LiFePO4 Battery Knowledge

What LiFePO4 actually is, how it behaves in service, and where it beats or loses to the alternatives — the reference layer under every product page on this site.

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LiFePO4 questions

The questions that come before an order.

What is a LiFePO4 battery?

A lithium battery whose cathode is lithium iron phosphate instead of nickel-cobalt chemistry. It stores less energy per kilogram, but it is more thermally stable and lasts several times longer.

LiFePO4 or lithium-ion — which is better?

For stationary storage, boats, RVs and traction, LiFePO4. For phones, laptops and long-range cars where weight dominates, higher-density NMC chemistries still win.

What voltage is a LiFePO4 cell?

Nominal 3.2V, charged to 3.65V, and usually discharged to around 2.5V. That is why packs are labelled 12.8V, 25.6V or 51.2V rather than 12V, 24V and 48V.

How many cycles does LiFePO4 last?

A good cell gives 4,000–6,000 cycles at 80% depth of discharge. Cheap cells with a weak BMS may give a third of that — the BMS and the temperature decide the rest.

Is LiFePO4 safe?

It is the safest lithium chemistry in wide use: no thermal runaway cascade in normal abuse, no cobalt, and stable at temperatures where NMC packs would vent.