'Quasi plug-in' is just a term I used for it. S&B says you can use Mighty plugged in even when the batteries are depleted. But it does not have what's referred to as true pass-thru charging. A pass thru piece can both operate as device and charge battery at the same time.
If you plug Mighty in and turn it on when it's down a bar or two, you can see that the bars stay on (not blinking) until temp is reached (battery is being depleted by use), then bars begin to blink, charging only in-between the pulses of heat that keep Mighty in proper temp range. On balance, the charging goes faster than the depletion, so eventually all the bars look full.
If you use Mighty plugged in while it's already fully charged, you don't even see a bar disappear or any blinking, it seems to ride right near a topped off level. I think it is still cycling between heat and charge, but not enough differential to makes lights say anything more than "I'm full!"
One user was told by S&B rep that this plugged in use while fully charged is a good practice.
Other battery-heads seem to recommend that these batteries like to be maintained between about 20% and 80%. In Crafty, that would take a lot of user attention and given what I already said about Crafty not keeping up with my use, I abandoned most 'good practice' about charging. Not that I'm an angel with Mighty, I tend to keep it plugged in a lot, and use it plugged in about 70% of the time.
btw, I don't think my charging habits had much, if anything, to do with the eventual failures of my Crafty's.
Now I've talked down the Crafty too much here and it's not the Mighty thread so I'll stop.
Sorry to bring on the buyer's remorse there,
@dusdat . Or is it just a subset case of VAS? Some folks just have both Crafty and Mighty!
Idk what your chance of exchange is, gut feeling is that your better option may come on a warranty exchange. I once asked about upgrade and they only offered a $100 discount on Mighty if I wanted to exchange my 4 month old Crafty that needed a battery. I chose to replace the battery for 50 bucks (that's gone up). Or possibly selling Crafty privately. There is a classified 'thread' here at FC.
Meantime, enjoy the ride, these thing work great!
Edit: I just noticed
@dusdat that your purchase was from Amazon. I have no idea what your return or exchange options might be!
wow. 500 hrs. You sir are the motherf#&*ing Man! I'd just like to know how your crafty performs after modifying. Does it ever overheat? Are you able to do back to back session's without issue? Is your battey life improved/do you swap your battery?..... Have you ever outfitted anyone elses Crafty for a fee?? Would be amazing to have the confidence that ones Craft will last beyond 500 hours!! Have you ever sent pictures to S&B showing them your milestone? If not, why?!....
. Not sure if it looks better now.
