When it comes to maintaining your SIG Romeo X Compact, one small detail causes a lot of frustration—the battery cap. Choosing the right tool makes the difference between a quick battery swap and permanent damage. Common Tools People Use (And Why They Fail) Coins Cheap and accessible—but unreliable and damaging. Screwdrivers Incorrect sizing leads to slipping and uneven force. Improvised Tools Usually the worst option—no proper fit at all. What to Look for in the Best Tool Ful