view large photo

Swipe Photo to View More

Marinco Guest 12v 12 Amp 2 Bank On-Board Marine Charger GU16102

$142.00 - No Tax
This item qualities for
$7.50 Flat Rate Shipping *
Out of Stock

This Qualifies for FLAT RATE Shipping of $7.50 per order*
Each output is user settable for GEL, AGM, or Wet Cell batteries!

Share this item with your friends

Product InformationStore Part Number: GU16102


The Guest model GU16102 is a microprocessor controlled, 3-stage electronic switching battery charger. Each output produces 12 volts DC at 6 amps per, while maintaining much less AC draw than other comparable chargers. Unlike an old style trickle charger, this unit will not boil off the electrolyte on a properly functioning battery. This unit features a push button interface that allows the user to configure each output to individual battery types. This ensures that each battery gets the individual care that it needs to live a long life. The 3 color LEDs on the face of the charger will let you know the unit is recharging and maintaining your batteries. This charger is ideal in applications where more than one type of battery is used in a single application, such as a boat, electric vehicle, etc.


  • 6 Amps per Bank
  • 2 isolated outputs
  • Selectable AGM, GEL, or Wet Cell (each bank)
  • Water resistant
  • Onboard Mounting
  • Tricolor LEDs for easy monitoring
  • Fully automatic, will not overcharge.
  • Float mode
  • Output cable length 4' each
  • Input cable length 6'
  • Waterproof & Easy Install
  • Optimal 3 Step Charging
  • 2 Fully Isolated Outputs
  • Built-in Mode Indicators
  • Spark Free Hook Up
  • Demand Sensing
  • Thermal Protection
  • 3 year Warranty


This is the answer to multiple battery types in one application, such as a boat with AGM starting batteries and Gel Trolling batteries. One charger to do it all! * Flat Rate shipping is for the lower 48 states only.

Tech Specs

  • Dimensions (LxWxH): 3.0 x 7.1 x 6.6 in
  • Weight: 4.5 lb
  • Shipping Weight: 6 lb
  • DC Output Amps: 6/6 A
  • AC Input Volts Freq.: 50/60 Hz
  • AC Input Volts Range: 95-135 VAC
  • Manufacturer: Guest/Marinco
  • Charge Voltage: 14.1-14.4 selectable
  • Float Voltage: 13.4-13.8 selectable
  • Power Requirements: 3.5 Amps max
  • Charge Reset: Battery Voltage Threshold: 16 V auto shutdown
  • Storage Temperature: -40° to +185° C
  • Output Banks: 2
  • Manufacturer Part #: GU16102
  • Made In: China

Customers who bought this product also bought:

Reviews and Ratings

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

Do you own the GU16102? Please, tell us what you think about it. It helps us provide you with better products. Please note that it may take up to 72 hours for your review to appear.

Guest GU16102 charger
Pros: I like all the information it gives you in the form of LEDs. I just used it once. So far so good.
Cons: A don't have anything negative to say.
Is this review helpful?
Written by Another Mike on Nov 09, 2011. Ownership: Just Bought. Knowledge Level: AC/DC is more than a band — (90 of 172 customers found this review helpful
Ref# 127,353 Guest 2 Bank Battery Charger
Pros: Great Product and fits my project perfectly.
Cons: Manufacturer has discontinued this product and that is a big issue for my product. Good price from Batterystuff but not the lowest.
Other Thoughts: Batterystuff has a large selection of products and has very fast response and delivery time.
Is this review helpful?
Written by JBV on Mar 13, 2013. Ownership: Just Bought. Knowledge Level: Genius is my way of life — (79 of 157 customers found this review helpful

See More Reviews

Manuals & Tutorials

Chargers Tutorial

Order Line: 1-800-362-5397
M–F 6am–5pm PST
Tech Help: 541-474-4421
Fax: 541-471-6014
276 Tech Way, Suite A
Grants Pass, OR 97526
Buy Veteran, SEMA Member, and Blueribbon Coalition Blueribbon Coalition SEMA Member Buy Veteran