photo sharing and upload picture albums photo forums search pictures popular photos photography help login
Type your message and click Add Comment
It is best to login or register first but you may post as a guest.
Enter an optional name and contact email address. Name
Name Email
help private comment
Compass Marine How To | all galleries >> Welcome To >> iPad Charging - How Much Energy? > 3:18 PM - 100% SOC
previous | next
3:18 PM - 100% SOC

3:18 PM - 100% SOC

While the iPad is a very efficient product it consumes more energy to charge it than many boat owners would assume, especially when run through an inverter.

On a small boat with a 100Ah battery bank the iPad could use approx 11% +/- of your usable Ah capacity, when charged via a small inverter. This is of course if we assume the owner is practicing good battery management and only drawing the bank to 50% depth of discharge leaving him or her with 50 usable Ah's..


Total Charging Time = 3:58

Average DC Current = -1.4 to -1.5A

Total Ah's Consummed* = -5.64 Ah (*to when the 100% icon appeared)

If using the iPad while charging it the current stays pretty steady at -1.5A when run through this inverter..

We often have three iPads on-board, plus phones and a laptop computer. The computer is an energy pig by comparison. When you add all these up you can easily break 20-30 Ah's per day if not careful.

other sizes: small medium large
comment | share