Schumacher SEM-1562A Automatic Microprocessor Charger/Maintainer, 1.5 Amp


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SKU: 12266061
MFG: SEM-1562A


SEM-1562A 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 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 possible.

Unique automatic battery charger maintains both 6 and 12 volt batteries keeping them at full charge using float-mode monitoring. Perfect for charging small batteries. Great for maintaining small and large batteries kept in storage – motorcycles, classic cars, RVs, boats.

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 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 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 due to 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.

In addition, because of the constant monitoring the battery, the SEM-1562A can react to charging needs swiftly, efficiently and accurately, allowing charging cycles to click on and off in the same way. Because of this, batteries can be left attached to the SEM-1562A 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 in the case of a reverse hook-up; and a Desulphation mode for charging batteries left discharged for an extended period of time.


  • 1.5 amp charger and maintainer
  • LEDs indicate: charging, charged and trouble
  • Quick-Disconnect Harness - Snap either connector into place in seconds – Use the 50 amp clamps or permanently attach the ring connectors…great for hard-to-reach motorcycle batteries
  • Reverse-hookup protection
  • For 6 and 12 volt lead-acid batteries
  • Automatic battery charger with reverse-polarity protection
  • Most starter, deep cycle and gel type batteries can be charged and maintained
  • Automatically switches from full charge to float-mode monitoring as needed
  • For maintaining small and large batteries kept in storage
  • LEDs indicate: amber light indicates battery being charged, green light indicates battery is fully charged, and the red light indicates trouble
  • This battery charger has no power on/off switch
  • Plug into AC receptacle only after battery connections are made


Charger Type Fully Automatic Microprocessor Controlled
Output Voltage 6VDC
Input Voltage 120VAC
Output Current Cont 1.5A

Detachable Battery Clips

Detachable Ring Lugs

Unit Height 2.67"
Unit Width 2.19"
Unit Depth 5.90"
Unit Weight 2.13
Rating Agency UL
Input Current Cont 0.41A
Warning: Cancer and Reproductive Harm - Chemical DEHP