Lightning to USB adapter w/power = very little watts available

Not sure what's up with the Lightning adapters, but they struggle with power delivery even when connected to multiple 2.4A USB power bricks at the same time.


First Setup:

iDevice > Lightning Usb + power > USB hub + SD + SSD >

That thing works only if the planets align and it's clear there's not quite enough power


Second setup:

iDevice > Dual Lightning splitter > Lightning USB adapter + SSD > Power

> SD reader > Power


Twice the watts, and it's still not enough power in both layouts!


For comparison, I plugged the whole USB-side of the experiment to my Pixel1 Android - USB-C without external power and I swear I heard it start singing *I can do this all day*


Everything powered up instantly, no complaints from the Pixel, and man is that file copy fast!


By comparison, trying the same with a fully charged iPad 2017/iPhone 8/iPhone Xr all of them with 200% available watts: I'm giving 'er all she's got captain! There's no more power! *dies*


Where is all the power going for this adapter, even with two lightning cables?


Are the USB-C iPads better about this?


My goal with the project was to be able to archive/backup/view/upload thousands of photos while on vacation without needing a laptop.



iPad (6th gen) WiFi, Cellular

Posted on Jan 10, 2022 6:58 AM

Reply
Question marked as Top-ranking reply

Posted on Jan 11, 2022 9:35 AM

You should be using an Apple 12W power adapter or even better, Apple's 20 W USB-C power adapter with a USB-C to Lightning cable.

My iPad with Lightning connector has no issues with my Samsung T5 SSD, when it is connected via the AppleLighting to USB-3 adapter that allows external power.


You need to purchase the actual, genuine Apple Lightning to USB-3 camera adapter, from Apple, and plug that adapter into external power using your iPad charge cable and Apple power/charging block!

Tap the link below.


https://www.apple.com/shop/product/MK0W2/lightning-to- usb-3-camera-adapter?fnode=37



You NEED TO PURCHASE THIS EXACT genuine Apple adapter above!!!


This is THE ONLY adapter that works!


Cheaper ( cheap in price and quality ) third party “knockoff” adapters WILL NOT WORK!!!!


With Lightning connector equipped iPads, you need this adapter as it has a Lightning connector power connection to power both the iPad and to connect a commonplace USB flash memory drive or portable SSD drive.


Without the additional power to the iPad, USB flash drives and portable SSD drives will NOT work with older iPads with the Lightning connector.


The Lightning connector alone cannot convey the,necessary power requirements needed for normal USB style flash memory drives.


YOU NEED TO CONNECT AN EXTERNAL POWER SOUCE TO THIS ADAPTER for that adapter to work with ANY externally connected drive!!! Even to get any standard USB flash memory drives to work on older Lightning connector equipped iPads.


For external power sources, you CAN even use portable, carry-able, rechargeable power banks that can be found everywhere online ( try Amazon ) that can power the iPad and external drives, as well.



There are lots of YouTube videos that discuss and demonstrate this.


Here are just two references, as an example.


YouTube video reference links below

Tap the links below.


https://youtu.be/1Jm-xcrbFy8


https://youtu.be/8iHc1mc5SJE



You must use a full Mac or Windows PC computer to do the re-formatting of any external drive to use with iPad/iPhone/iOS/iPadOS.


My experiences have recommended that any external drive needing to be used with ANY Apple iPadOS device really needs to be formatted on an Apple Mac computer to ensure/insure correct operation.


If NO Mac computer, find and family member or friend that owns a Mac to possibly help you format this drive


OR


You need to search online for your nearest, “local” Apple store location and call contact phone numbers and call to make an appointment to ANY external drive you have properly format by Apple employees who have access to a Mac.

They will be glad to assist you.


In addition, the external drive needs to be formatted using a single data drive partition into one of these file/data formats below.


Apple Mac computer native drive formats - APFS ( Apple Proprietary File System ) OR Apple HFS+ ( Hierarchical File System+ )


Fat 32

exFAT


Apple Website external drive help links here below.

Tap the links below.


https://support.apple.com/en-gb/guide/ipad/ipad1c415e32/ipados


https://support.apple.com/guide/ipad/external-storage-devices-ipad75b7b23f/14.0/ipados/14.0

connected

9 replies
Question marked as Top-ranking reply

Jan 11, 2022 9:35 AM in response to chattphotos

You should be using an Apple 12W power adapter or even better, Apple's 20 W USB-C power adapter with a USB-C to Lightning cable.

My iPad with Lightning connector has no issues with my Samsung T5 SSD, when it is connected via the AppleLighting to USB-3 adapter that allows external power.


You need to purchase the actual, genuine Apple Lightning to USB-3 camera adapter, from Apple, and plug that adapter into external power using your iPad charge cable and Apple power/charging block!

Tap the link below.


https://www.apple.com/shop/product/MK0W2/lightning-to- usb-3-camera-adapter?fnode=37



You NEED TO PURCHASE THIS EXACT genuine Apple adapter above!!!


This is THE ONLY adapter that works!


Cheaper ( cheap in price and quality ) third party “knockoff” adapters WILL NOT WORK!!!!


With Lightning connector equipped iPads, you need this adapter as it has a Lightning connector power connection to power both the iPad and to connect a commonplace USB flash memory drive or portable SSD drive.


Without the additional power to the iPad, USB flash drives and portable SSD drives will NOT work with older iPads with the Lightning connector.


The Lightning connector alone cannot convey the,necessary power requirements needed for normal USB style flash memory drives.


YOU NEED TO CONNECT AN EXTERNAL POWER SOUCE TO THIS ADAPTER for that adapter to work with ANY externally connected drive!!! Even to get any standard USB flash memory drives to work on older Lightning connector equipped iPads.


For external power sources, you CAN even use portable, carry-able, rechargeable power banks that can be found everywhere online ( try Amazon ) that can power the iPad and external drives, as well.



There are lots of YouTube videos that discuss and demonstrate this.


Here are just two references, as an example.


YouTube video reference links below

Tap the links below.


https://youtu.be/1Jm-xcrbFy8


https://youtu.be/8iHc1mc5SJE



You must use a full Mac or Windows PC computer to do the re-formatting of any external drive to use with iPad/iPhone/iOS/iPadOS.


My experiences have recommended that any external drive needing to be used with ANY Apple iPadOS device really needs to be formatted on an Apple Mac computer to ensure/insure correct operation.


If NO Mac computer, find and family member or friend that owns a Mac to possibly help you format this drive


OR


You need to search online for your nearest, “local” Apple store location and call contact phone numbers and call to make an appointment to ANY external drive you have properly format by Apple employees who have access to a Mac.

They will be glad to assist you.


In addition, the external drive needs to be formatted using a single data drive partition into one of these file/data formats below.


Apple Mac computer native drive formats - APFS ( Apple Proprietary File System ) OR Apple HFS+ ( Hierarchical File System+ )


Fat 32

exFAT


Apple Website external drive help links here below.

Tap the links below.


https://support.apple.com/en-gb/guide/ipad/ipad1c415e32/ipados


https://support.apple.com/guide/ipad/external-storage-devices-ipad75b7b23f/14.0/ipados/14.0

connected

Jan 12, 2022 8:53 AM in response to chattphotos

You are attempting to connect multiple Power Adapters? If so, while your maths may be flawless, your execution overlooks a significant limiting factor…


Your iPad (or adapter) will only accept power from a single input that is designated for power. As such, the only way to introduce more power is to use a single Power Adapter capable of sourcing more power. However, there are other technical limitations…


Lightning connections are effectively limited, by current, to 2.4A@5V (12W). Higher power requires the use of a Power Adapter that supports USB PD (Power Delivery). When connected to compatible devices, USB PD can operate at higher bus voltages - therefore delivering more power through a compatible Lightning port (e.g., 2.0A@9V / 1.5A@12V = 18W).


During initial connection, the source (Power Adapter) and sink (the connected device and accessories) negotiate the highest common power profile supported by all connected devices and the Power Adapter.

Jan 11, 2022 7:41 AM in response to chattphotos

Hello chattphotos,


We understand that you're trying to back up your photos to an external hard drive. Per the article Connect external storage devices to iPad, "External hard drives often require an external power source when used with iPad. If an external hard drive doesn’t supply its own power, and your iPad has a USB-C or Thunderbolt / USB 4 connector, you can use a powered USB hub. If your iPad has a Lightning connector, you can use the Lightning to USB 3 Camera Adapter connected to a USB power adapter."


The article also outlines what can be chained together. For example, "With iPad Pro 12.9-inch (5th generation) or iPad Pro 11-inch (3rd generation), you can connect multiple USB drives and other Thunderbolt devices to each other, then connect the chain of devices to the charging port on your iPad." So not all devices will work with a chain of devices.


Thanks for using Apple Support Communities!

Jan 14, 2022 11:07 AM in response to LotusPilot

Your iPad (or adapter) will only accept power from a single input that is designated for power.

My USB current meter shows both power sources are being used at the same time


Right now it's about 0.3A per USB connection while I test save 100 photos to a USB drive


I can try USB-C PD to see if it helps drive the hub + lightning for the iDevice, but that was unexpected as to how much power isn't being delivered over lightning.

Jan 11, 2022 8:53 AM in response to ShannonM1

Hi Shannon, while yes those technical details are good to know, please go read the post again


To recap:

I've stated there are two power connections hooked up to the iPad

Somehow this is still not enough to power up an SSD, not a hard drive


SSD's require very little power, but yet the lightning adapters are not passing much to the USB side


I can plug the whole USB-assembly with more devices attached into an Android and everything comes up like it's plugged into my laptop (This is the expectation on the iPad)


I ask again, where is the power going because 5A of USB power should be overkill to connect an SD card and SSD to my iPad, but it's clearly not enough


Jan 12, 2022 6:12 AM in response to MichelPM

Quick math - 5V * 2.4A = 12W

I have two 12W connections running into the thing, it's the Anker 60W 6-port USB power brick, but the performance is the same on Apple adapters as well


I have that adapter listed and a lightning SD reader as well and to reference from my original post:


First Setup:

iDevice > Lightning Usb + power > USB hub > SD + SSD

That thing works only if the planets align, but it's clear there's still not quite enough power to drive it


Second setup:

iDevice > Dual Lightning splitter > Lightning USB adapter + SSD > Power

> SD reader > Power


The key thing highlighted is that driving an SD card on a lightning hub + SSD hooked up to the second port on the splitter, backed by 24W of power is somehow still not enough

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

Lightning to USB adapter w/power = very little watts available

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