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User profile for user: okehu
okehu Author
User level: Level 1
6 points

Ipads use for Navigation on Boats

I use my Ipad 10.2 for Navigation on my sailing boat. It is always plugged into the 12V system but the software is using the battery faster than it is getting recharged so by the end of the day my Ipad is dead! I believe that this is because the Ipad will not accept charging at more than 2 amps but I'm no expert!


I am looking at buying the Ipad 12 Pro (as I'd like the bigger screen) to replace it but cannot work out if I will have the same problem. I see that it has an 18W charging facility but can't see if that would either help or be useable on a 12v system .


Can anyone help me please?


Thanks in advance

iPad Pro 12.9-inch, 3rd Gen, Wi-Fi, Cell

Posted on Feb 11, 2021 10:42 AM

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User profile for user: LotusPilot
LotusPilot
Community+ 2024
User level: Level 10
289,538 points

Posted on Feb 11, 2021 11:00 AM

With the exception of iPad8 and iPad mini5, the current models of iPad Air and iPad Pro support USB-PD (Power Delivery).


When used with an appropriate power adapter, the USB-PD compliant Power Adapters can charge compatible iPad devices at 18W (i.e. 1.5A @12V). If using a standard USB Power Adapter, charging is limited to 12A (2.4A @5V).


If using iPad for navigation, I presume that you are aware that only WiFi+Cellular models of iPad include GPS capabilities; WiFi Only models of iPad do not have any GPS - and this can negatively impact Mapping/Chart-plotting Applications.

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User profile for user: LotusPilot
LotusPilot
Community+ 2024
User level: Level 10
289,538 points

Feb 11, 2021 11:00 AM in response to okehu

With the exception of iPad8 and iPad mini5, the current models of iPad Air and iPad Pro support USB-PD (Power Delivery).


When used with an appropriate power adapter, the USB-PD compliant Power Adapters can charge compatible iPad devices at 18W (i.e. 1.5A @12V). If using a standard USB Power Adapter, charging is limited to 12A (2.4A @5V).


If using iPad for navigation, I presume that you are aware that only WiFi+Cellular models of iPad include GPS capabilities; WiFi Only models of iPad do not have any GPS - and this can negatively impact Mapping/Chart-plotting Applications.

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Ipads use for Navigation on Boats

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