Did I damage the lithium battery?
Hello All, I have a red light pad healing pad (infra- red and near infrared) that works by being attached to a controller that has a lithium ion battery.(electrical input 5V 2A. Battery capacity 3.65 V 2600 mAh, 9.49Wh. The battery is charged using a designated USB- C cable with a wall charger (I use the block from my MacBook pro).
I accidentally connected the lithium controller to my iPhone 15 with the phone USB-C cable. The phone was at 60% charged at the time and when I looked at it an hour later, it was drained to 3%.
Did I damage the battery of the controller? Is there a risk to the red-light pad in using the controller if it is damaged?
u/thedanceover — 5 days ago