How Many Watts of Electricity does a Iphone Charger use?
Real power-use measurements from a iphone charger.
By Rob Cockerham |
How Much Power does a Iphone Charger use
Iphone Charger: 4 Watts
- The iphone has a small rechargable battery. On my phone, with my usage, a charge lasts about one day. It doesn't take very much energy to charge the phone, but it does take about an hour.
- There is some concern that if you leave your transformer cord plugged into the wall that it uses some electricity. It doesn't.
- Watts: 4
- Kilowatts: 0.004 Kw.
- cost per minute: 0 hundredths of one cent (0 ¢)
- cost per hour: 5 hundredths of one cent (0¢)
- cost per day: 0¢
- cost per month: 7¢
Power use of these items was actually tested. Individual items will vary, but these are the actual measurements.