LMT battery field reference

Full field reference for batteryCategory: "LMT_BATTERY" responses from GET /api/dpp/{slug}. LMT (Light Means of Transport) batteries cover e-bikes, e-scooters, e-mopeds, and similar micro-mobility vehicles.

For fields shared across all categories, see DPP overview. This page documents what is specific to, or different for, LMT batteries.

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Nullability by field

Field path	Type	Nullable for LMT?	Notes
carbonFootprint	object	Never null	Required for LMT batteries
carbonFootprint.totalKgCO2ePerKwh	number	Never null
carbonFootprint.lifecycle.*	number	Never null	All five lifecycle stages required
carbonFootprint.calculationMethodology	string	Never null
carbonFootprint.verifiedBy	string | null	Nullable
carbonFootprint.verifiedAt	string | null	Nullable
carbonFootprint.declarationRef	string | null	Nullable
recycledContent.cobaltPercent	number	Never null
recycledContent.lithiumPercent	number	Never null
recycledContent.nickelPercent	number	Never null
recycledContent.leadPercent	number	Never null	Typically 0 for LMT batteries
performance.nominalCapacityKwh	number	Never null	LMT products are typically 0.25–2 kWh
performance.ratedVoltageV	number	Never null
performance.cycleLifeAtEightyPercent	number	Never null
performance.roundTripEfficiencyPercent	number | null	Nullable
performance.operatingTempMinC	number	Never null
performance.operatingTempMaxC	number	Never null
performance.initialSelfDischargeRatePercent	number | null	Nullable
hazardousSubstances	array	Never null, may be empty	Substances above 0.1% by weight
supplyChain.dueDiligencePolicyUrl	string | null	Nullable
supplyChain.responsibleSourcingCertification	string | null	Nullable
compliance.euBatteryRegulation	boolean	Never null
compliance.reachCompliant	boolean	Never null
compliance.rohsCompliant	boolean	Never null
compliance.certifications	string[]	Never null, may be empty
compliance.declarationOfConformityRef	string | null	Nullable

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Key differences from EV batteries

LMT batteries have requirements that are broadly similar to EV batteries, with two practical differences:

1. Capacity scale — LMT products typically fall in the 0.25–2 kWh range. The nominalCapacityKwh field will reflect these smaller values. Validate ranges in your integration if displaying capacity in Wh (multiply by 1000) rather than kWh.

2. roundTripEfficiencyPercent — nullable for LMT batteries, unlike EV batteries where it is always present. Guard against null before displaying:

if (dpp.batteryCategory === 'LMT_BATTERY') {
  const eff = dpp.performance.roundTripEfficiencyPercent;
  console.log(eff !== null ? `${eff}%` : 'Not declared');
}

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Regulatory thresholds

Metric	Threshold	Applies from
Minimum recycled cobalt content	16%	1 Jan 2031
Minimum recycled cobalt content	26%	1 Jan 2036
Minimum recycled lithium content	6%	1 Jan 2031
Minimum recycled lithium content	12%	1 Jan 2036
Minimum recycled nickel content	6%	1 Jan 2031
Minimum recycled nickel content	15%	1 Jan 2036
Carbon footprint declaration mandatory	—	18 Aug 2025

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Handling carbon footprint (always present)

const dpp = await fetchDpp('my-ebike-battery-slug');

if (dpp.batteryCategory !== 'LMT_BATTERY') {
  throw new Error('Expected LMT_BATTERY');
}

// carbonFootprint is never null for LMT_BATTERY
const cf = dpp.carbonFootprint!;
console.log(`${cf.totalKgCO2ePerKwh} kgCO₂e/kWh`);

// Capacity is in kWh — convert to Wh for typical micro-mobility display
const capacityWh = dpp.performance.nominalCapacityKwh * 1000;
console.log(`Capacity: ${capacityWh} Wh`);

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Restricted fields (PoLI access only)

Supply chain detail beyond the public dueDiligencePolicyUrl and responsibleSourcingCertification fields is restricted. See PoLI endpoints.