TempAlert stickers change from black to bright yellow when a lithium battery overheats — giving you a clear visual warning before things go wrong. No batteries. No apps. No guessing.
TempAlert uses thermochromic technology — a heat-sensitive material that will change colour when temperature of the battery reaches 60°C / 154°F. This being a point of battery performance degradation and a thermal risk if it continues to increase. When the temperature drops back down to a safe temperature the TempAlert will change back to black.
Remove the backing and expose the adhesive — exactly like any quality sticker. No tools. No wiring. No configuration.
Apply directly to the surface of your lithium battery. Works on e-bike packs, power tools, EV modules, forklift units — any flat battery surface.
Check the colour at a glance. Black means safe. Yellow means act now. No app required, no signal needed, visible from a distance.
Peace of mind shouldn’t require an engineering degree. TempAlert gives anyone with a lithium battery an instant visual check — no wiring, no setup, no app.
See Personal Use Packs →When you’re managing hundreds of batteries, a single fire costs $222,000 on average. TempAlert gives your team a passive early-warning system that works 24/7 with zero maintenance.
See Business Packs →No installation fee. No subscription. No training required. One sticker, and your battery will tell you when it’s in trouble — giving you piece of mind when monitoring your batteries.
Starting at less than the price of a coffee.
Your battery deserves TempAlert for safe early rising temperature warning.