Enphase IQ Battery 5P vs Eco-Worthy 12V 100Ah LiFePO4
The Enphase IQ Battery 5P wins this battery comparison by a decisive margin. It delivers 5 kWh of usable storage with 3.84 kW continuous output and a 8,000-cycle rating, backed by a longer 15-year warranty. The 4.0 kWh capacity advantage provides 5 additional hours of essential-load backup.
Key Differences
- • Enphase IQ Battery 5P provides 5 kWh vs 1.02 kWh usable capacity.
- • Enphase IQ Battery 5P achieves 96% round-trip efficiency vs 95%.
- • Enphase IQ Battery 5P offers a longer 15-year warranty vs 5 years.
- • Enphase IQ Battery 5P is rated for 8,000 cycles vs 3,000.
Specifications Breakdown
Usable Storage Capacity
The Enphase IQ Battery 5P provides 5 kWh of usable capacity (5 kWh total, 100% DoD), while the Eco-Worthy 12V 100Ah LiFePO4 offers 1.02 kWh usable (1.28 kWh total, 80% DoD). At an average essential-load consumption rate of 750 watts, the Enphase IQ Battery 5P provides approximately 6.7 hours of backup versus 1.4 hours for the Eco-Worthy 12V 100Ah LiFePO4. The Enphase IQ Battery 5P's 4.0 kWh capacity advantage translates to roughly 5 additional hours of essential-load backup during a grid outage. The Enphase IQ Battery 5P is scalable up to 8 units (40 kWh total), while the Eco-Worthy 12V 100Ah LiFePO4 scales up to 4 units (4 kWh total).
Power Output
The Enphase IQ Battery 5P delivers 3.84 kW continuous and 5.76 kW peak power, while the Eco-Worthy 12V 100Ah LiFePO4 provides 1.28 kW continuous and 1.92 kW peak. The Enphase IQ Battery 5P's higher continuous output means it can simultaneously power more demanding appliances during an outage. A central air conditioner typically draws 3-5 kW, a refrigerator 0.1-0.2 kW, and an EV Level 2 charger 7-11 kW. Peak power rating matters for motor-driven loads with high startup current, such as air conditioners, well pumps, and sump pumps. The Enphase IQ Battery 5P's 5.76 kW peak is suitable for lighter startup loads.
Battery Chemistry & Cycle Life
The Enphase IQ Battery 5P uses LFP chemistry with a rated cycle life of 8,000 cycles (approximately 21.9 years of daily cycling), while the Eco-Worthy 12V 100Ah LiFePO4 uses LFP with 3,000 cycles (approximately 8.2 years). Both use LFP chemistry, which is considered the gold standard for residential energy storage due to its inherent safety, long cycle life, and environmental friendliness. The Enphase IQ Battery 5P's additional 5,000 cycles translates to approximately 13.7 more years of daily use before reaching the rated end of life.
Round-Trip Efficiency
The Enphase IQ Battery 5P achieves 96% round-trip efficiency versus 95% for the Eco-Worthy 12V 100Ah LiFePO4. This means for every 10 kWh of solar energy stored in the Enphase IQ Battery 5P, 9.6 kWh is recoverable, compared to 9.5 kWh for the other. Over 10 years of daily cycling with 15 kWh average daily throughput, the more efficient battery saves approximately $82 in energy that would otherwise be lost as heat (at $0.15/kWh average retail rate). Higher round-trip efficiency is especially valuable in time-of-use rate environments where you are storing cheap off-peak energy for expensive peak-hour consumption.
Warranty & Long-Term Protection
The Enphase IQ Battery 5P carries a 15-year warranty, while the Eco-Worthy 12V 100Ah LiFePO4 offers 5 years. The Enphase IQ Battery 5P provides 10 additional years of manufacturer protection against capacity degradation and defects. Battery warranties typically guarantee the unit will retain 60-70% of original capacity by end of warranty, so the length of coverage directly impacts your financial risk over the system's lifetime.
Specification Comparison
| Specification | Enphase IQ Battery 5P | Eco-Worthy 12V 100Ah LiFePO4 |
|---|---|---|
| Capacity | 5 kWh | 1.28 kWh |
| Usable Capacity | 5 kWh | 1.02 kWh |
| Power Output | 3.84 kW | 1.28 kW |
| Chemistry | LFP (Lithium Iron Phosphate) | LFP (Lithium Iron Phosphate) |
| Efficiency | 96% | 95% |
| Cycle Life | 8,000 | 3,000 |
| Weight | 68 kg | 11 kg |
| Warranty | 15 years | 5 years |
| Scalable | Yes | Yes |
5-Dimension Head-to-Head Analysis
1. Storage Capacity
Winner: Enphase IQ Battery 5PThe Enphase IQ Battery 5P provides 5 kWh versus 1.02 kWh — 4.0 kWh more usable storage. At typical essential-load consumption of 0.75 kW, this equals approximately 5 additional hours of backup power. This is a substantial capacity gap.
2. Power Output
Winner: Enphase IQ Battery 5PThe Enphase IQ Battery 5P delivers 3.84 kW continuous versus 1.28 kW. Best suited for essential loads like lights, refrigerator, and electronics. The power difference is modest for most backup scenarios.
3. Chemistry & Longevity
Winner: Enphase IQ Battery 5PBoth use LFP chemistry with Enphase IQ Battery 5P at 8,000 cycles vs Eco-Worthy 12V 100Ah LiFePO4 at 3,000 cycles. LFP chemistry provides excellent thermal stability, long cycle life, and no cobalt dependency.
4. Round-Trip Efficiency
Winner: Enphase IQ Battery 5PThe Enphase IQ Battery 5P achieves 96% round-trip efficiency versus 95%. Over 10 years of daily cycling with 15 kWh throughput per day, the more efficient battery saves approximately 82 dollars in energy that would otherwise be lost as heat (at $0.15/kWh). The difference is moderate but compounds over the battery's lifespan.
5. Warranty Coverage
Winner: Enphase IQ Battery 5PThe Enphase IQ Battery 5P offers a 15-year warranty versus 5 years. This is among the longest battery warranties in the residential market.
Enphase IQ Battery 5P
The Enphase IQ Battery 5P is a compact, microinverter-based energy storage system featuring LFP chemistry and six embedded IQ8 microinverters for module-level monitoring and redundancy. With 96% round-trip efficiency and a 15-year warranty, it delivers industry-leading energy retention. The modular 5 kWh capacity allows homeowners to start small and expand up to 40 kWh with eight units. It integrates seamlessly with the Enphase IQ ecosystem and IQ System Controller 2 for whole-home backup.
Pros
- + Industry-leading 96% round-trip efficiency
- + Microinverter architecture provides module-level monitoring and redundancy
- + 15-year warranty is among the longest in the residential market
- + Compact form factor with straightforward wall-mount installation
Cons
- - 5 kWh base capacity requires multiple units for whole-home backup
- - Higher per-kWh cost compared to larger monolithic battery systems
Eco-Worthy 12V 100Ah LiFePO4
The Eco-Worthy 12V 100Ah LiFePO4 is a compact, affordable lithium iron phosphate battery designed for DIY solar, RV, and marine applications. With a built-in 100A BMS, 1.28 kWh capacity, and 3,000+ cycle life at 80% DoD, it delivers reliable energy storage at a budget-friendly price point. Supports parallel (up to 4) and series (up to 4 for 48V) connections for flexible system expansion.
Pros
- + Extremely affordable at $189-220 — among the lowest-cost LiFePO4 options
- + Built-in 100A BMS with overcharge, over-discharge, and short circuit protection
- + Supports both parallel (4P) and series (4S for 48V) configurations
- + Lightweight at 11 kg — easy to handle for DIY installation
Cons
- - Limited 1.28 kWh capacity requires multiple units for meaningful storage
- - 80% DoD is lower than premium batteries offering 100% DoD
- - No Bluetooth or smart monitoring — basic BMS only
- - 5-year warranty is shorter than premium residential batteries
Choose Enphase IQ Battery 5P If...
- ✓ You need more backup storage to cover overnight consumption or extended outages
- ✓ You need to power demanding appliances (AC, EV charger) simultaneously during outages
- ✓ Maximum battery longevity (8,000 cycles) is your top priority
- ✓ You want to minimize energy losses during daily charge/discharge cycling
- ✓ A 15-year warranty gives you the confidence you need
Choose Eco-Worthy 12V 100Ah LiFePO4 If...
- ✓ Budget-conscious DIY builders, RV owners, and off-grid enthusiasts needing affordable 12V LiFePO4 storage
Our Recommendation
The Enphase IQ Battery 5P is the decisive winner in this battery comparison, outperforming the Eco-Worthy 12V 100Ah LiFePO4 in 5 of 5 dimensions. Unless you have a specific requirement that the Eco-Worthy 12V 100Ah LiFePO4 uniquely addresses, the Enphase IQ Battery 5P is the stronger choice for virtually every installation scenario.
Frequently Asked Questions
Which is better, Enphase IQ Battery 5P or Eco-Worthy 12V 100Ah LiFePO4?
The Enphase IQ Battery 5P wins this battery comparison by a decisive margin. It delivers 5 kWh of usable storage with 3.84 kW continuous output and a 8,000-cycle rating, backed by a longer 15-year warranty. The 4.0 kWh capacity advantage provides 5 additional hours of essential-load backup.
Which battery lasts longer?
The Enphase IQ Battery 5P is rated for 8,000 cycles versus 3,000 for the Eco-Worthy 12V 100Ah LiFePO4. Enphase IQ Battery 5P lasts approximately 14 more years of daily cycling. LFP chemistry generally outlasts NMC in cycle life testing.
Which battery provides more backup power?
The Enphase IQ Battery 5P provides 3.84 kW continuous (5.76 kW peak) versus 1.28 kW continuous (1.92 kW peak) for the Eco-Worthy 12V 100Ah LiFePO4. Enphase IQ Battery 5P can run more appliances simultaneously during an outage. A central AC typically needs 3-5 kW, a refrigerator 0.2 kW, and an EV charger 7-11 kW.
Can I expand Enphase IQ Battery 5P or Eco-Worthy 12V 100Ah LiFePO4 storage later?
Enphase IQ Battery 5P: Yes, up to 8 units for 40 kWh total. Eco-Worthy 12V 100Ah LiFePO4: Yes, up to 4 units for 4 kWh total. Enphase IQ Battery 5P offers more expansion potential.
Which battery chemistry is safer?
Both use LFP (Lithium Iron Phosphate) chemistry, which is the safest lithium battery chemistry for residential use. LFP does not undergo thermal runaway, uses no cobalt, and is inherently stable.
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Last updated: February 2026