This is a charging station at a 711 convenience store in Herrera Street, Makati City. Just prepare 5 peso coins!
The charge rates are:
P5 for 10 Minutes Charge time
P10 for 20 minutes
P15 for 30 minutes
You can gorge on ice cream or some 711 goodies while you wait. By goodies, I mean that egg basket near the counter, TrekorTreat.org offers a review of that special 711 Balut.