Schumacher SE-1-12S-CA Fully Automatic Onboard Battery Charger – 1.5 Amps

1.5-amp charger
Has reverse polarity protection
Molded with plastic weather proof case


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$36.28 $40.69 (as of May 25, 2019, 4:49 pm) & FREE Shipping. Details


Schumacher SE-1-12S Trickle Charge Battery Maintainer Motorcycles, RV’s, classic hot rods all have one thing in common. Besides the fact that they are all incredibly fun to take out in the summer time, the problem they all have in common is the fuss of a dead battery every spring. Wouldn’t it be nice if the battery could stay charged, even in storage when the vehicle is scarcely being used at all? That is what the Schumacher SE-1-12S does. A battery maintainer turns on and off as needed, automatically, to keep batteries charged up even when used infrequently. Features of the SE-1-12S For 12 Volt batteries 1.5 Amp trickle rate charges in 2 to 12 hours Fully automatic On-board feature allows mounting of charger next to the battery on the vehicle Hardware and mounting brackets are included Wire leads are short for safety purposes, to prevent getting tangled in moving engine parts LED lights indicate Power On or Charged Reverse hookup protection CUL, UL rated SpecificationsOutput Voltage: 12V Input Voltage: 120VAC | VDC Charge Rate: 1.5A Length: 8.25″ Height: 3.88″ Width: 8.88″ Warranty Life: 2yrs

The Schumacher SE-1-12S Fully Automatic 1.5-amp Onboard Battery Charger is an AC powered automatic trickle charger / maintainer for use with 12 volt lead-acid batteries. The unit features an automatic charge cycling process that allows charging to turn on and off automatically as is necessary, and its “onboard” design and included hardware makes for easy, convenient mounting adjacent to batteries both inside and away from vehicles. Additional features include: 1.5-amp trickle charge rate, an LED charge indicator, reverse-hookup protection, molded plastic case and short leads for safety.

The Schumacher SE-1-12S Fully Automatic Onboard Battery Charger - 1.5 Amps

Dedicated, automatic 12 volt battery charging for batteries of vehicles in storage.
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The Schumacher SE-1-12S Fully Automatic Onboard Battery Charger in use on a motorcycle battery

Compact size and onboard design allows for multiple mounting options.
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Mountable Automatic 12-Volt Battery Charging

Designed to allow for safe charging of batteries used with RV, street rods, classic cars, mototcycles and snowmobiles, as well as deep-cycle or most other commonly used lead-acid batteries, the Schumacher SE-1-12S Fully Automatic Onboard Battery Charger is a convenient accessory suitable for use with most any vehicle that experiences long storage periods between uses, or requires improved battery performance during cold weather. Light, rugged and compact, its low-profile “onboard” outer design and included mounting hardware allow for easy mounting close to, if not directly on your battery’s outer housing. This makes it perfect for use as a dedicated trickle charger, although it can also to mounted away from your vehicle in the case of dedicated, stand-alone charge stations for batteries. Once mounted, with the permanent ring terminal connections made and the AC power cord properly connected to a grounded 120-volt outlet*, the SE-1-12S automatically switches between charge mode and maintain mode as necessary. The charger contains an easy-to-read LED indicators related to battery connection and charge state, and an electronic control circuit which safeguards against overcharging the battery ensuring that your stored battery is safely kept at proper levels and will be ready when you need it.

Additional features include: reverse hook-up protection that keeps power from flowing unless a proper connection exists; a 1.5-amp trickle charge rate; intentionally short battery leads and AC power cord that won’t get tangled in moving engine parts; and a rugged molded plastic outer case.


  • Charger Type – Fully Automatic Controlled
  • Output Voltage – 12 VDC
  • Input Voltage – 120 VAC
  • Output Current Cont: 1.5A
  • Intput Current Cont: 0.4A
  • Dimensions – 1.57″ H x 4.64” W x 5.03” D
  • Product Weight – 1.96 lbs.

What’s in the Box

  • Schumacher SE-1-12S Fully Automatic Onboard Battery Charger (with attached ring terminal cable assembly)
  • Hardware mounting brackets and screws
  • 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, along with 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 when it comes to 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.

* Not for use with ungrounded 2-pronged outlet adapters; ensure any extension cords used are grounded and are of sufficient AWG size.

1.5-amp charger
Has reverse polarity protection
Molded with plastic weather proof case
Plugs into an electrical wall outlet
Can install next to the battery on automobiles, boats, tractors, golf carts, and other equipment
Fully automatic
Turns on and off as needed
Safe charging
Indicate power on and charged
Reverse polarity protection

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