▲ 1 r/batteries
Over time, gray spots have developed on the negative terminal of a relatively new LADDA 1900mAh battery. These spots cannot be removed with isopropyl alcohol, vinegar, or mechanical means. The battery has only been charged once and has only been used in the IKEA KORNSNÖ.
Could you please tell me what these gray spots mean?
u/HappyFlippo — 22 days ago