I did some research and see that my Subaru cig lighter is 10amps. The DJI car charger uses 4 amps. The Jackery 160 power pack seems to use 3.5 amps to charge from cig lighter. So it's looking to me like I could use the cig lighter splitter to charge both the Jackery and the DJI car charger at the same time while driving because the total amps they use (7.5) is less than the 10 amps available. Is my reasoning correct?
Also, I'm not totally sure I understand how many drone batteries I can charge using a full Jackery 160 (167Wh) with the DJI car charger connected to its 12V output port. Since the batteries are 40Wh will I be able to charge close to 4 of them (4 * 40Wh = 160Wh) with the Jackery? On the Jackery website it says it will charge "2.5 drones (60W)" in one place and in another it says "3 drones (60W)". When they say 60W are they referring to a drone battery that is 1.5 times bigger than the DJI 40Wh battery so we could assume that it will charge more of the DJI batteries because they are only 40W?
It seems to me that if the above is possible then during 5 hours of driving with the splitter I could fully charge 3 DJI drone batteries using the hub connected to the car charger while at the same time fully charge the Jackery 160 which would allow me to charge another 3 or 4 batteries. Is my reasoning correct?
Many thanks!