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Don Schumacher Racing Pro Series Jump Starter Booster Box 275 CCA DSR PSJ2212

Product #: DSRPSJ2212

Detailed Description:

No nonsense jump starting power is what you get with this Schumacher SJ-2212 Pro 2200 Amp Jump Box!

• High output professional grade AGM batteries
• 3 Amp built-in, automatic charger
• Tool has On/Off switch
• Reverse hook-up alarm
• Two function digital display - indicates vehicle battery voltage and percentage of charge of internal batteries; also indicates charging system voltage while engine is running.
• 12-Volt DC power outlet
• Heavy duty clamps have replaceable copper jaws
• Durable, rust and corrosion proof, polypropylene case
• Unique, high-impact rubber base for case protection
• Vented case for added safety
• 22 ah Professional-Grade, High-Output AGM Battery
• 2200 Peaks Amps
• 330 Cranking Amps
• 275 Cold Cranking Amps
• 4-Gauge, 50-inch cables

I'm looking for a jump starter that can be left plugged into electricity at all times so the battery will be ready for an emergency, I'm looking at the Don Schumacher Tool, DSRPSJ2212 and my questions are below.

Question: Can you keep this jump starter plugged into the wall at all times without damaging the battery in the jumpstarter? I believe most jump starters if left plugged in will over charge the battery therefore shortening the battery life.

Answer: This battery booster will not over-charge. I have included information below from the tool manufacturers website on the DSRPSJ2212, read for more information.

Charging of the internal battery with built-in charger

After removing the Portable Power Jump-Pack from the carton, charge it for a minimum of 8 hours before using even if the green Full Power LED glows.

NOTE: The ON/OFF switch does not have to be in the ON position to recharge the internal battery.

1. To charge, plug extension cord into charger plug on the back of the Portable Power Jump-Pack. (Extension cord not included; must be purchased separately.)

2. Plug the extension cord into 110V AC electrical wall outlet.

3. The red LED will glow indicating charging.

4. The green LED will glow when the battery has reached full charge. This could take up to 72 hours on some charges due to age and condition of the battery. The charger will automatically drop into a float mode and maintain the battery at full charge without damaging the battery. The Portable Power Jump-Pack can be left plugged into the 110V wall outlet indefinitely to maintain full power.

5. Recharge the Portable Power Jump-Pack after use and every 3 months to full charge status to extend the battery’s life.

Question: When this jump box is plugged in, is it quiet or does it make a sound while plugged in?

Answer: This battery jump box unit does make some sound from a small cooling fan while on charge. You have to listen closely to hear it.

Question: Does this booster box have a built in volt meter?

Answer: Yes, the voltage displays on the unit. Once the car is jumped started and the switch on the PSJ-2212 is turned to "0" (leave the cables hooked up) the output voltage from the car will be displayed. This is a great feature that can give you a quick glimpse of alternator output.

Question: Are the cable jaw clamps hot on both sides of the jaw? Meaning do they have power on both sides of the clamp?

Answer: Yes, there is a braided stanless steel cable that connects both sides of each jumper cable clamp, making them live on both sides. Some cheap jump boxes don't have this feature making it harder to get a good connection when jump starting a car.

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