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LiFePO4 vs NMC: what battery chemistry means in a power station

By the Ferncharge team · Figures last checked

Advertising disclosure: This page contains no affiliate links.

The short answer: spec sheets name the battery chemistry, usually LiFePO4 (lithium iron phosphate, also written LFP) or NMC (lithium nickel manganese cobalt oxide). Anker's UK explainer says NMC stores more energy for its weight, while LFP "might be heavier or bulkier" for the same capacity and has "superior thermal stability" (Anker SOLIX UK). Chemistry also changes how makers quote cycle life, and the basis they use isn't always the same, so read the small print rather than the headline number.

Based on manufacturers' published statements. Ferncharge has not tested these products. We don't rank chemistries or models.

What the maker says about each

From Anker SOLIX's UK explainer (Anker SOLIX UK, 14 November 2025):

LiFePO4 (LFP)NMC
Energy for the weightLower: "for the same capacity, it might be heavier or bulkier"Higher energy density
Thermal stability"Superior thermal stability"; "less prone to thermal runaway or fire propagation compared to NMC"Anker says it "may require more sophisticated battery management systems (BMS)"

This is one maker's explanation. Anker sells LFP power stations. Check the spec sheet and manual for the model you're looking at.

How makers state cycle life

A cycle is one full charge and discharge, or the equivalent. A cycle-life figure says how many cycles until the battery holds a stated share of its original capacity. That share is the basis, and it differs between makers. Three LFP examples, as each maker states them:

  • BLUETTI AC180: "3,500+ Cycles to 80% Original Capacity" (BLUETTI UK).
  • Jackery Explorer 1000 v2: "4000 cycles to 70%+ capacity" in the user manual (Jackery manual). The UK product page says "4000 Cycles" without the basis (Jackery UK).
  • Anker SOLIX C1000: "up to 3,000 charge cycles", with no capacity basis on the UK product page (Anker SOLIX UK).

A figure "to 70%" and one "to 80%" aren't directly comparable, and a figure with no basis can't be compared at all. Our spec table shows each figure with the basis the maker gives.

What it means in practice: if you use a full cycle once a week, that's 52 cycles a year (our arithmetic). At 3,500 cycles, that's over 60 years of weekly use. A cycle figure covers the battery only, and says nothing about how long the inverter, ports or screen last. Cycle life matters most if you cycle the battery daily, for example from solar. For a few camping weekends a year, capacity, output and weight usually matter more.

Usable capacity

Not all of the rated capacity is used. For sizing we assume 90% usable for LiFePO4 and 80% for NMC, with the sources and reasoning on our methodology page. The sizing calculator applies these for you.

Cold weather and charging

Makers state separate temperature ranges for charging and for use:

  • BLUETTI AC180: charging 0–40 °C, and BLUETTI advises avoiding recharging below freezing (BLUETTI UK).
  • Jackery Explorer 1000 v2: charging 0–45 °C and discharging -10–45 °C (Jackery manual).

Check the manual for your model: these ranges come from each maker, not from the chemistry alone. For why a cold battery runs out sooner, see why your power station runs out faster than expected.

How to check what you're buying

  • Look for the chemistry on the spec sheet: LiFePO4, LFP or NMC (some makers write NCM).
  • Look for a cycle figure with its basis, such as "to 80%". If the product page doesn't give one, check the manual.
  • Check the weight against how you'll carry it, and the charging temperature range if it will live in a van or shed.
  • Follow the maker's storage and charging advice. See our safety guide.

FAQs

Is LiFePO4 better than NMC?

We don't rank them. Anker's UK explainer says LFP has better thermal stability and NMC stores more energy for its weight. Which matters depends on how you'll use and carry the power station.

What does "3,500 cycles to 80%" mean?

BLUETTI states that after 3,500 or more full cycles, the AC180's battery should still hold 80% of its original capacity. Other makers use other bases, such as 70%.

Why is my power station heavier than an older one of the same size?

It may use LiFePO4, which Anker says can be heavier or bulkier for the same capacity than NMC. Compare stated weights on the spec table.

Can I charge a LiFePO4 power station below freezing?

Check your manual. BLUETTI and Jackery both state a lowest charging temperature of 0 °C for the models above.

Related: Spec sheet checklist · Spec table · Methodology · Power station safety

Sources