• Features 15A to charge and 3A to maintain your battery
  • Auto voltage detection automatically detects 6 or 12V batteries
  • Automatically selects charge rate for charging and maintaining
  • Reverse hook-up protection ensures charger will not operate if clamps are reversed
  • Charges compatible battery types, including standard, AGM, gel and deep-cycle batteries

customer service= great have used schumacher products for years=have always worked perfectly, great warranty this model 1280 was suggested to me by tech support using for my cabin 12 volt marine batteries,truck battery,atv batteries

Have purchased over 15 of these now. Use them in the auto glass industry to support the vehicles battery while we recalibrate the forward facing camera after windshield replacement. Only thing I wish was different was that it didn't go to sleep to fast. Like to keep my eye on the voltage. Still works perfect though!

My Battery was dead and nothing would charge it (I tried 3 others). I put this on the battery and left it on through the night and it started right up. Best I have used.

as described update: it still works well.

Lightweight and easy to use. I'm happy with the product

If you read the instruction book and acquaint yourself thoroughly with the charger, you should be very happy with this one, as I was. A $45 charger that puts out 15 amps is a great deal. All functions worked as they should, the voltmeter was accurate (to the nearest tenth of a volt) the charge progress meter was nice to have, the clamps were great, the little fan came on only when charging at high amps, it charged all batteries I had, from 12 Ah to 90 Ah to perfection, small size, handy handle, cords were plenty long enough, if you need a battery charger, you will be happy with this one like I was.

In a little over a week since this charger arrived I have used it to fully charge the four (6v) deep cycle house batteries (225 AH each) in our motor home (without removing them), the 12v engine battery for same RV, and a huge old Interstate MT-49 Mega Tron II 12v battery kept in the garage as a back-up for emergency jump starting. This big old battery is also my go-to power source for a Turnigy Accucel 6 micro-processor charger for lithium RC batteries, so my hope is this new multi-stage charger will maximize the old battery's longevity. For the past 10 years or so I have kept it alive just occasionally juicing it up with my ancient single-stage Schumacher 6/12v , 2amp/6amp charger. There is no precision to it, just check the voltage periodically and disconnect when it approaches 13v; not optimum charging but taking care not to overcharge it either. This new multi-stage charger is a technological marvel by comparison, providing the percent of charge throughout the process, adjusting the charge to top off the battery based on input from the battery, and it goes into float mode when the charge of the battery connected reaches 100%. One glitch I encountered when charging the old garage back-up battery was that the charger apparently went into float mode prematurely, initially. When I checked on it at one point the green light was on indicating it had switched to float mode, supposedly at full charge. It became evident this was not the case when I checked the voltage. Do this by unplugging the charger from the AC receptacle, wait around 10 seconds for all the charger lights to extinguish, then plug it in again for a voltage readout. It showed 12.6v, not a full charge for a 12v battery like this, so I hit the battery size button to initiate another recharge. This restart produced a reading of 77% and it went on to eventually indicate the battery was fully charged at 13 volts. Considering the battery's age that's probably all it has left in it and I will continue to use it as described until it's finally flat gone. While reading the manual is very helpful to comprehend the charger, I disagree with the review suggesting it must be memorized. Using this charger is very intuitive once you understand it's controls, by reading the manual, and using the charger accordingly. There are only two buttons to choose from. The left one controls battery size where the two options are either a snow flake or a boat. Take the snow flake to mean a battery for a snowmobile, motorcycle, lawn mower, or any similar small battery. Of course the boat icon represents vehicles with larger batteries. It could have been a truck icon or that of an automobile I suppose, but it doesn't matter. I find the juxtaposition of the little snow flake vs. the big boat permanently internalized now, no memorization needed. The other button is battery type, with the choices being Standard, AGM, & Gel. My charging mentioned above has all been on the standard setting. I don't own any AGM or Gel batteries at this time, but if you do you will know it, and simply select the correct option for your battery. Excuse me for going on so long ... out!

I like that you can check the progress of the charge. Also like the quiet no noise charging process. Works great.

Worked perfectly. Nice unit, all funtions worked well, good quality.

I have an older model of this charger. It is the 12 amp model. A fishing buddy needed a new charger and I suggested buying this one. He loves it. Suitable for quick charging or for a float charge.