Thank you, order placed.It attaches with two o-rings. If using the standard Teric charger the cover has to come off to charge. We have had zero reports of scratching and have sold hundreds, if not thousands, of the Teric covers.
We have found that a Peregrine charger works great and you can just lay the Teric flat on the Peregrine charger and it will charge just fine with the AMX cover in place.
We sell Peregrine chargers on our site for $40SD if this is a direction that is appealing.