“I wondered why my raspberry pi's were acting strangely , then I found out - The phone charger power supply was only 5.0v 2A. Raspberry pi needs 5.1v 2.5A.
Ordered some of these Official Raspberry Pi power supplies - problem solved.
Delivered next day so didn't have to wait long !”
“Excellent quality, i bought one to replace a failed Pi supply and two spares just in case I need them.
I have replaced two other Pi Power Supplies and have already noticed a difference in the consistency and reliability of my Pi based CCTV and MiniDLNA units.
I will be buying more of these Power Supplies for my other Pi units.”