As one of its daily deals, Amazing Deals Online via Amazon offers Prime members the Photive 60-watt 6-Port USB Rapid Charger, model no. PH-50W, for $19.88 with free shipping. (Non-members can spend $49 or more to bag free shipping; otherwise, shipping costs $6.55.) That's $5 under our July mention of the 50-watt model and the lowest total price we could find by $11. It features overcharge protection. Deal ends today.