Intenso Slim S10000

Test 08/2019

  • Intenso Slim S10000 - testing
  • Intenso Slim S10000 - front
  • Intenso Slim S10000 - boxed
  • Intenso Slim S10000 - detail
  • Intenso Slim S10000 - detail2
  • Intenso Slim S10000 - intenso-heat
  • Intenso Slim S10000 - intenso-messung
Test seal: Intenso Slim S10000, Rating 8.2

last modified: 11.10.2019, 10:27

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All rating criteria details:

Usable capacity 45%
Range of functions 25%
Workmanship 15%
Size capacity ratio 15%
Tested by: Philipp


Product tester


The Intenso S10000 is a solid power bank with slight flaws in its workmanship. A positive aspect is the portion of usable capacity. This power bank has only one USB output, but together with the integrated micro-USB cable, two devices can be charged simultaneously. All in all, this product convinced us in our tests.


  • Integrated charging cable
  • 87% of capacity usable


  • Strong heating during discharging
  • 2.6 A maximum current

360° View

Reliable power bank, but small flaws in workmanship and strong heating during discharging.

Particular feature

The Intenso S10000 has an integrated micro-USB cable for charging devices with micro-USB inputs. The Intenso S10000 is very flat, but somewhat wide. It fits well into your trouser pocket and can just be held comfortably in your hand. The workmanship looks good.


The Intenso S10000 is very flat, but a bit wider. It fits well into your trouser pocket and can just be held comfortably in your hand. The workmanship looks solid, but the transitions between the individual case parts can be clearly felt. The integrated micro-USB cable blends discreetly into the power bank and can be unfolded as needed.

Connections to the power

The power bank has a USB output (2.1 A) and an integrated Micro-USB output (2.1 A). A micro-USB input (2.1 A) is provided for charging.


Capacity measurement setup
Capacity measurement setup

Since power banks never have all their full capacity available, I measured the usable capacity of the Intenso S10000 by discharging it via a resistor and recording the power. For this test I have set a current of 2 A. The measured capacity is about 8.710 mAh. This corresponds to 87 percent of the stated capacity of the manufacturer.

You can see the power output during the discharge in the following graph:

Power during discharge

The power output is almost constant during the entire discharge and only decreases minimally in the last 30 minutes.

Charging time

Production of heat during discharge .
A micro-USB input (2.1 A) is provided for charging.

To measure the charging time, I connected the power bank to a power supply that can deliver the maximum charging current of 2 A. The power bank is connected to a power supply that can supply the maximum charging current of 2 A. The power bank is connected to the power supply of the Powerbank. I measured a charging time of about 6:34 hours. The charging current is about 1.6 A.

Heat development

Both during charging and discharging I noticed clear warming of the Powerbank with our thermal imaging camera. The higher temperature is reached during discharging and amounts to approx. 49 °C. I measured a temperature of 41.5 °C during charging.

Short-circuit behaviour and overload protection

A short circuit can damage the Powerbank and in the worst case lead to a fire. Such a short-circuit can be caused by a defective cable, for example. In order to investigate the behavior of the Powerbank in such a case, I intentionally short-circuited it. The Intenso S10000 switches off immediately and is still functional after the short circuit.

I also investigated the behavior of the Intenso S10000 in case of an overload. First, I increased the power consumption of a connected consumer until the Powerbank switches off.

  • The USB output, which is designed for 2.1 A, switches off at 2.6 A. The power consumption of a connected consumer is increased until the power bank switches off. The supply voltage is still 4.7 V.
  • The Micro-USB output designed for 2.1 A switches itself off at 2.6 A. The power supply voltage is still 4.7 V. The Micro-USB output designed for 2.1 A switches itself off at 2.6 A. The supply voltage is still 4.5 V.

If several loads are connected simultaneously, the power bank also switches off at 2.6 A with a supply voltage of 4.7 V. The power bank is also switched off at 2.6 A with a supply voltage of 4.7 V.

Drop test

Falling down is no problem for the Intenso S10000. I dropped the power bank in our office from a height of one meter onto the hard carpet. No external damage was visible afterwards and the power bank still worked perfectly.

We have evaluated about 1,000 reviews on the Internet. In summary, it can be said that around 80 percent of buyers are satisfied (4 stars) or even very satisfied (5 stars). Partially (2 stars) or completely dissatisfied are approximately 15 percent of the users. The average score at the time of the evaluation was 4.2 out of 5 stars.

Summary: 80% positive and 15% negative ratings

The following points were positively noted:

  • Integrated microUSB cable
  • Can charge two devices at the same time

The following points were noted negatively:

  • Integrated cable is somewhat short
  • Heavy
Manufacturer Intenso
EAN 4034303022656
Scope of delivery Powerbank, manual, charging cable (USB to microUSB, 45 cm)
Quality impression Good
Inlets Micro-USB (5V/2,1A)
Outlets 1x Micro-USB (5V/2,1A) with integrated cable, 1x USB (5V/2,1A)
Charge indicator 4 LED - charge indicator
Capacity (manufacturer) 10.000 mAh
Capacity (measured) 8.714 mAh
Charching time 6:34 hrs
Additional warranty 2 years
Height 13 cm
Width 7 cm
Depth 1,6 cm
Weight 205 g
Simultaneous charging and discharging Yes
Loading several devices in parallel Yes, 2
Button No button
Packaging Informative, magnetic closure
Quality of instructions Detailed
Manual language GER, EN, FR, NL, IT, ES, PT, CZ, HR, PL, SK, HU, RU
Range of functions
Size capacity ratio
Usable capacity

Our winner

All products

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Overview: Power Banks with 10.000 mAh

How do you like this product?


How is the charge status of the power bank displayed?
By 4 LEDs, which light up depending on the charge level.
Which devices can I charge with the power bank?
With the power bank, you can charge all mobile phones and other devices that need 5V for charging.
Which cables are included?
A 45 cm USB to Micro-USB charging cable is included. In addition, the power bank has an integrated micro-USB cable.
How long does it take to charge the power bank?
Charging the power bank takes about 6:34 hours.
Is there a flashlight integrated into the power bank?
Can the power bank be used while it is loading?
Yes, it can.


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