Here are some good analytical reviews of USB power hardware, including safety: <a href="http:&#x2F;&#x2F;www.lygte-info.dk&#x2F;info&#x2F;indexUSB%20UK.html" rel="nofollow">http:&#x2F;&#x2F;www.lygte-info.dk&#x2F;info&#x2F;indexUSB%20UK.html</a><p>In general I buy Anker stuff - decent pricing and solid stability&#x2F;quality&#x2F;safety.