There are many different words that can be used as synonyms for the word "chargings." Some of the most common options include billing, invoicing, pricing, costing, and assessing fees. Other potential synonyms might include taxing, levying, collecting, or demanding payment. Depending on the context in which the word is being used, there may be other words that could be appropriate as well. For example, if the focus is on the act of providing energy to a device, words such as powering, energizing, or battery-ing might be used instead. Ultimately, choosing the right synonym will depend on the specific meaning and intent of the sentence or phrase in question.