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Marinco Guest 12v 10 Amp Portable Marine Charger GU2612A

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This is a portable waterproof charger with carrying handle. Nice for charging dockside.

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Product InformationStore Part Number: GU2612A


Guest 12 Volt 10 Amp Portable Waterproof Charger
Guest Charge Pro 10 amp 3-stage fully automatic electronic single output charger designed to recharge Wet Cell, AGM, and Gel batteries. WATERPROOF, Shock & Vibration Resistant, Lightweight (LESS THAN 5 POUNDS), compact charger design, charges and maintains batteries at proper storage voltage without the damaging effects caused by trickled chargers.

Recommended uses: Bulk charge of flooded, AGM, and gel batteries under 125 amp hours and charge/maintenance of batteries partially discharged up to 250 amp hours. Some popular applications are auto, marine, RV, generators, industrial, etc. #GU2612A


  • 3-Stage electronic design
  • LED Charge Status
  • Completely Automatic: plug it in and forget it
  • Charge and Long Term Battery Maintenance: will never overcharge batteries
  • Waterproof and Silent
  • Vibration Proof and Shockproof
  • Lightweight under 5 pounds
  • Input AC Cord 6 feet long
  • Alligator clamp output with 4 foot cord
  • Waterproof & Easy Install
  • Optimal 3 Step Charging
  • Built-in Mode Indicators
  • Spark Free Hook Up
  • Reverse Polarity Protection
  • Over Voltage Protected
  • Short Circuit Protection
  • Overload Protection
  • Thermal Protection
  • 2 year Warranty


* Flat Rate shipping is for the lower 48 states only.

Tech Specs

  • Dimensions (LxWxH): 7.5 x 5 x 2.5 in
  • Weight: 4.5 lb
  • Shipping Weight: 6 lb
  • Output Voltage Charging: 14+ V
  • AC Input Amps: 2.5 A
  • AC Input Volts: 115 V
  • Manufacturer: Guest/Marinco
  • AC Input Volts Freq.: 50/60 Hz
  • AC Input Volts Range: 100-130 VAC
  • Float Voltage: 13.3 V
  • Enclosure Size: Thermal Plastic
  • Output Banks: 1
  • Regulatory Approval: FCC Class A
  • Manufacturer Part #: GU2612A

Reviews and Ratings

5.00 Average
5 Stars 3
4 Stars 0
3 Stars 0
2 Stars 0
1 Stars 0
Rated 5.00/5 Stars from 3 customer reviews.

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Quest 12v 10amp marine Charger 2612A
Pros: I have had this charger for 11 years. I have used it 50 times. It has never let me down. Used it on inboard, outboard and auto. Easy to use, I let my daughter use it.
Cons: It works all the Time!
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Written by Anonymous on Feb 27, 2014. Ownership: Use regularly. Knowledge Level: Genius is my way of life — (78 of 154 customers found this review helpful
A Great and Durable Charger
Pros: This great and durable charger is indestructable; I have had mine for over 10 years, and it is unmarked in any way and as good as the day i bought it. It will charge certain specialty marine gel batteries that my standard charger cannot charge, and I can use it anywhere without fear of damaging it in any way.
Cons: I have not experienced any downsides or poor performance from this charger.
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Written by Anonymous on Mar 07, 2013. Ownership: When it goes, I'm giving it a eulogy. Knowledge Level: AC/DC is more than a band — (80 of 155 customers found this review helpful
Get it and forget it
Pros: I have owned this generator for well more than 10 years, and it looks and behaves like the day I bought it. I am tough on my tools and equipment and I expect a lot out of them, but this trooper is tougher than I am, and just will not quit. I bought it because neither of my other 2chargers could charge my marine gel batteries! but this one sure does. It is a great, dependable tool to have.
Cons: I have nothing negative that I can say about this charger and what I expect of it.
Is this review helpful?
Written by Frankie on Oct 20, 2013. Ownership: I've thought about naming it.... Knowledge Level: Electricity doesn't scare me.. usually — (79 of 154 customers found this review helpful

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Manuals & Tutorials

Chargers Tutorial

Why does it read 13 volts?

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