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Comparison Samsung EB-P3000 vs Samsung EB-PA500U

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Samsung EB-P3000
Samsung EB-PA500U
Samsung EB-P3000Samsung EB-PA500U
from £69.00 
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from $31.16 up to $39.96
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Battery capacity10000 mAh5200 mAh
Battery typeLi-IonLi-Ion
Charging gadgets (outputs)
USB-A11
Power bank charging
Power bank charging inputs
microUSB
microUSB
Power bank charge current via USB
2 А /5 V/
1 А /5V/
Features
Bundled cables (adapters)
microUSB
microUSB
General
Body materialplasticplastic
Dimensions148x71x15 mm71x141.6x9.8 mm
Weight240 g143 g
Color
Added to E-Catalognovember 2017september 2015

Battery capacity

The higher the battery capacity, the more energy the power bank is able to accumulate and then transfer when charging to gadgets connected to it. But it should be borne in mind that not all of the accumulated energy goes specifically to charging – part of it is spent on service functions and inevitable losses in the process of transmission. So in the specifications, the real capacity of the power bank is also often specified. If there is no data on real capacity, then when calculating it is worth proceeding from the fact that it is usually somewhere 1.6 times lower than the nominal one. For example, for a model with a nominal capacity of 10,000 mAh, the actual value will be approximately 6300 mAh.

As for the specific values of the nominal capacity, then in models with the lowest performance it is 5000 – 7000 mAh and even less ; such power banks are suitable as a backup source of energy for 1 – 2 smartphone charging with a not very capacious battery or other similar gadget. The 10,000 mAh solutions are the most popular nowadays – in many cases, this option provides the best price-capacity ratio. The 20,000 mAh and 30,000 mAh options are also very common. But even a capacity of 40,000 mAh or more, thanks to the development of modern...technology, is quite common.

Power bank charge current via USB

Nominal charge current supported by the power bank when charging its own battery via microUSB, USB type C, or Lightning (see "Battery charging inputs").

This is the maximum and, in fact, the recommended power bank charge current. If the amperes supplied by the power source exceed this value, the charge current will still be limited by the built-in controller to avoid overloading. And using a charger with a lower output current, in turn, will lead to an increase in charging time.

Data on the charge current via USB (Lightning) is especially important due to the fact that modern power banks are usually not equipped with their own chargers for these inputs, and energy sources must be separate. On the other hand, if a high charging speed is not critical for you, you can ignore this parameter: any USB connector is suitable as a power source for the corresponding power bank inputs.
Samsung EB-P3000 often compared
Samsung EB-PA500U often compared