A full charge for a power station (large battery) uses roughly 2.0 kWh of energy under typical conditions.
| Electricity Rate | Cost per Full Charge |
|---|---|
| $0.12/kWh (low) | $0.24 |
| $0.16/kWh (US average) | $0.32 |
| $0.25/kWh (high) | $0.5 |
Why it matters
Even frequent charging of a power station (large battery) adds up to a small fraction of most household electricity bills — it’s rarely worth optimizing charging habits purely for cost savings at this scale.