Monolith pack

Zero ZF17.3

One bonded pack, not user-swappable. Largest Zero pack; native on DSR/X, unlockable on the FST street bikes. Zero published 15.2 kWh nominal in the MY2023 manuals and 15.1 from MY2024 on — the figure here is the current one.

Last updated: July 3, 2026

15.1 kWh usable · 17.3 kWh maxscaled to the 17.3 kWh flagship

Max capacity

17.3 kWh

Usable (nominal)

15.1 kWh

Form factor

Monolith pack

Weight

≈ 63.5 kg (140 lb)

Model years

2022-2026

Cells

28S · ~102 V nominal

Pack weight is an approximate figure — sourced from Same 17.3 kWh monolith hardware as ZF15.6 (15.6 is a software-limited unlock) — inferred equal. Zero doesn't publish most pack weights, so these are cross-checked against reviews and curb-weight deltas. Energy density is shown only where the weight is independently sourced, and is max capacity ÷ pack weight.