Bluewater Auto Charging Relay 12V, 140 AMP [9800-7101-00]
Bluewater
- Bluewater:
- Authorized Reseller
- Product Condition:
- New
- Warranty:
- Full Manufacturer Warranty
- SKU:
- 9800-7101-00-BLU
- MPN:
- 9800-7101-00
- UPC:
- 810196331235
Delivery:
Estimated delivery
if you place order before 3pm EST
Usually ships the same business day.
Returns:
30 day returns. | See Details
Frequently bought together:
Auto Charging Relay 12V, 140 AMP
The automatic charging relay (ACR) automatically manages battery charging to ensure maximum efficiency and protect your batteries.
Features:
- Automatic battery management – connects batteries during charging and isolates them when the voltage drops
- Start Isolation (SI) – protects sensitive electronics during engine cranking by temporarily disconnecting house loads (indicated by a slow-flashing yellow LED)
- High-output support – compatible with alternators up to 120 A
- Dual-color LEDs – provide real-time battery status: Fault, Charging, Discharging, Combine, SI, and Override modes
- Under Voltage Lockout – prevents the relay from closing when battery voltage is too low (9.5V for 12V systems, 19V for 24V systems)
- Durable design – IP67 waterproof, ignition protected, safe for marine and RV applications
Specifications:
- Continuous Rating: 120 Amps
- Intermittent Rating: 140 Amps
- Max Voltage: 48VDC
- Cable Size: 4/0 AWG
Applications:
- Boats – dual battery systems (starter + house)
- Sailboats – navigation and lighting batteries
- Fishing boats – trolling motor and accessory battery protection
Specifications:
- Continuous Amperage: 120
- Box Dimensions: 3"H x 6"W x 9"L WT: 0.85 lbs
- UPC: 810196331235
Quick Guide (pdf)
- MPN:9800-7101-00
Product Features

