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Schumacher Electric Ship ‘n Shore Two-Bank On-Board 15A Car Battery Charger and Maintainer, 2-in-1 Solution, Sequential Charging, for Power Sport, Automotive, and Marine Batteries, SC1644

  • Based on 97 reviews
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Availability: Only 4 left in stock, order soon!
Fulfilled by Amazon

Arrives Wednesday, Jul 15
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Style: 2 Bank


Part Number: SC1644


Features

  • 2-in-1 Device - Charges and maintains batteries
  • Immediate Charging Power - Delivers 15-amp charging and maintaining
  • Time Slice Charging - With dual charging banks, two batteries can be charged sequentially, with the first battery charging for 15 minutes, then the second battery charging for 15 minutes, before cycling back to charging the first battery
  • Smart Trickle Charge - Maintains 12V batteries safely over time without overcharging
  • Wide Compatibility - Works with gas and diesel vehicles, 12V batteries, including lithium (LiFePO4), standard, AGM, and deep-cycle battery types
  • Reverse Polarity Protection - Prevents damage to your battery and vehicle if clamps are accidentally reversed
  • Dust and Water Resistant IP65 rating allows for safe use in a wide range of environments, even waterside, with protection against dust and water intrusion
  • Permanently Mountable - Mount vertically or horizontally to walls, work benches, and other flat surfaces via mounting holes in unit
  • Fully Automatic - Starts charging automatically after batteries are connected and automatically switches to maintain mode after batteries are fully charged
  • Complete Package - Includes (1) SC1644 Two-Bank On-Board Marine Sequential Battery Charger and (1) user manual

Description

On the water a dead battery can be disastrous. With the Schumacher Electric Ship ‘n Shore SC1644 12V Two-Bank On-Board Marine Sequential 15A Battery Charger, boating enthusiasts can keep their marine lithium (LiFePO4), standard, AGM, and deep-cycle batteries fully charged and in top condition. Plus, the SC1644 has two charging banks allowing users to charge two batteries with sequential time slice charging. This charges the first battery for 15 minutes, then charges the second battery for 15 minutes, before cycling back to the first battery until both batteries are fully charged. Plus, the charger is fully automatic. Simply hook up the batteries, select the battery type, and charging will start automatically. Once both batteries are fully charged, the SC1644 will shift to maintain mode. The SC1644 features a 15A rapid charge rate for fast charging and water-resistant IP65 construction. It can also be mounted permanently in either a vertical or horizontal position. Other features include charging status and error LED indicators, ring leads with inline fuses, and selectable battery type.

Brand: Schumacher Electric


Color: Blue


Product Dimensions: 13"D x 10.5"W x 3.5"H


Output Voltage: 12 Volts (DC)


Specification Met: UL


Output Voltage: 12 Volts (DC)


Input Voltage: 12 Volts


Battery Charge Time: 15 minutes


Current Rating: 15 Amps


Amperage: 15 Amps


Connector Type Used on Cable: clamp


Number of Ports: 2


Item Dimensions D x W x H: 13"D x 10.5"W x 3.5"H


Specification Met: UL


Brand: Schumacher Electric


Mfr Part Number: SC1644


UPC: 026666816441


Manufacturer: Schumacher Electric


Model Number: SC1644


Warranty Description: 1 year


Color: Blue


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jul 15

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.

  • Klarna Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Nice Portable Charger
Style: 2 Bank Part Number: SC1644
My husband uses this for the boat. We have had it for over a year and it is functioning just fine and charges the batteries up. We would buy this again.
Reviewed in the United States on May 9, 2026 by DeeDee

  • 2 bank waterproof onboard battery charger
Style: 2 Bank Part Number: SC1644
The answer to my charging issues. With this charger I never have to worry about if the batteries are ready. They are always ready to go. Unit appears well made, waterproof, easy to use, it’s wonderful! I only wish the leads to the 2 batteries were a couple feet longer but we made it work. I no longer have to deal with bringing a charger down to the dock, or rain, it’s just handled with a quick plug in… very pleased. Update it’s already rained twice since purchasing and I have zero problems with the unit. Should have bought one long ago! ... show more
Reviewed in the United States on July 20, 2025 by Laura McKee

  • Marine Charger for dual battery bank
Style: 2 Bank Part Number: SC1644
I bought this charger because I added a Lithium 200ah to my house bank. Plus I have my starter battery which is Lead. Not a lot of chargers out there for different chemistries. Surprisingly quiet and does not get hot. Easy to setup and nothing to it. I cut the plug to install on my AC panel. It has topped off my batteries and is maintaining them. Well built! I guess the big question is longevity? If this lasts this charger is top notch. ... show more
Reviewed in the United States on February 1, 2024 by Maritime T-Shirts

  • Don’t work
Style: 2 Bank Part Number: SC1644
Looked used ! Didn't work JUNK!!!!! Don’t buy!
Reviewed in the United States on May 25, 2026 by Rou Billions

  • Works as advertised.
Style: 2 Bank Part Number: SC1644
Easy install, I'm using it to charge my trolling motor batteries. After a full day of use batteries were back to full charge in about 6 hours.
Reviewed in the United States on June 21, 2024 by Stan

  • Schumacher Sequential Battery Charger
Style: 2 Bank Part Number: SC1644
Seems to be just the thing I needed to charge the new lithium batteries I just purchased for my boat's trolling motor.
Reviewed in the United States on October 31, 2023 by Panhandle Fred

  • Great product
Style: 2 Bank Part Number: SC1644
Worked great on my RV
Reviewed in the United States on July 19, 2024 by Amazon Customer

  • Easy installation
Style: 2 Bank Part Number: SC1644
Good replacement for another brand I had. Detailed instructions, solid unit
Reviewed in the United States on January 22, 2024 by rickc

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