Replacement the battery of you helmet's rear light in six easy step. Warning:Contact your town's Solid Waste division to find out about rules and regulations on battery disposal in your area.
Rear light OFF
Step 1: remove cover with non-sharp tool
Step 2: remove circuit
Step 3: at the back of circuit push battery out with non-sharp tool
Step 4: prepare new battery (CR 2025 3V) with + sign up