Review on 🚦 Enhance Road Safety with Boundery LED Road Flares Emergency Light Set - Ultimate Roadside Safety Discs for Your Car Emergency Kit - 6-Pack Safety Discs to Hang or Stick to Vehicles & Boats by Frank Garahana

This device is supplied without batteries. You need to remove two screws. The instructions say to press on the two tabs, although it's not clear if they're part of the lid or body, or if they're clamping tabs. They warn you that breaking the seal can be difficult. It was. Attaching the cover doesn't get much simpler. The screws go through the holes in the cover but are difficult to align with the recessed nuts on the bottom of the case. Once 18 AAA batteries (3 per unit) are installed, you've got a battery life of anywhere from 60 hours (on slightly dim settings) to just 10 hours on a constant bright light (like most LED lights, 15 LEDs are bright). Then guess what. That's right, it goes back to the difficult battery replacement. It shouldn't be that hard. I have a small LED flashlight (with fewer bulbs) that lasts longer and is MUCH easier to change the battery.