New Product Line — Q3 2026

Humphree All-Speed Fins • Gyroscopic Stabilizers • 12VDC • 24VDC

Salty Marine
Gyro & Fin Power Kits

The first sodium-ion battery kits purpose-engineered for Humphree interceptor fin systems and marine gyro stabilizers. 12VDC and 24VDC configurations. Run your stabilization systems at anchor — no generator required.

See All Kits Pre-Order Free

System Compatibility

Humphree CP512 / CP712 All-Speed Fins Humphree Interceptor Series (Single & Dual) Seakeeper 1 / 2 / 3 (DC models) Quick MC2 X 15 / MC2 X 25 (DC) Dometic / Smart Gyro / Kenettic (DC units) Any Brand — Brand-Neutral Engineering
Product Lines

Choose Your System

Two power architectures. Four kit configurations. Every system is matched to your stabilizer's actual power draw — not a generic estimate.

Humphree All-Speed Interceptor Fin Systems — 12VDC & 24VDC
SALT FIN-12™

Fin Kit 12VDC

For 12V Humphree interceptor systems

12V
$1,899

Pre-order price / ships Q4 2026

5 kWh Sodium-Ion Pack
Sized for Humphree CP512/single-fin draw profile. Handles peak surge on fin deployment.
12V 400Ah LFP-Class Output
Drop-in to existing 12V charging bus. Compatible with standard marine alternators and shore power chargers.
Marine-Grade BMS + Housing
IP67 rated. Vibration-damped mount. Salt-spray resistant terminals. No thermal runaway — sodium-ion chemistry.
8–12 Hour Fin Runtime at Anchor
At typical Humphree standby draw (15–25A). Active deployment power: fully sustained.
Bolt-On Install — No Hull Modification
Designed for engine room or bilge installation. Modular connections. Can be DIY or pro-installed.

Fits These Humphree Systems

CP512 Single Fin All-Speed Interceptors (12V) Vessels 30'–55'
Pre-Order SALT FIN-12™ — $1,899
Most Requested — CP712 & Dual-Fin
SALT FIN-24™

Fin Kit 24VDC

For 24V Humphree interceptor systems

24V
$2,899

Pre-order price / ships Q4 2026

8 kWh Sodium-Ion Pack
Sized for Humphree CP712 dual-fin or heavy single-fin draw. Handles peak surge on both fins simultaneously.
24V 333Ah LFP-Class Output
Native 24V bus — no DC-DC conversion loss. Direct feed to Humphree controller. Maximum efficiency.
Marine-Grade BMS + IP67 Housing
Dual-cell string management. Individual cell monitoring. Auto-balance. Rated for 3,000+ cycles.
6–10 Hour Dual-Fin Runtime at Anchor
At typical CP712 dual draw (30–50A total). Full-speed active stabilization for all underway passages included.
CAN Bus / NMEA 2000 Monitoring Ready
Exposes SOC and runtime data to Humphree control unit and chartplotter displays via NMEA 2000 (optional add-on).

Fits These Humphree Systems

CP712 Dual Fin All-Speed Interceptors (24V) Vessels 40'–80'
Pre-Order SALT FIN-24™ — $2,899

Fin Kit Specification Comparison

Specification SALT FIN-12™ SALT FIN-24™
System Voltage12V DC24V DC
Pack Capacity5 kWh8 kWh
Continuous Current100A cont / 200A peak100A cont / 200A peak
Battery ChemistrySodium-Ion (Na+)Sodium-Ion (Na+)
Cycle Life3,000+ cycles3,000+ cycles
Thermal Runaway RiskNone — Non-FlammableNone — Non-Flammable
Anchor Runtime (Fin Only)8–12 hours6–10 hours
IP RatingIP67IP67
Operating Temp-20°C to 60°C-20°C to 60°C
Humphree CompatibilityCP512, Single FinCP712, Dual Fin
Target Vessel Length30'–55'40'–80'
Pre-Order Price$1,899$2,899
Marine Gyroscopic Stabilizer Battery Packs — High-Surge DC
SALT START™

Starter Gyro Kit

$3,499

Ships Q4 2026

  • 10 kWh sodium-ion pack
  • For Seakeeper 1-3 / Quick MC2 X 15 / DG3
  • 4–5 hr anchor runtime
  • Marine BMS + IP67
  • Bolt-on install kit
Pre-Order — $3,499
Most Popular
SALT SURGE™

Standard Gyro Kit

$5,999

Ships Q4 2026

  • 20 kWh sodium-ion pack
  • For Quick MC2 X 25 / Seakeeper 3 / twin-DC gyro
  • 6–8 hr anchor runtime
  • Shore power + solar input
  • Remote SOC monitoring
Pre-Order — $5,999
SALT FLEET™

Commercial Gyro Kit

Custom

Engineered per vessel

  • 30–60 kWh configurable
  • Twin-DC gyro / AC-to-DC inverter systems
  • Full installation included
  • Fleet pricing available
  • Commercial warranty
Request Quote
Unified Fin + Gyro Power Banks — One System, Two Stabilizers
SALT COMBO-12™

Fin + Gyro Combo 12V

$4,999

12V unified bank — powers both Humphree fins and gyro from single pack

  • 15 kWh unified sodium-ion bank
  • Dual-output BMS (isolated fin + gyro circuits)
  • Humphree CP512 + Seakeeper 1-3 / Quick MC2 X 15
  • Load priority logic — gyro surge protected
  • 4–6 hr dual-system anchor runtime
Pre-Order COMBO-12™ — $4,999
Best Value — Full System
SALT COMBO-24™

Fin + Gyro Combo 24V

$7,499

24V unified bank — powers Humphree CP712 dual fins and Quick MC2 X 25-class DC gyro from single engineered system

  • 25 kWh unified sodium-ion bank
  • Triple-output BMS (fin A, fin B, gyro)
  • Humphree CP712 + Quick MC2 X 25 / Seakeeper 3
  • Shore power + solar + alternator charging
  • Remote monitoring via mobile + NMEA 2000
  • 5–8 hr full dual-system anchor runtime
Pre-Order COMBO-24™ — $7,499

Combo systems share a unified battery bank with isolated BMS output circuits for each stabilizer load. A load-priority algorithm ensures gyro surge draw never starves the fin system and vice versa. Engineering review included in every combo order.

How the Kits Work

Step 1

Vessel Power Audit

We verify your Humphree fin model, voltage, and gyro power draw. Every install is scoped to actual specs — not a generic calculator.

Step 2

Kit Ships to You

Battery pack, BMS, mounting hardware, wiring harness, and installation guide. Sized and labeled for your specific system configuration.

Step 3

Install & Commission

DIY-installable with provided documentation, or we deploy a Fort Lauderdale tech to your marina. Remote commissioning support included.

Step 4

Run Generator-Free

Drop anchor. Kill the generator. Your stabilization systems run from the Salty Marine pack. Quiet anchorage. Zero fuel burn.

Limited Pre-Order — Ships Q4 2026

Reserve Your Kit

No payment now. We'll confirm specs and pricing before charging anything.

No payment required. Final specs confirmed before any charge. Ships Q4 2026.
Questions? jake@helmlegal.net • (954) 873-8546