Description
Why upgrade from NA-20: The NA-30 fits the same published external case dimensions as the NA-20, with 30Ah instead of 20Ah. The supplier lists a much higher 11.8-lb weight versus NA-20's 6.4 lb, and the charge/discharge specifications differ; confirm the actual hold-down, terminals and charging system.
Compare Vault model specifications · Ask SMS about fit or availability
30Ah capacity in the NA-20-size case. The new Vault Power Element 11 NA-30 uses a 12V sodium-ion design in the same stated external dimensions as the NA-20, providing 50% more rated amp-hour capacity in the same footprint. Vault Power positions it for factory Harley-Davidson battery locations as well as suitable vehicle and powersports electrical upgrades.
Key specifications
- Model: NA-30 • Element 11 • sodium-ion
- Nominal voltage: 12V
- Capacity: 30Ah • 360Wh nominal energy
- Published manufacturer system ratings: up to 7,500W vehicles / 5,000W motorcycles (application guidance)
- Charge rating on supplied product imagery: 120A
- Discharge rating on supplied product imagery: 180A
- Maximum voltage marking: 16V
- Dimensions (L × W × H): 6.5 × 4.94 × 6.88 in
- Weight: 11.8 lb, per the corrected October 27, 2026 supplier sheet
- Manufacturer-promoted operating temperature: down to −40°F; verify charging-temperature limits separately
Same outer size, different electrical requirements
The NA-30 shares the NA-20's published external dimensions, but the added capacity and different electrical ratings mean they must not be treated as interchangeable for charging-system design. Exact Harley model, hold-down hardware, cable routing, terminal clearance and system voltage must be confirmed. An alternator or stator still has to replace energy used by the audio system; published wattage guidance is not continuous-power certification.
Available through SMS Car Audio, Marrero, Louisiana. We can size your electrical support around actual current demand rather than amplifier labels alone.
Where this fits in the build
Vehicle-specific and open-air equipment should be chosen around fitment, environment, placement and the output needed where the system will actually be used.