Why Won't My Light-Up Cubes Glow? Troubleshooting Guide
By Glo Pals - Light Up Sensory Bath Toys and Cubes | Published: 2026-10-17
Category: How-to Guides
If your Glo Pals light-up cubes have stopped glowing, this guide walks through the most common causes and simple fixes to restore their magic.
Quick answer
Most light-up cubes stop glowing because the internal battery contacts are wet or dirty. Try drying the cube completely, then tapping it gently. If it still doesn't glow, the battery may be exhausted—these cubes are designed for a limited number of uses and cannot be recharged.
Common reasons your cubes aren't glowing
Light-up cubes rely on a small battery and a water-activated switch. If the cube has been submerged for a long time or left in a damp environment, moisture can get inside and prevent the contacts from making a solid connection. This is the most frequent cause of a non-glowing cube.
Another possibility is that the cube's battery has simply run out. Glo Pals cubes are not rechargeable; they are designed for repeated short-term use until the battery depletes. If your cube has been used many times or stored for months, the battery may be at the end of its life.
Dropping or crushing the cube can also damage the internal mechanism. If the cube has visible cracks or the plastic feels soft, the internal switch may have broken. In that case, the cube cannot be repaired and should be replaced.
What you can try at home
First, remove the cube from any water and dry it thoroughly with a soft cloth. Shake it gently to remove any trapped water from the seam. Then, tap the cube lightly on a hard surface a few times. This can help the battery contacts realign if they have shifted slightly.
If the cube still doesn't glow, place it in a warm, dry spot (like a sunny windowsill or near a radiator) for a few hours. This helps evaporate any lingering moisture. Do not use a microwave or hair dryer, as heat can damage the plastic.
After drying, try activating the cube again by dropping it in water. If it glows, the fix was successful. If not, the battery is likely exhausted, and the cube has reached the end of its usable life.
Diagnosis: Symptom, Cause, Action, and When to Stop
- Symptom: Cube does not glow when placed in water. Check for visible damage first.
- Likely cause: Moisture inside the cube or exhausted battery. If the cube has been used many times, battery depletion is the primary suspect.
- Corrective action: Dry the cube thoroughly, tap it gently, and try again after a few hours in a warm, dry place. If it glows after drying, the cube is saved.
- When to stop and replace: If the cube still does not glow after drying and tapping, the battery is dead. Light-up cubes are not designed to be opened or repaired. Replace the cube with a new one from a 6-Pack or 4-Pack.
Products that work with this guide
- Zoo Light-Up Cubes 6-Pack: 🦁 ZOO THEMED LIGHT-UP CUBES 🦁 Playtime becomes an exciting sensory adventure, and imagination will run wild with our new Zoo Light-Up Cubes! These glowing Cubes will keep little zookeepers engaged as they explore and learn with all of these adorable animals. If you have the Zoo 6-Pack, the same troubleshooting steps apply. Each cube is individually activated by water, so a non-glowing cube may simply need drying.
- Princess Ida™ Light-Up Cubes 4-Pack: Bring a little more magic to every splash with Princess Ida™ Light-Up Cubes. These award-winning Cubes automatically glow pink when dropped in water and turn off when removed. The Princess Ida 4-Pack uses the same water-activated mechanism. If one cube stops glowing, the drying and tapping method works here too.
