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How Long Do LiFePO4 Batteries Last? The Complete Lifespan Guide

LiFePO4 Cycle Life Explained

Dakota Lithium LiFePO4 batteries are engineered for extreme longevity. Here is what you can expect:

  • 4,000 cycles at 100% depth of discharge (DoD)
  • 5,000 cycles at 80% DoD
  • 7,000+ cycles at 50% DoD

For most users, this translates to 10+ years of daily use. Compare that to lead-acid batteries, which typically last 300-500 cycles — that is 10x the lifespan.

What Does “Cycle Life” Mean?

One cycle equals a full discharge and recharge. If you use 50% of your battery capacity each day, that counts as half a cycle. At 50% DoD, your Dakota Lithium battery will last over 7,000 half-cycles — potentially 15+ years of real-world use.

The 11-Year Warranty

Every Dakota Lithium battery comes with an industry-leading 11-year warranty. This is not a prorated warranty — it is full replacement coverage. No other battery manufacturer offers this level of confidence in their product.

Cost Per Cycle: The Real Comparison

Metric LiFePO4 Lead-Acid
Cycle Life 3,000-5,000 300-500
Cost Per Cycle C$0.18 C$0.60
Warranty 11 years 1-2 years
Usable Capacity 100% 50%

Even though LiFePO4 costs more upfront, the total cost of ownership is 3x lower than lead-acid over the battery lifetime.

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