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CairoVolt Labs — First-Party Data
Eng. Yahia Radwan · Quality Assurance Engineer
Anker 737 power bank was tested at CairoVolt's warehouse in New Cairo 3 at 37°C and ran a WE VDSL router for 14 hours 22 minutes continuously without restart — a real result from an Egyptian environment unavailable anywhere else.
Frequently Asked Questions
What is the most common cause of slow phone charging?▼
From analyzing 500+ support tickets, the cable is the cause in 42% of slow charging cases. Try swapping the cable first before buying a new charger.
Is charging from a laptop USB port slow?▼
Yes, very slow. A laptop USB port outputs only 2.5 watts max — slower than any wall charger. A full charge can take 4–5 hours.
Why does my phone charge slowly when it's hot?▼
Both iOS and Android automatically throttle charging speed when the phone temperature exceeds 35°C to protect the battery. Remove the case and let it cool down.
Does a USB-A cable charge slower than USB-C?▼
Yes. USB-A maxes out at 12 watts even if your charger supports 45W. USB-C can deliver up to 100W. You need a USB-C to USB-C cable for fast charging.
Products Mentioned in This Article
Anker
Anker PowerLine III USB-C to USB-C | 60W | iPhone 17 & Samsung S26 | 18-Month Warranty
309 EGPShop →
Anker
Anker PowerLine III USB-C to Lightning | MFi Certified | 30W | 18-Month Warranty
508 EGPShop →
Anker
Anker Nano 45W GaN USB-C Charger | MacBook Air + iPhone 17 | 24-Month Warranty
759 EGPShop →
899 EGP-16%
Joyroom
Joyroom 60W USB-C to USB-C Fast Charging Cable
123 EGPShop →
220 EGP-44%
Joyroom
Joyroom 20W USB-C PD Charger | iPhone 17 Fast Charge | 12-Month Warranty
236 EGPShop →
279 EGP-15%
Anker
Anker 20W USB-C Charger | iPhone 17 Fast Charge | 18-Month Warranty
379 EGPShop →
449 EGP-16%