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2720A Guest On-Board Battery Charger 20A / 12/24V; 2 Bank; 120V Input

    • Based on 110 reviews
Condition: New
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$172.64 Why this price?

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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, May 12
Order within 8 hours and 53 minutes
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Style: ChargePro 10/10


Features

  • 12V 20 amp 2 bank on-board battery charger
  • Built-in safety: reverse polarity, over-current, over-voltage, over-temperature and ignition protection. In-line fuses for maximum DC wire protection
  • 100% Waterproof (IP67) and shock resistant for all fresh and saltwater applications
  • Dedicated battery charging, sensing and control per bank
  • For all 12 volt flooded and AGM lead acid batteries. 2 year warranty

Description

12V 20 amp 2 bank on-board battery charger. Built-in safety: reverse polarity, over-current, over-voltage, over-temperature and ignition protection. In-line fuses for maximum DC wire protection. 100% Waterproof (IP67) and shock resistant for all fresh and saltwater applications. Dedicated battery charging, sensing and control per bank. For all 12 volt flooded and AGM lead acid batteries. 2 year warranty.

Brand: Guest


Color: Unspecified


Product Dimensions: 2.4"D x 12.9"W x 7.5"H


Item Weight: 6.6 Pounds


Input Voltage: 12 Volts


Manufacturer: ‎Guest


Brand: ‎Guest


Model: ‎2720A


Item Weight: ‎6.6 pounds


Product Dimensions: ‎7.5 x 2.4 x 12.9 inches


Country of Origin: ‎China


Item model number: ‎2720A


Batteries: ‎1 Unknown batteries required.


Manufacturer Part Number: ‎2720A


Safety Rating: ‎Não Aplicável


Voltage: ‎120 Volts


Date First Available: February 14, 2018


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, May 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Bought as a replacement
Style: ChargePro 10/10
bought this unit to replace an older unit that failed. i also chose this unit as i had upgraded to a 24 volt system to run a new trolling motor. works great! keeps my batteries topped off and ready all time.
Reviewed in the United States on February 20, 2024 by PDQ
    • Works like it should
Style: ChargePro 10/10
No complaints. Had to redo my mounting, but overall it functions great. Just takes up a lot of real-estate.
Reviewed in the United States on March 5, 2024 by David M.
    • Easy to use.
Style: ChargePro 10/10
Maintains both sailboat batteries at 13v plus.
Reviewed in the United States on July 28, 2023 by Jamaica Jo
    • Has mounting holes for permanent install, but has a wall plug and says not to cut the 12V wires…
Style: ChargePro 10/10
I bought this to replace a 10 year old smaller version of this same charger. It appears to be more modern and better sealed. The only downside is this version no longer has screw posts on the charger like the old one - it just has wires coming out of the housing, with a 120V house plug for the A/C connection (why would anyone not direct wire it?), and the 12V wires have large ring terminals with a tag that says not to cut the wires (for some reason unknown to me). So if you are doing a permanent installation, you’ll either have to cut the wires anyway and hope that doesn’t mess up the timing of the computer charging algorithm or something, or fish the wires all through your boat every time if you ever have to remove or reinstall it. Or buy separate terminal blocks and modify the giant ring terminals to fit on them, and just have like 6 feet of extra 12V wires hanging around. Either way you’ll have to cut off the 120V house plug to connect it permanently to any shore power connection on the boat (or install a 120V outlet in a locker somewhere and hope it doesn’t ever get wet or come unplugged) Bring back the screw posts and let me do my own wiring. The wall plug and ring terminal cables could have been detachable, but I doubt anyone will use them anyway - who is mounting a charger this big on a boat small enough that you’re hooking it up with an extension cord (no shore power cord) and where the battery wires aren’t routed through bulkheads etc.? ... show more
Reviewed in the United States on June 20, 2022 by A Customer
    • A GOOD DEAL
Style: ChargePro 10/10
THE CHARGER WORK GREAT. Charges my two golf cart batteries (6V in series) and one 12V starting battery as advertised. Excellent value. Did however have to get creative to find a nice flat spot big enough to mount it, but got it done. My only complaint is the dumb question about longevity, check back with me in a few years not a few days, come on! ... show more
Reviewed in the United States on June 26, 2020 by Walt M
    • One charging
Style: ChargePro 10/10
Review Image by Tim & Brandy Neal Tim & Brandy Neal
Only one battery side will charge. I have two new batteries. If I swap leads it will read the other battery. Just the battery 1 leads not working. Inline fuse isn't blown. I don't know why it want pick up on that one lead.
Reviewed in the United States on April 12, 2024 by Tim & Brandy Neal Tim & Brandy Neal
    • Saves you money
Style: ChargePro 10/10
As expected Guest battery chargers are simply a dependable product that also extends/-really extends battery life. Had one in my sailboat that kept 2 marine batteries going for over seven years!
Reviewed in the United States on January 23, 2019 by Ronald Hess
    • Long term use
Style: ChargePro 10/10
Worked fine for a couple months, then just gets stuck in auto-maintain and no longer charges at all even if your battery is almost completely dead until you unplug it and replug it in. Makes it useless if you use it all the time. I am mailing Marinco seeing if they will fix the issue.
Reviewed in the United States on January 19, 2024 by Scott

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