergen briefly had all 4 lights on, went to 3 almost immediately. After about 20 minutes, 3rd light went out but came back on after about 10 minutes. Went off and off periodically after that. Suspect the batter was starting to get a little low. Tried to get a feel for how linear the 4 lights are to the actual level of the battery. Noticed the phone stayed at 98% charge a little longer before it went to 99%, stayed at 99% for a bit and then went to 100%
Both times after disconnecting the load from the PowerGen device, shut off occurred about 30 seconds +\- after that. Manual indicated 20 seconds. I am not concerned about that with that minor of a difference. I am happy that the device shut off on its own at all. I had hoped to be a smaller/less expensive device but being able to almost fully recharge an iPad once or the iPhone 5 a couple of times is worth the difference in size and cost. The size of the manual and mostly the small font size used makes it a little challenging for those of use who are a little older to easily read the instructions. Other than that, this is a device that I can recommend for purchase consideration.