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What does the charging speed of battery-powered devices depend on?

The battery capacity is specified in milliampere hours (mAh) and determines the energy volume of a battery.

Different charging speeds result from the devices' integrated charging electronics, which regulate the optimised current intensity themselves depending on the requirements and charge status of the battery. The charging speed can be influenced by the current output provided by the charger or by the cable used.

USB chargers and power banks often only provide a current output of 1 A. This example* illustrates the difference to many InLine products with 2.1 A or 5 A output using a smartphone with a 2,500 mAh battery:

Output

Calculation

Charging time

 1 A 2,5 Ah / 1 A 2h und 30 Min.
2,1 A 2,5 Ah / 2,1 A 1h und 12 Min.
5 A 2,5 Ah / 5 A 30 Min.


*Ideal typical example with constant charging current without power loss

To maximise charging speed, all components used must be compatible with each other. Unsuitable cables often slow down the charging process as they cannot transmit the full current of the charger.

USB power supply units

InLine offers an extensive range of USB power supplies from small and compact to our maximum power of up to 140 W!
Offer
InLine® USB Power Adapter DUO, 2 Port 100-240VAC to 5V / 2.1A white
InLine® USB Power Adapter DUO, 2 Port 100-240VAC to 5V / 2.1A
The InLine® USB Power Adapter allows you to adapt the USB power directly from the wall socket, so you can for example use the adapter as a power source for USB mobile phone charger. Ideal suitable as USB AC Adapter / Charger for iPhone, iPad, iPod / Mini / Shuffle, smartphones, etc.
  • Input voltage: 100-240V AC
  • Input AC frequency: ~50/60 Hz, 0.5 A
  • Output voltage: 5.0 V DC
  • Output current: max. 2.1 A
  • Output power: 10.5 W
  • Average active efficiency: 82.11 %
  • No-load power consumption: 0.09 W
  • 2x USB A Female
  • Current: max. 2.1A, when using two ports at the same time, the max. current distributed on both ports.

 

Offer
InLine® USB PD Charger Single USB-C, Power Delivery, 20W, black
InLine® USB PD Charger Single USB-C, Power Delivery, 20W
The InLine® USB power supply is a fast charging power supply for compatible USB devices, e.g. compatible with the iPhone. Conventional end devices can also be charged with this power supply, but they take longer to be fully recharged.
  • USB power supply/charger
  • USB Type-C PD output: 5VDC/3A - 9VDC/2.22A - 12VDC/1.5A, Power Delivery 3.0 compatible (max. 20W)
  • Input voltage: 100-240V AC
  • Input AC frequency: ~50/60 Hz, 0 .5 A
  • Output voltage: 5.0-20.0 V DC
  • Output current: max. 3.0 A
  • Output power: 20.0 W< /li>
  • Average efficiency in operation: 89.7% (12V / 1.67A), 85.6% (5V / 3A)
  • Efficiency at light load (10% ): 79.6% (12V / 1.67A), 80.0% (5V / 3A)
  • No load power consumption: 0.02W
  • Over voltage - and short-circuit protection
  • If the temperature of the power supply unit is too high, it switches off automatically and automatically resumes charging after it has cooled down

 

Offer
InLine® USB PD power supply, GaN charger, 5-port, USB-C + USB-A, 140W, w/display
This USB power supply from InLine combines state-of-the-art charging technology with a smart consumption indicator. Gain valuable insights into energy consumption while the charger supplies smartphones and other devices with power reliably, quickly and safely.

The built-in digital display allows you to keep an eye on the current energy consumption in watts at all times and compare different devices with each other. By displaying the energy consumption, you can monitor the efficiency of your devices, adjust your charging habits and learn to use energy more consciously.

The USB power supply from InLine is equipped with state-of-the-art, environmentally friendly technology to ensure fast and efficient charging performance. With a high output power of 140 watts, you can charge several devices at the same time without sacrificing charging speed. Gallium nitride (GaN) technology increases durability, reliability, charging efficiency and power density in a more compact and lightweight design. Thanks to the lower energy consumption during charging, the reduced material consumption during production and the smaller transport volume, the InLine power supply unit is particularly environmentally friendly.

The charger supports Power Delivery 3.0 on the USB-C ports and Quick Charge 3.0 on the USB-A port. These fast charging technologies optimise charging performance and speed with minimal energy loss. The intelligent charging detection adapts the charging speed to the device and the charge level. This shortens the charging time, protects the battery and increases its service life. The USB power supply is excellently insulated and has comprehensive protection against overvoltage, overheating and short circuits.

The lightweight, compact design hardly weighs a thing when travelling and fits into any multiple socket strip. Thanks to its variety of connections and technologies, this power adapter can be used universally and is compatible with a wide range of devices, including iOS and Android devices. Enjoy the latest charging technology while keeping an eye on the energy consumption of your devices.

Technical characteristics
  • USB power adapter/charger
  • Input voltage: 100-240VAC, 2.50A
  • Input AC frequency: 50/60Hz
  • Output voltage/output current/output power:
  • USB-C1/USB-C2/USB-C3 output:
    • 5.0 V DC / 3.0 A / 15.0 W - 9.0 V DC / 3.0 A / 27.0 W - 12.0 V DC / 3.0 A / 36.0 W - 15.0 V DC / 3.0 A / 45.0 W - 20.0 V DC / 5.0 A / 100.0 W
  • USB-A1/USB-A2 output:
    • 5.0 V DC / 3.0 A / 15.0 W - 9.0 V DC / 3.0 A / 27.0 W - 12.0 V DC / 3.0 A / 36.0 W - 15.0 V DC / 3.0 A / 45.0 W - 20.0 V DC / 5.0 A / 100.0 W
  • USB-A1 + USB-A2 output:
    • max. 24.0 W (12.0 W + 12.0 W)
  • USB-C1/USB-C2 + USB-C2/USB-C3 output:
    • 5.0 V DC / 3.0 A / 15.0 W - 9.0 V DC / 3.0 A / 27.0 W - 12.0 V DC / 3.0 A / 36.0 W - 15.0 V DC / 3.0 A / 45.0 W - 20.0 V DC / 4.75 A / 95.0 W + 5.0 V DC / 3.0 A / 15.0 W - 9.0 V DC / 3.0 A / 27.0 W - 12.0 V DC / 3.0 A / 36.0 W - 15.0 V DC / 3.0 A / 45.0 W - 20.0 V / 2.25 A / 45.0 W
  • USB-C1/USB-C2/USB-C3 + USB-A1/USB-A2 output:
    • max. 136.0 W (100.0 W + 36.0 W)
  • USB-C1/USB-C2/USB-C3 + USB-A1 + USB-A2 output:
    • max. 124.0 W (100.0 W + 12.0 W + 12.0 W)
  • USB-C1 + USB-C2 + USB-C3 output:
    • max. 140.0 W (65.0 W + 45.0 W + 30.0 W)
  • USB-C1/USB-C2 + USB-C2/USB-C3 + USB-A1/USB-A2 output:
    • max. 135.0 W (65.0 W + 45.0 W + 25.0 W)
  • USB-C1/USB-C2 + USBC-2/USB-C3 + USB-A1 + USB-A2 output :
    • max. 134.0 W (65.0 W + 45.0 W + 12.0 W + 12.0 W)
  • USB-C1 + USB-C2 + USB-C3 + USB-A1/USB-A2 output:
    • max. 140.0 W (65.0 W + 30.0 W + 20.0 W + 25.0 W)
  • USB-C1 + USB-C2 + USB-C3 + USB-A1 + USB-A2 output:
    • 5.0 V DC / 3.0 A / 15.0 W - 9.0 V DC / 3.0 A / 27.0 W - 12.0 V DC / 3.0 A / 36.0 W - 15.0 V DC / 3.0 A / 45.0 W - 20.0 V DC / 3.25 A / 65.0 W + 5.0 V DC / 3.0 A / 15.0 W - 9.0 V DC / 3.0 A / 27.0 W - 12.0 V DC / 2.5 A / 30.0 W - 15.0 V DC / 2.0 A / 30.0 W - 20.0 V / 1.5 A / 30.0 W + 5.0 V DC / 3.0 A / 15.0 W - 9.0 V DC / 2.22 A / 20.0 W - 12.0 V DC / 1.67 A / 20.0 W - 15.0 V DC / 1.33 A / 20.0 W + 5.0 V DC / 2.4 A / 12.0 W + 5.0 V DC / 2.4 A / 12.0 W
  • Average operating efficiency:
    • 86,22 % (230 V, 50 Hz, USB-C1 + USB-C2 + USB-C3 + USB-A1 + USB-A2 5.0 V / 2.0 A + 5.0 V / 2.0 A + 5.0 V / 2.0 A + 5.0 V / 2.4 A + 5.0 V / 2.4 A)
    • 90,04 % (230 V, 50 Hz, USB-C1 + USB-C2 + USB-C3 + USB-A1 + USB-A2 20,0 V / 3.25 A + 20.0 V / 1.5 A + 15.0 V / 1.33 A + 5.0 V / 2.4 A + 5.0 V / 2.4 A)
  • Efficiency at low load (10%):
    • 79,39 % (230 V, 50 Hz, USB-C1 + USB-C2 + USB-C3 + USB-A1 + USB-A2 5,0 V / 2.0 A + 5.0 V / 2.0 A + 5.0 V / 2.0 A + 5.0 V / 2.4 A + 5.0 V / 2.4 A)
    • 85,54 % ( 230 V, 50 Hz, USB-C1 + USB-C2 + USB-C3 + USB-A1 + USB-A2 20,0 V / 3.25 A + 20.0 V / 1.5 A + 15.0 V / 1.33 A + 5.0 V / 2.4 A + 5.0 V / 2.4 A)
  • Power consumption at no load: 0.22W
  • Total output power max. 140.0W
  • Overvoltage and short circuit protection
  • If the power supply temperature is too high, it switches off automatically and automatically continues charging after it has cooled down
  • Dimensions power adapter: 80x31x85 mm (LxWxH)
  • Dimensions stand: 60x60x32.5 mm (LxWxH)
  • Weight: approx. 349g
Item no.: 31553

Offer
InLine® USB car power adapter Power Delivery, 2x USB-C + QC USB-A, black
With this charger you convert the car socket into a USB port to charge or power your notebook, navigation system, smartphone, tablet or any other mobile USB device.
  • Input voltage: DC 12/24V
  • Output voltage USB-A QC 3.0: DC 5V/3A, 9V/2A, 12V/1,5A, 18W max.
  • Output voltage USB-C1 Power Delivery: DC 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/3A, 20V/5A, 100W max.
  • Output voltage USB-C2 Power Delivery: DC5V/3A, 9V/3A, 12V/2,5A, 30W max.
  • Output voltage USB-C1 + USB-C2: 65W + 30W = 95W
  • Output voltage USB-C1 + USB-A: 65W + 18W = 83W
  • Output voltage USB-C2 + USB-A: 30W + 18W = 48W
  • Output voltage USB-C1 + USB-C2 + USB-A: 45W + 30W + 18W = 93W
  • Interfaces: 2x USB-C, 1x USB-A
  • Supported charging methods: Power Delivery 3.0 (PD3.0), Quickcharge 3.0 (QC3.0)
  • Material: Plastic/aluminium
  • Dimensions: approx. 85x35mm (LxW)
  • Weight: approx. 55g
Item no.: 31502A

USB charging cable

Whether USB-C, micro-USB, Lightning or notebook charging cable. At InLine you will find the right charging cable for your device.
Offer
InLine® USB 2.0 cable, USB-C male/male 100W quick charger cable, 1m
InLine® USB 2.0 cable, USB-C male/male 100W quick charger cable, textile black

The USB-C cable is the perfect cable for fast charging of your smartphone or tablet with USB-C charging socket, it contains an intelligent E-Marker chip, which recognises the fastest charging option of the connected devices and prevents damage to hardware due to overvoltage.


  • USB-C fast charging cable up to 100 W
  • USB-C plug to USB-C plug in aluminium housing
  • Flexible and robust cable with nylon fabric jacket
  • With E-marker in the cable that allows a higher charging current of up to 5 A at 20 V
  • USB 2.0 data transfer with up to 480 Mb/s

 

InLine® 3-in-1 USB Cable, USB-A M to Micro-USB+USB-C+Lightning, black/aluminium
  • Synchronize data and recharge your smartphone or tablet at the same time
  • Robust cable with braided sheath and aluminium connectors
  • 3-in-1 charging and data cable to use mobile phones with Lightning, Micro-USB or USB Type-C connection
  • USB 2.0 compatible
  • The max. supported current for 3 in 1 cable is 2.4A, it support PD/QC/PPS fast charging function.
  • Compatible with the following Apple models with Lightning connector: iPhone 14 Pro, iPhone 14 Pro Max, iPhone 14 Plus, iPhone 14, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13 mini, iPhone 13, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12 mini, iPhone 12, iPhone 11 Pro, iPhone 11 Pro Max , iPhone 11, iPhone SE (2nd generation), iPhone XS, iPhone XS Max, iPhone XR, iPhone X, iPhone 8 Plus, iPhone 8, iPhone 7 Plus, iPhone 7, iPhone SE, iPhone 6s Plus, iPhone 6s, iPhone 6 Plus, iPhone 6, iPhone 5s, iPhone 5c, iPhone 5, iPad mini (6th generation), iPad (9th generation), 12.9 "iPad Pro (2nd generation), 12.9" iPad Pro (1st generation) . Generation), 10.5 "iPad Pro, 9.7" iPad Pro, iPad Air (3rd generation), iPad Air 2, iPad Air (1st generation), iPad (8th generation), iPad (7th generation ), iPad (6th generation), iPad (5th generation), iPad mini (5th generation), iPad mini 4, iPad mini 3, iPod touch (7th generation), iPod touch 6th generation, iPod touch 5. Generation, iPod nano 7th generation, AirPods Max, AirPods Pro, AirPods with wireless charging case (2nd generation), AirPods with charging case (2. Generation), AirPods (1st generation), wireless charging case for AirPods and newer models
Item no.: 31415S

InLine® USB-C Lightning cable, for iPad, iPhone, iPod, silver/aluminium, 2m
InLine® USB-C Lightning cable, for iPad, iPhone, iPod, MFi certified
This USB cable connects iPhone, iPad or iPod with a Lightning plug into the USB-C port of the computer. Synchronise, data transfer and charge your device using this cable over USB-C from your PC or Mac or use your power adapter for charging.
  • Same time synchronize data and charge your iPhone / iPad / iPad
  • To connect an iPhone / iPad / iPod to your PC or Mac
  • Compatible with the following Apple models with Lightning connector: iPhone 14 Pro, iPhone 14 Pro Max, iPhone 14 Plus, iPhone 14, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13 mini, iPhone 13, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12 mini, iPhone 12, iPhone 11 Pro, iPhone 11 Pro Max , iPhone 11, iPhone SE (2nd generation), iPhone XS, iPhone XS Max, iPhone XR, iPhone X, iPhone 8 Plus, iPhone 8, iPhone 7 Plus, iPhone 7, iPhone SE, iPhone 6s Plus, iPhone 6s, iPhone 6 Plus, iPhone 6, iPhone 5s, iPhone 5c, iPhone 5, iPad mini (6th generation), iPad (9th generation), 12.9 "iPad Pro (2nd generation), 12.9" iPad Pro (1st generation) . Generation), 10.5 "iPad Pro, 9.7" iPad Pro, iPad Air (3rd generation), iPad Air 2, iPad Air (1st generation), iPad (8th generation), iPad (7th generation ), iPad (6th generation), iPad (5th generation), iPad mini (5th generation), iPad mini 4, iPad mini 3, iPod touch (7th generation), iPod touch 6th generation, iPod touch 5. Generation, iPod nano 7th generation, AirPods Max, AirPods Pro, AirPods with wireless charging case (2nd generation), AirPods with charging case (2. Generation), AirPods (1st generation), wireless charging case for AirPods and newer models
  • Cable with USB A male plug to Lightning plug
  • Licensed MFi cable
  • Colour: silver
iPad, iPhone, iPod, iPod classic, iPod nano, iPod Shuffle and iPod touch are trademarks of Apple Inc., registered in the U.S. and other countries.

 

InLine® USB-C to HP Notebook (round/large) charging cable, 2m
This charging cable makes it possible to charge an HP notebook on a charger with USB Type-C. The optionally required USB-C power adapter must provide the Power Delivery (PD) function with 20V/3.25A (65W).
  • Input: USB-C plug, voltage DC 18-20V max. 3.25A
  • Output: Round DC plug, outer diameter 7.4mm, inner diameter 5.0 mm, inner pin with 0.6 mm diameter, voltage DC 18-20V max. 3.25A
  • Colour: Black
Item no.: 26673

InLine® Lightning USB Cable, for iPad, iPhone, iPod, black/alu, 2m MFi-Certified
InLine® Lightning USB Cable, for iPad, iPhone, iPod, MFi-Certified
This USB cable connects iPhone, iPad or iPod with a Lightning plug into the USB port of the computer. Synchronise, data transfer and charge your device using this cable over USB from your PC or Mac or use your power adapter for charging.
  • Same time synchronize data and charge your iPhone / iPad / iPad
  • To connect an iPhone / iPad / iPod to your PC or Mac
  • Compatible with the following Apple models with Lightning connection: iPhone 14 Pro, iPhone 14 Pro Max, iPhone 14 Plus, iPhone 14, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13 mini, iPhone 13, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12 mini, iPhone 12, iPhone 11 Pro, iPhone 11 Pro Max , iPhone 11, iPhone SE (2nd generation), iPhone XS, iPhone XS Max, iPhone XR, iPhone X, iPhone 8 Plus, iPhone 8, iPhone 7 Plus, iPhone 7, iPhone SE, iPhone 6s Plus, iPhone 6s, iPhone 6 Plus, iPhone 6, iPhone 5s, iPhone 5c, iPhone 5, iPad mini (6th generation), iPad (9th generation), 12.9 "iPad Pro (2nd generation), 12.9" iPad Pro (1st generation) . Generation), 10.5 "iPad Pro, 9.7" iPad Pro, iPad Air (3rd generation), iPad Air 2, iPad Air (1st generation), iPad (8th generation), iPad (7th generation ), iPad (6th generation), iPad (5th generation), iPad mini (5th generation), iPad mini 4, iPad mini 3, iPod touch (7th generation), iPod touch 6th generation, iPod touch 5. Generation, iPod nano 7th generation, AirPods Max, AirPods Pro, AirPods with wireless charging case (2nd generation), AirPods with charging case (2. Generation), AirPods (1st generation), wireless charging case for AirPods and newer models
  • Cable with USB A male plug to Lightning plug
  • Licensed MFi cable
  • Colour: black
  • Supports fast charging with up to 18W, USB-Power Delivery (USB-PD) compatible
iPad, iPhone, iPod, iPod classic, iPod nano, iPod Shuffle and iPod touch are trademarks of Apple Inc., registered in the U.S. and other countries.

 

InLine® USB 2in1 Y-charging cable, 1x USB-A plug to 2x USB-C plug, 2m
InLine® USB 2in1 Y-charging cable, 1x USB-A male to 2x USB-C male, black
  • Efficient 2-in-1 design for simultaneous charging of two USB-C devices
  • Up to 25W charging power – ideal for smaller electronic devices
  • Space-saving solution to reduce cable clutter in the work environment
  • Reliable power supply via only one USB-A port
  • Ideal for IT rollouts, service teams and workplace solutions

The InLine® USB 2in1 Y charging cable has been specially designed for professional use to enable the parallel power supply of two USB-C end devices via a single USB-A power source. With up to 25 watts of charging power (split between both outputs), this cable is ideal for smaller devices such as power banks, headphones, scanners or smart gadgets - whether in the office, in the workshop or at trade fairs.

Especially in environments where efficient use of resources is required, the Y-cable not only saves space, but also ensures tidy cable management thanks to its sophisticated design. Whether in the context of IT rollouts or in daily use by technical teams, this cable is a practical, robust and versatile solution.

  • Connection A: 1x USB-A plug
  • Connection B: 2x USB-C plug
  • Fast charging function: Not supported
  • Application range: Compatible with small USB-C end devices

How to use
Not recommended for smartphones, tablets and similar devices with smart charging logic: As this cable does not offer fast charging support and the maximum charging power is divided to 25 watts, it is not suitable for modern devices such as smartphones and tablets that require precise charging monitoring and fast charging times.

 

InLine® USB 4in1 Y-charging cable, 1x USB-A plug to 4x USB-C plug, 1m
InLine® USB 4in1 Y-charging cable, 1x USB-A male to 4x USB-C male, black
  • Efficient 4in1 design for simultaneous charging of four USB-C devices
  • Up to 25W charging power – ideal for smaller electronic devices
  • Space-saving solution to reduce cable clutter in the work environment
  • Reliable power supply via only one USB-A port
  • Ideal for IT rollouts, service teams and workplace solutions

The InLine® USB 4in1 Y charging cable has been specially designed for professional use to enable the parallel power supply of four USB-C end devices via a single USB-A power source. With up to 25 watts of charging power (split across four outputs), this cable is ideal for smaller devices such as power banks, headphones, scanners or smart gadgets - whether in the office, workshop or at trade fairs.

Especially in environments where efficient use of resources is required, the Y-cable not only saves space, but also ensures tidy cable management thanks to its sophisticated design. Whether in the context of IT rollouts or in daily use by technical teams, this cable is a practical, robust and versatile solution.

  • Connection A: 1x USB-A plug
  • Connection B: 4x USB-C plug
  • Fast charging function: Not supported
  • Application range: Compatible with small USB-C end devices

How to use
Not recommended for smartphones, tablets and similar devices with smart charging logic: As this cable does not offer fast charging support and the maximum charging power is divided to 25 watts, it is not suitable for modern devices such as smartphones and tablets that require precise charging monitoring and fast charging times.