Battery Recharge Cost in Connecticut
Battery recharge cost depends on battery size and your local electricity price. Below are estimates for Connecticut based on the average residential rate. Data comes from EIA.
Electricity rate
30.35 ¢/kWh
1 kWh recharge
$0.30
5 kWh recharge
$1.52
13.5 kWh recharge
$4.10
Recharge Scenarios
| Battery size | Baseline recharge cost | Recharge cost with 10% charging losses |
|---|---|---|
| 1 kWh | $0.30 | $0.34 |
| 5 kWh | $1.52 | $1.69 |
| 13.5 kWh | $4.10 | $4.55 |
13.5 kWh Recharge vs National Average
13.5 kWh in Connecticut
$4.10
13.5 kWh nationally
$2.37
Difference
+$1.73 (+72.7%)
This page estimates the electricity cost to recharge a battery. It does not review products, battery chemistry, installation, or total ownership cost.
Recharge Cost by Battery Size
More Data & Comparisons
- Compare battery recharge cost with generator operating cost in Connecticut.
- Electricity cost in Connecticut — Rates, value score, affordability
- Electricity cost calculator for Connecticut — Usage-based estimates
- Average electricity bill in Connecticut — Monthly and annual bill estimates
- Full Connecticut knowledge page — Rates, value score, affordability, trends
- All states battery recharge cost
Related electricity pages
Frequently Asked Questions
- How much does it cost to recharge a 13.5 kWh home battery in Connecticut?
- At the average rate of 30.35¢/kWh, recharging a 13.5 kWh home battery costs approximately $4.10 (baseline) or about $4.55 with 10% charging losses.
- How much does it cost to recharge a 5 kWh backup battery in Connecticut?
- At the average rate of 30.35¢/kWh, recharging a 5 kWh backup battery costs approximately $1.52 (baseline) or about $1.69 with 10% charging losses.
- Why does battery recharge cost vary by state?
- Electricity prices vary significantly by state due to generation mix, transmission costs, regulations, and demand. Higher state rates mean higher recharge costs for the same battery capacity.
- Does charging efficiency affect battery recharge cost?
- Yes. Real-world charging typically has 5–15% losses (inverter, heat, etc.). At 90% efficiency, you draw about 11% more electricity from the grid than the battery stores. Our efficiency-adjusted estimates use a 90% charging efficiency factor.