Ever wondered what's actually happening inside your power bank when it starts to feel warm in your bag? Gulf News recently asked our co-founder Medy Navani exactly that, for a feature on the lithium battery risks travelers overlook before flying.
Here's a rundown of what the article covers, and why it matters beyond the airport.
Why Power Banks Are a Different Kind of Risk
As Medy explained to Gulf News, power banks don't get the same engineering scrutiny as the batteries built into your phone or laptop:
"Unlike phones or laptops, which are part of fully engineered and tightly controlled systems, power banks are often loosely regulated and widely sourced from varying levels of manufacturing quality."
Phone and laptop batteries are integrated, tested, and protected by multiple layers of hardware and software controls. Power banks, by contrast, are standalone battery packs that get "regularly transported, dropped and connected to multiple devices" every one of those is a chance for damage that isn't always visible.
What Actually Happens When a Battery Fails
When a lithium-ion cell is damaged or poorly made, it can enter what's called thermal runaway, a chain reaction that produces heat, smoke, and toxic gases, and it can escalate fast. Medy put the health risk plainly:
"When a lithium battery malfunctions, one of the first risks is the release of highly toxic gases. These are not ordinary fumes, they pose a serious threat to human health, particularly to the respiratory system."
That's also exactly the danger the EV1 is built to buy you time against, smoke and toxic fumes are usually the more immediate threat in a fire, not the flames themselves.
Warning Signs Worth Knowing
The article lists the signs that a power bank has gone bad and should be stopped using immediately:
- A swollen or puffed-out casing
- Unusual heat during charging or storage
- Visible cracks or leaks
- A strange or chemical odour
- Erratic or inconsistent charging performance
How to Buy and Travel Safely
Gulf News's safety recommendations, echoed across the experts interviewed, include buying only from authorized retailers, checking for proper certification (ECAS compliance), verifying watt-hour labelling before flying, and keeping power banks in cabin baggage only - never checked luggage, where a malfunction can't be caught early.