Schumacher PSJ-1812 DSR ProSeries 1800 Peak Amps Jump Starter and Portable Power Unit

• 1800 peak amperes, 280 cranking ampere and 225 cold cranking amperes
• 18 Ah professional grade, high output AGM battery
• 12 Volt DC power outlet
• Built in automatic charger
• LED indicators for charging, charged and battery status

This booster has no air compressor or light or any other fancy thing such as a radio. What is does have is power and it does what its made to dojump your car. It charges quickly and uses a a standard extension cord plug so your booster doesn't go to waste when you lose the ac adapter. It also stops charging automatically.

The first day I used it I jumped a Mercedes SUV 3 times and the battery indicator still indicated above 75%. And it had no trouble boosting the large V6 engine. In fact it still has 75% power after using it to jump 5 other cars.

Its lightweight and thin and seems well built. I'm glad I bought this booster and the price was right given the cold cranking amps.

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I have owned 2 other jump starters over the years, but I've always had the problem of leaving them plugged only to have ruined them because of overcharging, so I have some experience using these kinds of units. I bought this unit almost a year ago and it has worked flawlessly! I charged it up when it arrived and didn't use it until maybe a month or so later when my Honda Odyssey's battery was dead (kids left the cabin lights on). It started the van right up no problems. Since then I have used it probably every couple months for myself or friends. One week we went camping with a few other families and the kids once again left the lights on in their respective vans. This thing started 3 vans right in a row without recharging. I say that is quality!

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This jumper is all business. No useless features like a light, compressor or radio. Heavy and well built. Better than any big box store units including Craftsman. Cables are just the right length and very heavy gauge. Starts dead 4 cylinder cars with no effort. Also jumped a Silverado 6 cylinder. Once again no problem. I will also use this to power up my 12 volt Ham handheld radio when we lose power in this area. You will need to purchase a short extension cord to charge this. Every household has one of these. The best feature of this is that you can leave it plugged in to keep fully charged. If you buy A Jump-N-Carry and leave it plugged in you will fry your jumpers battery. I highly recommend this unit.

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I've owned 2 others the same size, and this is the most powerful.

By Coincidence, It arrived last night, and my kid had left the car lights on all night, so my battery was completely dead today, (no interior lights or sounds, clock reset....). This Jump-Start-Battery had only charged 12 hours (not the 36 hours the stickers on the box say you need to charge before first use). 30 seconds after connecting to my dead battery, my car started in less than a second of cranking. I have a 6 cylinder 330CC motor (I haven't yet tried this on the 8 Cyl 430CC motor I bought it for, but I'd suspect with a full charge it would work great on that car too).

The Battery Cables to the clamps are Thick (this is good), the battery clamps are protected by plastic (no exposed metal to short out while stored in the trunk, which is important since this unit doesn't have a switch to disconnect Voltage to them while in storage). There is a 12V (Cigarette lighter) receptacle, Which can be used to plug in a 12V light, (This unit doesn't have a light built in, which isn't too bad, since my previous jump-starters w/ lamps built-in occasionally died when the light switch was bumped and left on by things thrown in the trunk with them). 12V receptacle is also handy for powering a 120V AC inverter, or charging Cell Phones during power outages in my home.

The Built in Charger will not overcharge the battery if left connected (some other units lack this feature).

One item I wished were included however is a power cord, this did Not have a cord to connect the unit to the wall, I purchased (and am happy with)

C2G/Cables to Go 03115 18 AWG Outlet Saver Power Extension Cord (NEMA 5-15R to NEMA 5-15P), Black (6 feet/1.82 Meters)

You might want a longer or shorter cord. A cheaper thinner gauge cord would also be sufficient for the charging.

I'm very pleased with this compact powerful Jump-starter, and I'm ordering another one today to give as a gift.

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Bought this after buddy recommended the brand; as

he's had similar about 10 yrs; now on his 3rd battery

replacement. Charged it 3 days as per sticker

and first use was on a Waverunner with a dead

battery that had not run in several months. It

cranked over fine but did not start. Waited

a couple minutes and cranked again and it started.

I checked the battery status of the jump pack and

it was still green.