Keep Cash or Cards in Your Phone Cover? Beware of These Hidden Risks

Many smartphone users have a habit of keeping cash, debit/credit cards, or metro cards in their phone’s back cover. While it may seem convenient, experts warn that this practice can seriously damage your phone and even affect the cards themselves.

Why It’s Harmful
Smartphones generate heat while in use—during gaming, video streaming, or prolonged internet use. Placing cash or cards inside the back cover traps heat, preventing it from dissipating. This excessive heat can damage the battery, shorten the phone’s lifespan, and slow down performance. The problem becomes worse while charging, as the device heats up even more.

Network and Signal Issues
Many smartphones have antennas at the top. Cards with magnetic strips or chips can interfere with signal reception. This may cause call drops, slow internet, and weak network connectivity, especially when cards are stored inside the phone cover.

Damage to Cards and Cash
Keeping money or cards in a phone cover can also harm the items themselves. Heat can warp or discolor banknotes, and magnetic strips on debit/credit cards may get damaged, rendering them unusable. Even wireless charging can be negatively affected by cards in the cover.

Expert Advice
For your phone’s health and the safety of your money, experts recommend avoiding storing cards or cash inside the phone cover. Instead, use a wallet or dedicated cardholder to prevent long-term damage to both your smartphone and your valuables.