https://jbbattery.com.au/blogs/emergency-light-facts/the-heart-of-every-emergency-light-why-the-battery-matters-most 2026-05-05T11:08:24+10:00 weekly https://cdn.shopify.com/s/files/1/0712/9559/8784/articles/exit-lights-9-1000x667.jpg?v=1762816635 The Heart of Every Emergency Light: Why the Battery Matters Most