When night bites turn subtle and cold-water fish like walleye, crappie, and catfish only tap the rod tip, the Rod-N-Bobb's Tackle Beacon Rod Tip Strike Indicator Replacement Battery keeps your strike indicator glowing so you never miss a take during evening shore fishing, ice fishing, or low-light boat sessions. Fits Rod-N-Bobb's Rod Tip Light Indicator for quick, hassle-free replacement 4 mm 3V BR435 pin battery matches original power specs for consistent brightness Supports reliable bite detection during night fishing, ice fishing, and low-visibility conditions Compact pin-style battery stores easily in tackle bags, sleds, and boat compartments Quantity per pack: 1