Lithium-Ion Solar Batteries
The most popular home solar battery technology, offering high energy density and long cycle life for residential energy storage.
Key Specifications
| Capacity Range | 5-20 kWh per unit |
| Round-Trip Efficiency | 90-95% |
| Cycle Life | 5,000-10,000 cycles |
| Lifespan | 10-15 years |
| Depth of Discharge | 80-100% |
| Chemistry Types | NMC, LFP |
Pros
- +Highest energy density
- +Excellent round-trip efficiency
- +Long cycle life (especially LFP)
- +Compact size for home installation
- +Well-proven technology
Cons
- -Higher upfront cost
- -Requires battery management system
- -Performance degrades over time
- -Temperature sensitive
- -Potential fire risk (NMC)
Best For
Homeowners wanting backup power, time-of-use rate optimization, or off-grid capability with their solar system.
Average Cost
$800-$1,200 per kWh installed
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