SOK Battery 48V 100Ah Server Rack LiFePO4 vs Docan Power 48V 100Ah Server Rack LiFePO4
The Docan Power 48V 100Ah Server Rack LiFePO4 wins this battery comparison by a clear margin. It delivers 4.1 kWh of usable storage with 5.12 kW continuous output and a 6,000-cycle rating. While capacity is matched, the Docan Power 48V 100Ah Server Rack LiFePO4 compensates with superior power delivery and longevity.
Key Differences
- • Both provide 4.1 kWh of usable storage capacity.
- • SOK Battery 48V 100Ah Server Rack LiFePO4 achieves 96% round-trip efficiency vs 95%.
- • Docan Power 48V 100Ah Server Rack LiFePO4 is rated for 6,000 cycles vs 4,000.
Specifications Breakdown
Usable Storage Capacity
The SOK Battery 48V 100Ah Server Rack LiFePO4 provides 4.1 kWh of usable capacity (5.12 kWh total, 80% DoD), while the Docan Power 48V 100Ah Server Rack LiFePO4 offers 4.1 kWh usable (5.12 kWh total, 80% DoD). At an average essential-load consumption rate of 750 watts, the SOK Battery 48V 100Ah Server Rack LiFePO4 provides approximately 5.5 hours of backup versus 5.5 hours for the Docan Power 48V 100Ah Server Rack LiFePO4. Identical usable capacity means both provide the same backup duration and daily cycling ability. The SOK Battery 48V 100Ah Server Rack LiFePO4 is scalable up to 15 units (61 kWh total), while the Docan Power 48V 100Ah Server Rack LiFePO4 scales up to 16 units (66 kWh total).
Power Output
The SOK Battery 48V 100Ah Server Rack LiFePO4 delivers 5.12 kW continuous and 7.68 kW peak power, while the Docan Power 48V 100Ah Server Rack LiFePO4 provides 5.12 kW continuous and 7.68 kW peak. Matched power output means both can run the same combination of appliances simultaneously. Peak power rating matters for motor-driven loads with high startup current, such as air conditioners, well pumps, and sump pumps. The Docan Power 48V 100Ah Server Rack LiFePO4's 7.68 kW peak is suitable for lighter startup loads.
Battery Chemistry & Cycle Life
The SOK Battery 48V 100Ah Server Rack LiFePO4 uses LFP chemistry with a rated cycle life of 4,000 cycles (approximately 11.0 years of daily cycling), while the Docan Power 48V 100Ah Server Rack LiFePO4 uses LFP with 6,000 cycles (approximately 16.4 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 Docan Power 48V 100Ah Server Rack LiFePO4's additional 2,000 cycles translates to approximately 5.5 more years of daily use before reaching the rated end of life.
Round-Trip Efficiency
The SOK Battery 48V 100Ah Server Rack LiFePO4 achieves 96% round-trip efficiency versus 95% for the Docan Power 48V 100Ah Server Rack LiFePO4. This means for every 10 kWh of solar energy stored in the SOK Battery 48V 100Ah Server Rack LiFePO4, 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 SOK Battery 48V 100Ah Server Rack LiFePO4 carries a 5-year warranty, while the Docan Power 48V 100Ah Server Rack LiFePO4 offers 5 years. Both offer identical warranty duration. 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 | SOK Battery 48V 100Ah Server Rack LiFePO4 | Docan Power 48V 100Ah Server Rack LiFePO4 |
|---|---|---|
| Capacity | 5.12 kWh | 5.12 kWh |
| Usable Capacity | 4.1 kWh | 4.1 kWh |
| Power Output | 5.12 kW | 5.12 kW |
| Chemistry | LFP (Lithium Iron Phosphate) | LFP (Lithium Iron Phosphate) |
| Efficiency | 96% | 95% |
| Cycle Life | 4,000 | 6,000 |
| Weight | 39.9 kg | 42.2 kg |
| Warranty | 5 years | 5 years |
| Scalable | Yes | Yes |
5-Dimension Head-to-Head Analysis
1. Storage Capacity
Winner: TieBoth batteries provide 4.1 kWh of usable storage — identical backup duration for the same household loads.
2. Power Output
Winner: TieBoth deliver 5.12 kW continuous output — identical ability to power household loads simultaneously.
3. Chemistry & Longevity
Winner: Docan Power 48V 100Ah Server Rack LiFePO4Both use LFP chemistry with SOK Battery 48V 100Ah Server Rack LiFePO4 at 4,000 cycles vs Docan Power 48V 100Ah Server Rack LiFePO4 at 6,000 cycles. LFP chemistry provides excellent thermal stability, long cycle life, and no cobalt dependency.
4. Round-Trip Efficiency
Winner: SOK Battery 48V 100Ah Server Rack LiFePO4The SOK Battery 48V 100Ah Server Rack LiFePO4 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: TieBoth carry 5-year warranties — equal long-term manufacturer protection.
SOK Battery 48V 100Ah Server Rack LiFePO4
The SOK Battery 48V 100Ah Server Rack LiFePO4 delivers 5.12 kWh in a standard rack-mount form factor with CAN/RS485 communication for inverter integration and built-in Bluetooth monitoring. With 4,000+ cycle life at 80% DoD, 150A peak discharge, and support for up to 15 units in parallel (76.8 kWh), it bridges the gap between budget rack batteries and premium residential systems. SOK's reputation for quality BMS engineering and responsive customer support has made it a favorite among DIY whole-home storage builders.
Pros
- + Built-in Bluetooth plus CAN/RS485 communication for comprehensive monitoring
- + 150A peak discharge handles motor startup surges
- + Up to 15 units in parallel for 76.8 kWh total — highly scalable
- + 4,000+ cycle life with premium BMS quality at a mid-range price
Cons
- - $1,099-1,299 pricing is higher than budget 48V rack alternatives like Docan or Eco-Worthy
- - 80% DoD limits usable capacity to 4.10 kWh per unit
- - 39.9 kg requires sturdy rack mounting
- - 5-year warranty does not match premium brands offering 10-12 years
Docan Power 48V 100Ah Server Rack LiFePO4
The Docan Power 48V 100Ah Server Rack LiFePO4 is one of the most aggressively priced 48V server rack batteries on the market, delivering 5.12 kWh of LFP storage with an impressive 6,000+ cycle life at 80% DoD. CAN/RS485 communication enables integration with popular hybrid inverters including EG4, Sol-Ark, and Victron. With up to 16 units in parallel (81.9 kWh), it provides a cost-effective path to large-scale DIY energy storage. Note: this battery does not carry UL certification.
Pros
- + Exceptional value at $499-599 — among the cheapest 48V 5kWh rack batteries available
- + 6,000+ cycle life at 80% DoD — significantly longer than most budget alternatives
- + CAN/RS485 communication for hybrid inverter integration
- + Up to 16 units in parallel for 81.9 kWh total capacity
Cons
- - No UL certification — may not meet local building code requirements
- - Less established brand with limited track record and customer support
- - 80% DoD limits usable capacity to 4.10 kWh per unit
- - No Bluetooth monitoring — relies on inverter for system status
Choose SOK Battery 48V 100Ah Server Rack LiFePO4 If...
- ✓ You want to minimize energy losses during daily charge/discharge cycling
- ✓ DIY whole-home storage builders who want premium BMS quality, Bluetooth monitoring, and strong inverter communication in a 48V server rack battery
Choose Docan Power 48V 100Ah Server Rack LiFePO4 If...
- ✓ Maximum battery longevity (6,000 cycles) is your top priority
- ✓ You want the flexibility to expand storage capacity over time (up to 16 units)
- ✓ Budget-focused DIY builders comfortable without UL certification who want maximum kWh per dollar in a 48V server rack form factor
Our Recommendation
We recommend the Docan Power 48V 100Ah Server Rack LiFePO4 for most buyers in this comparison. It wins 1 of 5 key dimensions and offers a clear advantage in the metrics that matter most for a battery purchase. The SOK Battery 48V 100Ah Server Rack LiFePO4 remains a good product, but the Docan Power 48V 100Ah Server Rack LiFePO4 delivers better overall value for the majority of installations.
Frequently Asked Questions
Which is better, SOK Battery 48V 100Ah Server Rack LiFePO4 or Docan Power 48V 100Ah Server Rack LiFePO4?
The Docan Power 48V 100Ah Server Rack LiFePO4 wins this battery comparison by a clear margin. It delivers 4.1 kWh of usable storage with 5.12 kW continuous output and a 6,000-cycle rating. While capacity is matched, the Docan Power 48V 100Ah Server Rack LiFePO4 compensates with superior power delivery and longevity.
Which battery lasts longer?
The SOK Battery 48V 100Ah Server Rack LiFePO4 is rated for 4,000 cycles versus 6,000 for the Docan Power 48V 100Ah Server Rack LiFePO4. Docan Power 48V 100Ah Server Rack LiFePO4 lasts approximately 5 more years of daily cycling. LFP chemistry generally outlasts NMC in cycle life testing.
Which battery provides more backup power?
The SOK Battery 48V 100Ah Server Rack LiFePO4 provides 5.12 kW continuous (7.68 kW peak) versus 5.12 kW continuous (7.68 kW peak) for the Docan Power 48V 100Ah Server Rack LiFePO4. Both deliver identical continuous power. A central AC typically needs 3-5 kW, a refrigerator 0.2 kW, and an EV charger 7-11 kW.
Can I expand SOK Battery 48V 100Ah Server Rack LiFePO4 or Docan Power 48V 100Ah Server Rack LiFePO4 storage later?
SOK Battery 48V 100Ah Server Rack LiFePO4: Yes, up to 15 units for 61 kWh total. Docan Power 48V 100Ah Server Rack LiFePO4: Yes, up to 16 units for 66 kWh total. Docan Power 48V 100Ah Server Rack LiFePO4 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.
Related Resources
Last updated: February 2026