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Two hundred-amp-hour packs, measured differently

ECO-WORTHY 12 V 100 Ah LiFePO4 with Bluetooth and low-temperature cut-off vs Exakt EXL100, 12.8 V 100 Ah LiFePO4

Fifteen thousand cycles, or eight and a half thousand with the depth stated?

By

These two are the same battery on paper: 100 Ah, LiFePO4, and physically within five millimetres of one another. Where they separate is in how their cycle counts are written, and in what happens when it gets cold. One publishes a very large number with nothing attached to it. The other publishes a smaller number with the depth of discharge it was measured at. Those two figures are not comparable until you know that.

ECO-WORTHY 100 Ah LiFePO4 battery with Bluetooth monitoring

ECO-WORTHY 12 V 100 Ah LiFePO4 with Bluetooth and low-temperature cut-off

Wins 5 of 7

Check price

≈ €200

EXAKT 100 Ah LiFePO4 battery with M8 threaded terminals

Exakt EXL100, 12.8 V 100 Ah LiFePO4

Wins 2 of 7

Check price

≈ €167

Line by line

Compared on 12 V 100 Ah LiFePO4 with Bluetooth and low-temperature cut-off EXL100, 12.8 V 100 Ah LiFePO4
Nominal capacity 100 Ah at 12 V, first bullet; 10.24 kWh maximum in a 4P2S or 2P4S arrangement, fifth bullet 100 Ah at 12.8 V, first bullet
Continuous and peak discharge current 100 A maximum continuous charge and discharge current, fifth bullet; no peak figure is published Not published as amps — the first and third bullets give a charge and discharge capability of up to 1C, which on a 100 Ah pack is 100 A
BMS protections 100 A BMS with over-voltage, under-voltage, over-current, over-heating, short-circuit and low-temperature cut-off, second bullet Over-heating and short-circuit protection with cell balancing and deep-discharge protection, fourth bullet; no current or voltage thresholds are given
Low-temperature behaviour Charging stops at −7 °C and resumes at ≥0 °C; discharge stops below −20 °C, second bullet — the most complete cold specification in this family Nowhere in the listing — no charging temperature threshold is published
Cycle life Up to 15000 cycles with a stated 10-year life, fourth bullet; neither a depth of discharge nor a remaining capacity accompanies the count Up to 8500 cycles at 30 % depth of discharge, first bullet — the depth is stated, the remaining capacity is not
Terminals Nowhere in the listing — no terminal type is named M8 internal thread with terminal bolts, positive on the left, first bullet
Dimensions 260 × 168 × 214 mm, 10.5 kg, third bullet 260 × 168 × 209 mm, first bullet

A tick means one listing published something the other did not, or published a better figure. It does not mean the product is better, and the column is not a score out of anything: a maker who says less loses lines here without losing a comparison. The two verdicts below are where the page is settled.

Which one, for whom

Buy the ECO-WORTHY 12 V 100 Ah LiFePO4 with Bluetooth and low-temperature cut-off

The fuller specification by some distance: a BMS with six named protections, a cold-charging threshold stated at both ends, a weight, and the series-parallel arrangements it supports. Its cycle figure is the weak point — fifteen thousand cycles with no depth of discharge and no end-of-life capacity is a number rather than a measurement.

Buy the Exakt EXL100, 12.8 V 100 Ah LiFePO4

Loses most lines on what it does not publish, and wins the two that matter to an installer. Eight and a half thousand cycles at 30 % depth of discharge is a real specification, because it says what was being counted. And M8 terminals with the polarity stated is the difference between ordering the right lugs and discovering it on installation day.

Questions this pairing raises

Which cycle figure should I believe?

The one with a condition attached. Cycles at 30 % depth of discharge are shallow cycles, so the count is naturally high; a figure with no depth at all cannot be placed against it. Neither listing gives the remaining capacity at end of life, which is the third part of a complete claim.

Why does cold charging matter so much?

Because charging a lithium cell below freezing plates lithium metal onto the anode, permanently and irreversibly. A battery with a low-temperature cut-off refuses instead. One of these publishes the exact thresholds; the other does not mention the subject.

Is 12 V or 12.8 V the real voltage?

Both, differently stated. A four-cell LiFePO4 pack sits at about 12.8 V nominal and is sold as a 12 V battery. One listing gives the nominal system voltage, the other the pack voltage. They describe the same thing.

The full reviews

  • LiFePO4 batteries

    ECO-WORTHY 12 V 100 Ah LiFePO4 with Bluetooth and low-temperature cut-off

    100 Ah at 12 V · 100 A BMS, 100 A continuous charge and discharge · charge stops at −7 °C, resumes at ≥0 °C, discharge stops below −20 °C · 15000 cycles · Bluetooth · 10.5 kg

    A 12 V 100 Ah LiFePO4 battery with a 100 A BMS, Bluetooth monitoring, and published low-temperature thresholds for both charging and discharging.

    Best for: A van or boat that will see freezing mornings, where the charging threshold is the specification that matters.

    ≈ €200

    Check price on Amazon Read the review
  • LiFePO4 batteries

    Exakt EXL100, 12.8 V 100 Ah LiFePO4

    100 Ah at 12.8 V · up to 1C charge and discharge · BMS with balancing · 8500 cycles at 30 % DoD · M8 internal thread · 260 × 168 × 209 mm

    A 12.8 V 100 Ah LiFePO4 battery with an integrated BMS, quoted at up to 1C charge and discharge, with dimensions and terminal type published in full.

    Best for: Replacing a lead-acid leisure battery in an existing tray, where the physical fit has to be checked first.

    ≈ €167

    Check price on Amazon Read the review

A price quoted in the text of a PowerVerdict page dates from the day that page was written; the live figure beside each product is fetched while you read and replaces it.