Bro po ako. Anyway in Banawe, there is a shop named Jawe Marketing after Mc Donalds Orthopedic. They are one of the distributors of GS Battery. Be ready to replace it as soon as the warranty expires. Also keep the warranty card in a safe place.
On my bro's jazz, the Motolite Gold gave up ghost on its 18th month. It was replaced by a same model but only has 3 months out of the 21 months warranty.