Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Bluewater Auto Charging Relay 12V - 140 AMPAuto 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
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 120A
- 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
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 1989 reviews
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Product Reviews
★★★★★ 5
Handy interior light.
Number of Items: 1
It's a nice little light, those great job at lighting up the inside of the UTV I like the fact that it is rechargeable and I can recharge it from the UTV and it has a spot light is nice if u need to get out and look at some things.
The mount is nice it can pretty much mount wherever you want to put it. Battery life seems to be pretty good, It's got wet and it still working fine.
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Reviewed in the United States on March 16, 2026
★★★★★ 5
Bright!
Number of Items: 1
Small but powerful led light. Good deal for the money
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
★★★★★ 5
I like it !
Number of Items: 1
Easy install , aimable ,removable if needed and rechargeable . What else would you need ? I recommend .
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Reviewed in the United States on April 25, 2026
★★★★★ 5
Not satisfied
Number of Items: 1
Very disappointed, not sure if I just received the one bad one or if all are made cheaply. Did not even last a day and the orange cap that protects the usb charging port broke. Messaged seller on it being defective so we will see what comes of that.
Update: seller responded and sending another one. The current one, while the orange end seemed defective the light itself is super bright. My son has a much larger one but I prefer this compact size and the brightness of it
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Reviewed in the United States on September 12, 2025
★★★★★ 3
Lights for Atv.
Number of Items: 1
It’s very flimsy but hasn’t fallen off the atv yet. We’ll see how it lights up once I take it at night. Straps are too short.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 15, 2026
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