Schumacher SEM-1562A-CA 1.5 Amp Speed Charge Battery Maintainer

$24.94 (as of April 12, 2018, 9:15 am)

6-volt and 12-volt battery charger; automatically changes from full-charge to float-mode monitoring to prevent overcharging
Ideal for keeping batteries charged while in storage
Rugged plastic housing

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Schumacher’s Speed Charge Maintainer maintains both 6-volt and 12-volt batteries, keeping them at full charge using go with the flow-mode monitoring. The unit will automatically switch from full-charge to go with the flow-mode monitoring when the battery is charged to prevent damage. Smart display LEDs indicate whether the unit is in charged, charging, or trouble modes. The SEM-1562A-CA is perfect for charging small batteries, maintaining small and large batteries kept in storage, and batteries for motorcycles, classic cars, ATVs, and boats. It features a quick disconnect harness for easy removal, and reverse hookup protection in case the clamps are accidentally connected to the wrong terminals. In cold climates, this unit is indispensable for keeping batteries warm overnight and ready for starting.

The Schumacher SEM-1562A-CA 1.5 Amp Speed Charge Maintainer is a unique AC powered automatic charging accessory for use with everything from smaller batteries designed for motorcycles, tractors and mowers, to standard car / truck batteries and marine / deep cycle batteries. Designed around an internal microprocessor which constantly collects information from the battery that the unit is attached to, the SEM-1562A-CA effortlessly and quickly ensures that your 6 and 12-volt batteries are maintained at optimal levels, and does so in the fastest and most convenient means conceivable.

Microprocessor Controlled Charging for 6 and 12 Volt Batteries

Microprocessor controlled charging and maintenance is simply the easiest way to keep batteries at optimal power levels. This convenience and speed is experienced from the moment that the SEM-1562A-CA is connected. First, the unit utilizes the user’s choice of either easy-to-connect and remove battery clips, or permanent ring terminals (both included), each of which allows for charging or maintaining of batteries whether they be in or out of vehicles. The SEM-1562A-CA also features automatic voltage detection which allows it to automatically determine whether the connected cell is a 6-volt battery or a 12-volt variety. This eliminates the possibility of damaging a battery because of choosing the wrong charging settings. Once your battery type has been identifified, a multi-phase charging process kicks in which plays out via the unit’s automatic Charge / Maintain modes. Tipped off by the data analyzed by the onboard microprocessor, your battery is supplied with a constant charge until it reaches a preset level – at which point charging ceases. Eventually, if the charge falls below a certain level the SEM-1562A automatically transitions into Maintain Mode, delivering a small, safe charge that will raise the battery’s level back to where it should be.

Estimated charge times for various battery types using the Schumacher SEM-1562A 1.5 Amp Speed Charge Maintainer

Fast recharging of multiple battery types and sizes (50% depletion assumed).
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In addition, As a result of the constant monitoring the battery, the SEM-1562A can react to charging needs rapidly, efficiently and appropriately, allowing charging cycles to click on and off in the same way. As a result of this, batteries can be left attached to the SEM-1562A-CA indefinately for storage without the risk of overcharging and/or damage. Additional features include: automatic temperature compensation which adjusts the maximum charge voltage and maximum maintain voltage based on the ambient air temperature; thermal runaway, which automatically reduces the current if it detects the battery may be getting too hot; an auto-start feature that keeps power from flowing unless a proper connection exists, or when it comes to a reverse hook-up; and a Desulphation mode for charging batteries left discharged for an extended period of time.


  • Charger Type – Fully Automatic Microprocessor Controlled
  • Input Voltage – 120 VAC
  • Input Current Cont: 0.41A / 0.32A
  • Output Current Rating – 12V / 6V @ 1.5A
  • Maximum Charge Voltage – 12V – 14.8V / 6V – 7.4V
  • Dimensions – 2⅝” H x 6” W x 3” D
  • Product Weight – 2.5 lbs.

What’s in the Box

  • Schumacher SEM-1562A 1.5-amp Speed Charge Maintainer
  • Battery Clip Cable Assembly
  • Ring Terminal Cable Assembly
  • Users manual and warranty information

Two-Year Limited Warranty

Schumacher Electric Corporation (the “Manufacturer”) warrants this battery charger for two (2) years from the date of purchase at retail against defective material or workmanship that may occur under normal use and care. If your unit is not free from defective material or workmanship, Manufacturer’s obligation under this warranty is solely to repair or replace your product with a new or reconditioned unit at the option of the Manufacturer. It is the obligation of the purchaser to forward the unit, at the side of mailing charges prepaid to the Manufacturer or its authorized representatives in order for repair or replacement to occur.

About Schumacher Electric Corporation

Since 1947, Schumacher Electric Corporation has been leading change and driving performance to exceed its customers’ expectations. Engineered patent pending technologies and award winning marketing allows Schumacher to be the brand of choice in the case of portable power and battery charger/jump starter/maintainer/tester needs. Passion and commitment is the Schumacher way which shows as they are official supplier for chargers, jump starters and inverters for NASCAR.

6-volt and 12-volt battery charger; automatically changes from full-charge to go with the flow-mode monitoring to prevent overcharging
Ideal for keeping batteries charged whilst in storage
Rugged plastic housing
Includes charger, jump cables, ring connectors
1-year limited warranty

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