Intension is what?
When we remove vk from hand or ask a request there is always a intension is running in mind. Without any intention or purpose to heal any cause why would one charge a water bottle or place a request to VK. Intention are always keep in mind, chanted silently or loudly as we pray in front of god.
@Saibisa ji method 4 suggested above is for the water bottle one is charging for people residing at far place. In that case user intent image as it is physically present in front and charging the same with VK. Choosing of appropriate energy in any case is on the behalf of intetion to heal that particular issue but here we also intent or asume the water bottle is in front of us.