Then what device should I be looking at ? I just want to know how much juice is left so i lnow how much longer I can use the system for . I will have 3 individual batteries that need to be monitored separately <| sep |> Well they gonna get the ball back with time have to make sure to get a td here <| sep |> I think you can , personally i wouln ' t since depending on where you live shipping 4 pairs from china is like saying to customs SEIZE THIS PACKAGE <| sep |> First , pick your prey , one of your PCs . During city village downtime , they only meet the NPC whenever they are alone . Afterwards they meet this guy as a group , and no one sees him but your target . Turns out this is a creature basically possessing the PC ' s mind . Some sort of mind parasite that is made of memory . Every time it is strong enough , it projects itself as real for that PC , reinforcing itself . Now it ' s strong enough to stay . As the parasite grows stronger , it starts taking shape , appearing first as incorporeal images to other people , and then in flesh . Any attacks against this corporeal form deal damage to the PC instead . At the same time , drawbacks kick in . See , a single brain is only used to supporting a single mind . Now it ' s working in overdrive . The PC has 1 permanent exhaustion level that is not relieved by long rests until the parasite is dealt with . Getting rid of this Modify memory at appropriate level based on how long ago the parasite took hold . With memory of the parasite erased , it cannot survive . Remove curse at 5 th level modify memory . Remove curse weakens the link between the parasite and the infected mind , so that usual limitations of modify memory don ' t apply . Anything that drops victim ' s Intelligence score below 3 . Mind parasite can only survive in intelligent minds .