Can I use Zerolemon battery bank to charge my iPad Pro 12.9 5th gen?

I know iPad Pro (12.9 5th gen) came with 20w power supply and apple allows 30w charge as well but that’s OEM by Apple. Zerolemon battery bank (3rd party) is running 22.5w I know it can charge the iPad Pro but will that 2.5w extra power damage the iPad or its battery?

iPad Pro, iPadOS 14

Posted on Aug 31, 2021 11:40 PM

Reply
Question marked as Top-ranking reply

Posted on Sep 1, 2021 2:05 AM

Your iPad Pro is not limited to using “standard” 5V USB Power Adapters - but when doing so the charge rate is limited to 12W (2.4A @5V).


Some correct information and technical explanation is needed…


Your iPad Pro supports USB PD (Power Delivery) Fast Charging. This USB technology supports higher charging rates. When using a compatible power source, the power source and iPad actively negotiate a mutually supported power profile - and adjust the charging voltage/current. Your iPad supports an 18W charging rate - this usually being achieved by charging at 2.0A @9V or 1.5A @12V (remember, Volts x Amps = Watts).


If the Power Source (be it a Power Adapter or PowerBank battery) does not support USB PD, the iPad can only charge at the maximum standard 5V/12W USB charging rate. For the benefit of clarity, iPad does not support the competing QC (Quick Charge) standard.


Using a compatible USB or USB PD power source with a higher power rating will not harm your iPad; the iPad will only draw the power that it requires.

9 replies
Question marked as Top-ranking reply

Sep 1, 2021 2:05 AM in response to MyPrius2010

Your iPad Pro is not limited to using “standard” 5V USB Power Adapters - but when doing so the charge rate is limited to 12W (2.4A @5V).


Some correct information and technical explanation is needed…


Your iPad Pro supports USB PD (Power Delivery) Fast Charging. This USB technology supports higher charging rates. When using a compatible power source, the power source and iPad actively negotiate a mutually supported power profile - and adjust the charging voltage/current. Your iPad supports an 18W charging rate - this usually being achieved by charging at 2.0A @9V or 1.5A @12V (remember, Volts x Amps = Watts).


If the Power Source (be it a Power Adapter or PowerBank battery) does not support USB PD, the iPad can only charge at the maximum standard 5V/12W USB charging rate. For the benefit of clarity, iPad does not support the competing QC (Quick Charge) standard.


Using a compatible USB or USB PD power source with a higher power rating will not harm your iPad; the iPad will only draw the power that it requires.

Sep 1, 2021 3:14 AM in response to MyPrius2010

You must check the specifications of your PowerBank.


Your iPad supports USB PD (Power Delivery). When matched with a Power Adapter or PowerBank that also supports USB PD, your iPad can negotiate its power needs. You can use either a standard USB (5V) power supply, or USB PD compliant supply. Using a compatible but higher wattage supply will not cause any problems.


Your iPad is not compatible with the QC (Quick Charge) standard.


If you are unable to determine compatibility with your iPad, from the stated specifications of your PowerBank, you would be unwise to attempt to use it. This is true of any device and power supply pairing.

Sep 1, 2021 3:31 AM in response to MyPrius2010

QC (Quick Charge) is listed. As previously outlined, QC not compatible with Apple devices.


USB PD does not appear to be listed in the specification. Unless USB PD is explicitly listed, you cannot assume that this “standard” is implemented.


On the basis of information that you have found, your lemon is clearly not designed to be compatible with Apple devices.

Sep 1, 2021 1:50 PM in response to LotusPilot

Sorry I have one more question. I just checked the OEM iPad Pro charger 20W it says output 5V=3V and 3rd battery bank also says Type-C (USB-C pictures shown blow of PD) also have 5V/3A but also added 9V/2.5A = 22.5W. I don’t know anything about all this numbers but I’m assuming the USB-C port can auto switch between 18W or 22.5W, if that so can I plug in to my iPad without damage the battery in the long run? Sorry for keep asking same questions thanks for any assistance

Sep 1, 2021 4:44 PM in response to MyPrius2010

The listed specifications do not explicitly list USB PD; of itself, as a fundamental indication of compatibility, this might be interpreted as an indication of concern…


Your iPad is an expensive device; do you really want to risk using a relatively cheap non-OEM power source - of dubious specification - that may damage your iPad?


As previously outlined, the higher wattage is not something to worry about. Your iPad will only draw the current that it needs. What does matter is full compliance with the the USB PD (Power Delivery) protocol - that actively negotiates the power profile (voltage and current) that will be used to charge the iPad. Unless fully compliant, there is a risk of damage to your iPad.


If you damage your iPad through use of a non-compliant power source, your warranty will not cover damage.


Ultimately, it is your choice - and the risk is entirely yours.

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.

Can I use Zerolemon battery bank to charge my iPad Pro 12.9 5th gen?

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.