The Zero Battery Catalog
Every Z-Force battery pack Zero Motorcycles has shipped — maximum and nominal capacity, form factor, weight and which models mount it. Filter, search, and cross-reference the full compatibility matrix.
The “ZF” number is the max
ZF6.5 = 6.5 kWh maximum. Zero’s published “nominal” is the usable figure, ≈ 0.88× the max (ZF6.5 → 5.7 kWh usable).
Modular vs monolith
FX/FXS run 1–2 hot-swappable bricks; the FXE’s 7.2 kWh pack is integrated. Street S/SR/DS/DSR and the Gen3 SR/F, SR/S, DSR/X use one bonded pack. A badge sold both ways (ZF6.5, ZF7.2) is listed twice, once per construction — your bike dumps one BMS log per module, so two BMS files mean two modules.
Same series count everywhere
Every pack here is 28 cells in series (28S, ~102 V nominal, ~117 V full). Zero does not publish the cathode chemistry or the cell supplier — the owner manuals say only “Z-Force Li-Ion”, so the Farasis NMC attribution quoted elsewhere is the community’s, not Zero’s. The Power Tank is purely additive and never renames the pack.
A decade of packs
When each main pack was on sale and how capacity climbed from 2.8 kWh to 17.3 kWh (modular / monolith).
All packs
Compatibility matrix
Which main pack ships on which model. Hover a column to trace a model down the list.
| Pack | FX | FXS | FXE | XU | MX | S | DS | SR | DSR | S/F | SR/F | SR/S | DSR/X |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ZF2.82.8 kWh | · | · | · | · | · | · | · | · | · | · | |||
| ZF3.33.3 kWh | · | · | · | · | · | · | · | · | · | · | · | ||
| ZF3.63.6 kWh | · | · | · | · | · | · | · | · | · | · | · | · | |
| ZF5.75.7 kWh | · | · | · | · | · | · | · | · | · | · | |||
| ZF66 kWh | · | · | · | · | · | · | · | · | · | · | · | ||
| ZF6.56.5 kWh | · | · | · | · | · | · | · | · | · | · | · | ||
| ZF6.5 (integrated)6.5 kWh | · | · | · | · | · | · | · | · | · | · | · | ||
| ZF7.27.2 kWh | · | · | · | · | · | · | · | · | · | · | |||
| ZF7.2 (integrated)7.2 kWh | · | · | · | · | · | · | · | · | · | · | · | · | |
| ZF8.58.5 kWh | · | · | · | · | · | · | · | · | · | · | · | ||
| ZF99 kWh | · | · | · | · | · | · | · | · | · | · | · | ||
| ZF9.49.4 kWh | · | · | · | · | · | · | · | · | · | · | · | ||
| ZF9.89.8 kWh | · | · | · | · | · | · | · | · | · | · | · | ||
| ZF11.411.4 kWh | · | · | · | · | · | · | · | · | · | · | |||
| ZF12.512.5 kWh | · | · | · | · | · | · | · | · | · | · | |||
| ZF13.013 kWh | · | · | · | · | · | · | · | · | · | ||||
| ZF14.414.4 kWh | · | · | · | · | · | · | · | ||||||
| ZF15.615.6 kWh | · | · | · | · | · | · | · | ||||||
| ZF17.317.3 kWh | · | · | · | · | · |
Frequently asked
What does the ZF number mean on a Zero battery?
The ZF number is the pack's MAXIMUM capacity in kWh (e.g. ZF6.5 = 6.5 kWh max). Zero's separately published "nominal" figure is the usable capacity, roughly 0.88× the max — so a ZF6.5 pack is about 5.7 kWh usable.
What battery chemistry do Zero Motorcycles use?
Zero does not publish it. Every owner manual we hold calls the pack a "Z-Force Li-Ion Intelligent Power Pack" and names neither the cathode chemistry nor the cell supplier, so the "Farasis NMC" attribution repeated across enthusiast sites has no primary source. What is documented is the construction: the packs in this catalog are wired 28 cells in series (28S), about 102 V nominal and roughly 117 V fully charged. The 2026 light line (LS1, XE, XB) uses a different 74 V architecture.
Which Zero models have modular vs monolithic batteries?
The FX family (FX, FXS, FXE) uses removable modular bricks — one or two per bike. The street bikes (S, DS, SR, DSR) and the Gen3 SR/F, SR/S and DSR/X use a single bonded monolith pack that is not user-swappable.
What is the largest Zero battery pack?
The ZF17.3 (17.3 kWh maximum, ~15.1 kWh usable) is the largest, native to the DSR/X and unlockable on the SR/F and SR/S. The smallest is the ZF2.8 modular brick used on the early FX/XU/MX.
What is a Zero Power Tank?
The Power Tank is an additive accessory pack for monolith street bikes (+2.8 kWh before 2018, +3.6 kWh after). It adds capacity on top of the main pack and never renames it.
Own a Zero? Track its real battery health.
Upload your logs to see capacity retention, cell balance and charge curves — and set your exact pack from this catalog.
Sources:
Capacities cross-checked across ≥3 independent references (2026-07). Zero’s JS-rendered spec pages aren’t bot-fetchable, so first-party numbers come via reproductions — corrections welcome.