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Customer Review
Reviewed in the United States on August 20, 2013
I have tested over 100 battery packs of different sizes, capabilities and capacities and so far this one is the new top performer in capacity and one of the top performers in efficiency. Yes it is big at 1 pound and 12 ¾ ounces but it delivers the highest output of mAh I have tested at 26,157.5 mAh and an efficiency of 81.74 %. That is enough to charge your iPhone 18.4 complete times!
The unit features two USB ports with one rated at 2.1 amps and the second rated at 1 amp. It also has a programmable voltage output port that can be set to output 9 V, 12 V, 16 V, 19 V and 20 VDC at 4.5 amps. If you are a student in school who can't get to an AC wall charger, a business person always on the go or an outdoors person who needs a reliable power source then this is the battery pack for you. You cannot ask for better performance and capacity at this time from a USB battery pack. Not only can you charge you USB devices you can also charge your laptops like Sony, Acer, Lenovo, Toshiba, ASUS, HP, Samsung, or Dell.
I have included a video of the battery's features and I hope it is helpful to you. When I test a battery I do an extensive set of tests that fully charges the battery and then I use it to charge devices and make sure that it is fully depleted when my tests are done. I time each test and document the results as the test progresses. I then calculate the mAh of capacity that the battery supplied and I then calculate its charging efficiency. This process takes from 3 hours to, in very large batteries, about a day for testing. I don't take any short cuts or guess and every battery has these tests performed on it and documented. This is to assure that the battery is tested and it performs well. If a battery has performed poorly I then run the tests again to verify the results.
This battery pack was so powerful I actually charged my smart devices for 24 hours of charging time and the test took me two days to complete.
The battery pack comes with a full supply of accessories for your use.
What's in the box?
* The battery pack
* The battery pack comes with an instruction manual
* The battery comes with an AC wall charger that is rated at 100 to 240 VAC and 50/60 Hz. Its output is 18.5 VDC at 2 Amps. I was able to charge a fully depleted battery from 0% to 99% in 6 hours and at 7 hours it was 100%. The AC power cord is 32 inches long and the output power cable is 50 inches long.
* One charging cable for laptop computers that is 28.5 inches long
* 10 laptop connection adapters.
* One charging cable for your smart phones.
* 4 smart phone connection adapters.
Poweradd LE030 32000mah portable external battery features:
* A massive 32000 mAh capacity specification
* The unit is compact in size and weighs in at 1 pound and 12 3/4 ounces.
* It is attractively designed.
* There is a beautifully designed backlit LCD display that indicates the battery charge level with a bar graph Icon and a digital percentage display. The percentage display is the most accurate and linear indication of the battery charge level that I have ever seen on a battery pack. The digital display also shows the output voltage that you have selected for the laptop output.
* This is the most powerful battery pack that I have tested as well as one of the top performers in efficiency.
* There are two USB power output ports. One USB port is rated at 5 VDC at 2.1 Amps and the other is rated at 5 VDC at 1 Amp.
* There is also an output port that can be used to charge your laptop computers with 9 V, 12 V, 16 V, 19 V and 20 VDC at 4.5 Amps.
* There is an ON button to allow you to check the existing charged battery capacity available. You must also press the on button to start the charging process of your device.
* The battery uses Lithium Polymer battery technology.
* The battery pack can be recharged 500+ times
* Warranty is 12 months
* If you press and hold the on button for a few seconds the V on the laptop power voltage display flashes. You can then press the button multiple times to select the output voltage that you want to use and after you set the right voltage just wait about 3 seconds and the display shuts off and that voltage locks in.
* The laptop connectors are marked to help you find the proper connector for your computer.
Cautions
* Select the proper connector for your laptop
* Set the proper voltage required by your laptop
* DO NOT Plug in the battery pack's DC Out port into the DC In port!
Test charging devices to measure the output capacity:
Start iPad 3 at 36% and an iPhone 4 at 58% and the battery pack at a 100% charge and charge both items at the same time.
* 30 min the iPad at 40%, iPhone 4 at 87% and the battery pack at 96%
* 60 min the iPad at 45%, iPhone4 at 98% and the battery pack at 94%
* 90 min the iPad at 49%, iPhone4 at 100% and the battery pack at 92%
* 120 min the iPad at 57% and the battery pack at 88%
* 150 min the iPad at 66% and the battery pack at 84%
* Charge iPad and another iPhone 4 at 56% over night and the next morning both the iPad 3 and the iPhone were at 100% and the battery pack was at 59%
NOTE: before I could start test charging the Kindle Fire the battery pack raised its charge from 59% to 65% in less than 5 minutes!
Kindle Fire at 22% and the battery pack at 65%
* 30 min 35% battery at 61%
* 60 min 47% battery at 58%
* 90 min 59% battery at 55%
* 120 min 72% Battery at 52%
* 150 min 83% battery at 50%
* 180 min 87% battery at 49%
* 210 min 100% battery at 49%
iPad 2 at 54% battery at 49%
* 30 min 63% battery at 47%
* 60 min 73% battery at 44%
* 90 min 82% battery at 42%
* 120 min 90% battery at 40%
* 150 min 96% battery at 39%
* 180 min 100% battery at 37%
iPad 3 at 35% battery at 37% charging overnight
* iPad 3 at 100% charged and the battery pack at LO reading on battery
When I unplugged from iPad 3 the battery pack jumped from the LO reading to 7% so I continued testing.
iPhone 4 at 65% battery at 7%
* 30 min iPhone at 88% battery at 6%
* 60 min iPhone at 97% battery at 6%
* 90 min iPhone at 100% battery at 6%
A second iPhone 4 at 62% battery at 6%
* 30 min iPhone at 88% battery 6%
* 60 min iPhone at 100% battery at 5%
iPad 2 at 43% battery at 5%
* 30 min iPad 2 at 58% battery at 5%
* 60 min iPad 2 at 66% battery at 5%
* 90 min iPad 2 at 77% battery at 2%
* 120 min iPad 2 at 77% battery dead
Test results summary:
This is an outstanding result at 81.74% and one of the best that I have seen. This battery is truly a monster power source that can keep your smart devices and computers going strong for a long time.
* iPad 3 at 64% x 11560 = 7398.4 mAh
* iPhone 4 at 42% x 1420 = 596.4 mAh
* iPhone 4 at 44% x 1420 = 624.8 mAh
* Kindle Fire at 78% x 4400 = 3432 mAh
* iPad 2 at 46% x 6944 = 3194.24 mAh
* iPad 3 at 65% x 11560 = 7514 mAh
* iPhone 4 at 35% x 1420 = 497 mAh
* iPhone 4 at 38% x 1420 = 539.6 mAh
* iPad 2 at 34% x 6944 = 2360.96 mAh
* 2360.96+539.6+497+7514+3194.24+3432+624.8+596.4+7398.4 = 26,157.5 mAh/32,000 mAh = 81.74% efficiency
This is a table that I include in most of my battery reviews to help you understand what some common devices require for a full charge. it will help you select what size of power pack battery you will need for your devices.
Limitations of device charging:
* iPhone 4 battery 1,420 mAh battery capacity
* iPhone 4S battery 1,432 mAh battery capacity
* iPad 2 battery 6,944 mAh battery capacity
* iPad 3 battery 11,560 mAh battery capacity
* Kindle Fire battery 4400 mAh capacity
* Kindle Keyboard battery 1750 mAh capacity
* iPhone 5 is 3.8 VDC at 5.45 Wh = 1434 mAh battery
* iPad 4 battery is 11,486 mAh 3.7 VDC at 42.5 Wh
* iPad Mini battery is 4490 mAh at 3.72 VDC 16.7 Wh
As you can see the battery will fully charge a totally dead iPad 2 or an iPad 3 or 4 because it contains 32000 mAh of capacity. You have to consider the losses in the charging circuits of both the battery pack and the device you are charging. Energy is lost during the voltage conversion, used by the electronics of the battery pack and your device and by the generation of heat.
Real world charging capabilities of the Poweradd LE030 32000mah Portable External Battery:
* iPhone 4 or 5 approximately 18.42 full charges out of a fully charged battery pack.
* iPad 2 approximately 377% of a full charge
* iPad 3 or 4 approximately 226% of a full charge
* iPad Mini approximately 583% of a full charge
* Kindle Fire approximately 595% of a full charge
* A normal estimated usable storage is 70% of capacity or .70 * 32000 mAh = 22400 mAh charging capacity available for your electronic devices.
* In my testing I was able to use approximately 26,157.5 mAh of capacity or roughly 81.74% of the 32,000 mAh capacity. This is a spectacular performance for this battery.
This is a great product and I strongly recommend it for the real power users out there. It is a bit heavy but it really performs well! I rate this battery pack at 5+ stars.
I was supplied a sample for test and evaluation and I promised a fair and honest review.
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The unit features two USB ports with one rated at 2.1 amps and the second rated at 1 amp. It also has a programmable voltage output port that can be set to output 9 V, 12 V, 16 V, 19 V and 20 VDC at 4.5 amps. If you are a student in school who can't get to an AC wall charger, a business person always on the go or an outdoors person who needs a reliable power source then this is the battery pack for you. You cannot ask for better performance and capacity at this time from a USB battery pack. Not only can you charge you USB devices you can also charge your laptops like Sony, Acer, Lenovo, Toshiba, ASUS, HP, Samsung, or Dell.
I have included a video of the battery's features and I hope it is helpful to you. When I test a battery I do an extensive set of tests that fully charges the battery and then I use it to charge devices and make sure that it is fully depleted when my tests are done. I time each test and document the results as the test progresses. I then calculate the mAh of capacity that the battery supplied and I then calculate its charging efficiency. This process takes from 3 hours to, in very large batteries, about a day for testing. I don't take any short cuts or guess and every battery has these tests performed on it and documented. This is to assure that the battery is tested and it performs well. If a battery has performed poorly I then run the tests again to verify the results.
This battery pack was so powerful I actually charged my smart devices for 24 hours of charging time and the test took me two days to complete.
The battery pack comes with a full supply of accessories for your use.
What's in the box?
* The battery pack
* The battery pack comes with an instruction manual
* The battery comes with an AC wall charger that is rated at 100 to 240 VAC and 50/60 Hz. Its output is 18.5 VDC at 2 Amps. I was able to charge a fully depleted battery from 0% to 99% in 6 hours and at 7 hours it was 100%. The AC power cord is 32 inches long and the output power cable is 50 inches long.
* One charging cable for laptop computers that is 28.5 inches long
* 10 laptop connection adapters.
* One charging cable for your smart phones.
* 4 smart phone connection adapters.
Poweradd LE030 32000mah portable external battery features:
* A massive 32000 mAh capacity specification
* The unit is compact in size and weighs in at 1 pound and 12 3/4 ounces.
* It is attractively designed.
* There is a beautifully designed backlit LCD display that indicates the battery charge level with a bar graph Icon and a digital percentage display. The percentage display is the most accurate and linear indication of the battery charge level that I have ever seen on a battery pack. The digital display also shows the output voltage that you have selected for the laptop output.
* This is the most powerful battery pack that I have tested as well as one of the top performers in efficiency.
* There are two USB power output ports. One USB port is rated at 5 VDC at 2.1 Amps and the other is rated at 5 VDC at 1 Amp.
* There is also an output port that can be used to charge your laptop computers with 9 V, 12 V, 16 V, 19 V and 20 VDC at 4.5 Amps.
* There is an ON button to allow you to check the existing charged battery capacity available. You must also press the on button to start the charging process of your device.
* The battery uses Lithium Polymer battery technology.
* The battery pack can be recharged 500+ times
* Warranty is 12 months
* If you press and hold the on button for a few seconds the V on the laptop power voltage display flashes. You can then press the button multiple times to select the output voltage that you want to use and after you set the right voltage just wait about 3 seconds and the display shuts off and that voltage locks in.
* The laptop connectors are marked to help you find the proper connector for your computer.
Cautions
* Select the proper connector for your laptop
* Set the proper voltage required by your laptop
* DO NOT Plug in the battery pack's DC Out port into the DC In port!
Test charging devices to measure the output capacity:
Start iPad 3 at 36% and an iPhone 4 at 58% and the battery pack at a 100% charge and charge both items at the same time.
* 30 min the iPad at 40%, iPhone 4 at 87% and the battery pack at 96%
* 60 min the iPad at 45%, iPhone4 at 98% and the battery pack at 94%
* 90 min the iPad at 49%, iPhone4 at 100% and the battery pack at 92%
* 120 min the iPad at 57% and the battery pack at 88%
* 150 min the iPad at 66% and the battery pack at 84%
* Charge iPad and another iPhone 4 at 56% over night and the next morning both the iPad 3 and the iPhone were at 100% and the battery pack was at 59%
NOTE: before I could start test charging the Kindle Fire the battery pack raised its charge from 59% to 65% in less than 5 minutes!
Kindle Fire at 22% and the battery pack at 65%
* 30 min 35% battery at 61%
* 60 min 47% battery at 58%
* 90 min 59% battery at 55%
* 120 min 72% Battery at 52%
* 150 min 83% battery at 50%
* 180 min 87% battery at 49%
* 210 min 100% battery at 49%
iPad 2 at 54% battery at 49%
* 30 min 63% battery at 47%
* 60 min 73% battery at 44%
* 90 min 82% battery at 42%
* 120 min 90% battery at 40%
* 150 min 96% battery at 39%
* 180 min 100% battery at 37%
iPad 3 at 35% battery at 37% charging overnight
* iPad 3 at 100% charged and the battery pack at LO reading on battery
When I unplugged from iPad 3 the battery pack jumped from the LO reading to 7% so I continued testing.
iPhone 4 at 65% battery at 7%
* 30 min iPhone at 88% battery at 6%
* 60 min iPhone at 97% battery at 6%
* 90 min iPhone at 100% battery at 6%
A second iPhone 4 at 62% battery at 6%
* 30 min iPhone at 88% battery 6%
* 60 min iPhone at 100% battery at 5%
iPad 2 at 43% battery at 5%
* 30 min iPad 2 at 58% battery at 5%
* 60 min iPad 2 at 66% battery at 5%
* 90 min iPad 2 at 77% battery at 2%
* 120 min iPad 2 at 77% battery dead
Test results summary:
This is an outstanding result at 81.74% and one of the best that I have seen. This battery is truly a monster power source that can keep your smart devices and computers going strong for a long time.
* iPad 3 at 64% x 11560 = 7398.4 mAh
* iPhone 4 at 42% x 1420 = 596.4 mAh
* iPhone 4 at 44% x 1420 = 624.8 mAh
* Kindle Fire at 78% x 4400 = 3432 mAh
* iPad 2 at 46% x 6944 = 3194.24 mAh
* iPad 3 at 65% x 11560 = 7514 mAh
* iPhone 4 at 35% x 1420 = 497 mAh
* iPhone 4 at 38% x 1420 = 539.6 mAh
* iPad 2 at 34% x 6944 = 2360.96 mAh
* 2360.96+539.6+497+7514+3194.24+3432+624.8+596.4+7398.4 = 26,157.5 mAh/32,000 mAh = 81.74% efficiency
This is a table that I include in most of my battery reviews to help you understand what some common devices require for a full charge. it will help you select what size of power pack battery you will need for your devices.
Limitations of device charging:
* iPhone 4 battery 1,420 mAh battery capacity
* iPhone 4S battery 1,432 mAh battery capacity
* iPad 2 battery 6,944 mAh battery capacity
* iPad 3 battery 11,560 mAh battery capacity
* Kindle Fire battery 4400 mAh capacity
* Kindle Keyboard battery 1750 mAh capacity
* iPhone 5 is 3.8 VDC at 5.45 Wh = 1434 mAh battery
* iPad 4 battery is 11,486 mAh 3.7 VDC at 42.5 Wh
* iPad Mini battery is 4490 mAh at 3.72 VDC 16.7 Wh
As you can see the battery will fully charge a totally dead iPad 2 or an iPad 3 or 4 because it contains 32000 mAh of capacity. You have to consider the losses in the charging circuits of both the battery pack and the device you are charging. Energy is lost during the voltage conversion, used by the electronics of the battery pack and your device and by the generation of heat.
Real world charging capabilities of the Poweradd LE030 32000mah Portable External Battery:
* iPhone 4 or 5 approximately 18.42 full charges out of a fully charged battery pack.
* iPad 2 approximately 377% of a full charge
* iPad 3 or 4 approximately 226% of a full charge
* iPad Mini approximately 583% of a full charge
* Kindle Fire approximately 595% of a full charge
* A normal estimated usable storage is 70% of capacity or .70 * 32000 mAh = 22400 mAh charging capacity available for your electronic devices.
* In my testing I was able to use approximately 26,157.5 mAh of capacity or roughly 81.74% of the 32,000 mAh capacity. This is a spectacular performance for this battery.
This is a great product and I strongly recommend it for the real power users out there. It is a bit heavy but it really performs well! I rate this battery pack at 5+ stars.
I was supplied a sample for test and evaluation and I promised a fair and honest review.
