All Hardware
v1.0 — Field Testing on Aliikai
Sailor's Hitch power
Smart charging for any alternator. Any voltage. Any vessel.
The Sailor's Hitch power kit replaces the internal regulator in any commercially available large alternator — marine, truck, or automotive. Install our ESP32-based kit and get BMS-aware, temperature-derated, current-limited smart charging for your lithium bank. Works on 12V and 24V systems. No proprietary lock-in.
Features
- Universal fit — any large alternator, internal regulator removed
- 12V and 24V system support
- Smart PWM field drive, soft-start ramp at 25kHz
- Configurable current limit and voltage targets
- BMS integration via RS485 Modbus RTU (JK BMS + compatible)
- Temperature derating — linear 70–90°C, shutdown at 95°C
- Dual alternator ESP-NOW wireless sync (port + starboard)
- Real-time web dashboard: voltages, current, temperature
- OTA firmware updates (ArduinoOTA + ElegantOTA)
- Signal K path integration