Blue Sea Systems Add-A-Battery Kit -120A
Blue Sea Systems Add-A-Battery Kit -120A
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Blue Sea Systems

Blue Sea Systems Add-A-Battery Kit -120A

|4 ratings

Key item features

  • Switching Simplified: Simplifies switching with a dual circuit plus battery switch, isolating engine and house circuits.
  • Emergency Starting: Combines batteries for emergency starting, ensuring you are never stranded with a dead battery.
  • High Conductivity: Tin-plated copper studs provide maximum conductivity and corrosion resistance.
  • Automatic Charging: 12/24 Volt DC 120 Amp Automatic Charging Relay combines batteries during charging and isolates them during engine cranking.
  • Efficient Charging: Shares the charge between two batteries more efficiently than a battery isolator.
  • Waterproof Design: The battery link is IP-67 waterproof and includes battery temperature compensation and start isolation.
  • External Indicator: Comes with an external indicator remote to monitor charge status at or away from the dock.
  • Enhanced Safety: Integrates switching and AC/DC charging to make boating simpler and safer.
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Current price is Now $168.18
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was $187.99
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4.6571428571428575 stars out of 5, based on 1190 seller reviews(4.7)
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4.8 out of 5 stars
stars4 ratings2 reviews
How item rating is calculated
  1. 5 stars75% (3)
  2. 4 stars25% (1)
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Showing 1-2 of 2 reviews

Sep 10, 2016
ChuckW
5 out of 5 stars review

Verified Purchase

Blue Sea rules

haven't had a chance to install it yet, but the reviews say this system is a great way to ensure never being stranded with out having star power for your boat, after running radios and other on board accessories. Deliver was quick and easy. Chuck W.

Helpful?6G41K5ZLOLM229845957
Sep 3, 2025
anonymous
4 out of 5 stars review

Verified Purchase

Quick shipping. Looking to get it on my boat.

Incentivized Review
Helpful?6G41K5ZLOLM229845957