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  • Schumacher SE-1275A 2/12/75 Amp Automatic Onboard Battery Charger
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Schumacher SE-1275A 2/12/75 Amp Automatic Onboard Battery Charger

104 customer reviews
| 15 answered questions

List Price: $120.95
Price: $70.04 & FREE Shipping. Details
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Ships from and sold by Amazon.com.
  • A 6 function rotary switch prevents overcharging
  • Made for 12V batteries
  • 75-amps help emergency engine starting
  • 12-amp fast charge charges batteries in 2-5 hrs; 2-amp trickle charger charges batteries in 2-12 hrs
  • 2 LED lights display charge status
  • This product cannot be shipped to Oregon or California
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17 new from $63.04 1 used from $56.03

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$70.04 & FREE Shipping. Details In Stock. Ships from and sold by Amazon.com.

Frequently Bought Together

Schumacher SE-1275A 2/12/75 Amp Automatic Onboard Battery Charger + Battery Tender 021-0123 Battery Tender Junior 12V Battery Charger + Battery Tender 081-0069-6 Ring Terminal Harness with Black Fused 2-Pin Quick Disconnect Plug
Price for all three: $99.49

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Product Information

Technical Details
BrandSchumacher
Item Weight25 pounds
Product Dimensions5 x 11 x 10 inches
Item model numberSE-1275A
Manufacturer Part NumberSE1275A
  
Technical Specification
  • Product Warranty: For warranty information about this product, please click here [PDF]
Additional Information
ASINB000BO8TTY
Best Sellers Rank #3,785 in Automotive (See top 100)
Shipping Weight13.1 pounds (View shipping rates and policies)
Domestic Shipping Item can be shipped within U.S.
International Shipping This item is not eligible for international shipping. Learn More
Date First AvailableAugust 17, 2005
  
Warranty & Support
Warranty, Parts: Parts

Product Warranty: For warranty information about this product, please click here [PDF]
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Product Description

This automatic onboard battery charger is a high output portable charger, is completely automatic, and great for professional mechanics as they can be used for deep cycle batteries. Its 75-amps helps engines for emergency starting and the 12-amp fast charge helps to charge a battery in 2-5 hours. The 2-amp trickle charge charges a small 12-volt battery in 2-12 hours. It includes 2 LEDs which light up when the battery is fully charged and a 6 function rotary switch prevents overcharging of batteries.

Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

47 of 47 people found the following review helpful By Texas Sutherland on September 16, 2007
Verified Purchase
I'm impressed by this product. I've used other battery chargers before but the SE-1275A is the best ever. The things I like best are: Wide-mouthed alligator clips that clamp on easily and don't slip off, automatic shutoff when a battery is fully charged, the rugged steel cabinet and overall quality construction.

If I could change anything about it, I would suggest adding readable instructions to the back of the cabinet, a longer electrical supply cord (one or two extra feet would be perfect), and a larger analog meter.
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39 of 43 people found the following review helpful By Lafayette H. Bunnell on April 21, 2008
Verified Purchase
Heavy - steel and copper. Thats what counts in a charger and this one has both. Don't buy the lightweights from China. Made in Mexico, but its an old standby US design.

OKAY its a year later... this one died early on - they sent a new one after I retutned the bad one. That one died too. They quickly sent another without any return needed, and the rep sounded like he was Po'd at his company for allowing so much junk to go out the door. Now I have two working and one dead for spare parts, and even after the hassle these are still the most for the least on the market. You only other option is sears, and they appear to be made by Schumaker also, or harbor freight which should send its electric stuff with a death certificate.

2014: Your only hope is a "GENIUS" charger made in the USA and made forever - really. More money, but not going into the dump every 2 years or less. Give up on Schumaker - they sold their soul about 30 years ago when they closed the factory in Chicago.
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21 of 23 people found the following review helpful By Tech on March 24, 2008
Well Made. Does what it's supposed to.Customer service is non existent !
You get an answering machine, and never receive a return call, ever !

The Documents leave out MANY ways that this item will respond to charge levels and charge cycles of various batteries, so it's off to the internet or trial and error if your unit does something that you don't understand. One of the tricks to this charger is to start out on 2 amp for about an hour, then raise up to 15 amp. When the charger reads full charge at 15 amps, drop to 2 amp and top the battery off for a full charge. It will take about 6 hours to charge a depleted battery.

The jump start barely started my car,but it did the trick,and it's a very hard to start car that sometimes won't jumpstart, so I was impressed.
It helps to charge a very dead battery for about 15 minutes before you jump start it with this unit.

For the price, everyone should own one of these. It's a great product, who's only MAJOR FLAW is the embarrassing lack of customer service. Schumacher Management should be ashamed of themselves.
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9 of 9 people found the following review helpful By G. Morris on February 7, 2013
Verified Purchase
I bought this to give a very dead battery some life. After about 4 hours on the lowest setting and the battery showing about a 70% charge I disconnected and the car fired up. The car continues to fire up with no problems over one month after using this charger. (where we live the nights can get down to 10F which drains a battery quickly if you don't use the car regularly) This charger was easy to connect following the included instructions. The only thing I'd add is follow the instructions carefully and don't plug the unit in until connected and unplug the unit after you're done but before disconnecting the cables. And one more tip: set the charger to the middle setting for about 20 minutes before backing off to the lowest setting (my step son who's a 20-year master mechanic made this suggestion to "excite" the electron molecules back to life -- it will make the trickle charge more effective -- seems to have worked since my tired battery is now full of life).
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13 of 15 people found the following review helpful By Anthony V. Chan on February 22, 2008
Just got it today. Tried to start the car with it, but it wasn't enough juice, so I waited about three minutes with it set on 75A engine start mode. Started it successfully after that. Ran the car for 5 minutes. Turned off the engine and tried to start the car without the device. Success. Now it's charging in the garage. Looks good so far. I agree with the previous review that the extension cord is too short.
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4 of 4 people found the following review helpful By SJK on June 25, 2014
Verified Purchase
I've only had this charger for a few days, but have already put it to work after the solar charge controller on our RV pooped out and let the batteries run down. It took approximately 8-1/2 Hours for each deep cycle battery on the 12-Amp setting and when the needle on the gauge reached 100%, the green "Full Charge" LED illuminated and the unit automatically switched into the 2-Amp float/maintain charge mode. The charger naturally gets fairly warm during operation and emits a noticeable hum, but every battery charger I've owned or used has done that, so nothing out of the ordinary. The cabinet is black powder coated steel and seems fairly rugged. The dimensions are approximately 10-1/2" Long X 8-1/2" Wide X 5" High, so it doesn't take up too much room on my workbench during use or on the shelf when being stored between uses. The charger has a retractable plastic carry strap that doesn't really feel all that strong to me, especially when considering this unit weighs roughly 12-pounds, so I don't trust it enough to use it as the sole means to lift or carry the charger. The unit has a 6-foot long 3-wire power cord and the battery clips are zinc plated steel connected to a 6-foot long, 12-gauge copper cable. So far this charger has worked very well for me and seems decently made, so overall I'm happy with it.
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Schumacher SE-1275A 2/12/75 Amp Automatic Onboard Battery Charger
This item: Schumacher SE-1275A 2/12/75 Amp Automatic Onboard Battery Charger
Price: $70.04
Ships from and sold by Amazon.com