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Priority Start 12-Volt-Pro-SP PriorityStart Automatic Battery Protector

4.3 out of 5 stars 91 customer reviews
| 6 answered questions

Price: $95.12 & FREE Shipping
In Stock.
Ships from and sold by Waldoch.
  • Enter your model number above to make sure this fits.
  • For 12 Volt battery systems. 1 Year Factory Direct Warranty.
  • Easy to Attach: Connect your existing vehicle positive cable to Priority Start. Attach the PriorityStart! cable to your battery's positive post. Attach the ground wire to the battery's negative post.
  • Successfully being used in vehicles with: 2 way/CB radios, Radar Systems, GPS, Cell phones, Computers, Flashlight Chargers, Mobile Equipment, Dual batteries, Hi-Amp Stereo Systems, Mobile T.V
  • Replaces: PSI-12-PRO, PSI-12-PROX-SP
  • **NOTE** This item is not intended to alleviate a weak battery or a malfunctioning recharging system.
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5 new from $95.12
$95.12 & FREE Shipping In Stock. Ships from and sold by Waldoch.

Frequently Bought Together

  • Priority Start 12-Volt-Pro-SP PriorityStart Automatic Battery Protector
  • +
  • INNOVA 3721 Battery and Charging System Monitor
Total price: $107.00
Buy the selected items together


Product Information

Technical Details

Brand PriorityStart
Item Weight 6 pounds
Product Dimensions 5 x 3 x 1.2 inches
Manufacturer Part Number PSI-12V-PROMAX
Voltage 12 volts

Additional Information

ASIN B0030A10V0
Customer Reviews
4.3 out of 5 stars 91 customer reviews

4.3 out of 5 stars
Best Sellers Rank #23,639 in Automotive (See top 100)
#131 in Automotive > Tools & Equipment > Jump Starters, Battery Chargers & Portable Power > Battery Chargers
#393 in Automotive > Replacement Parts > Batteries & Accessories
Shipping Weight 6 pounds (View shipping rates and policies)
Date First Available December 22, 2010

Warranty & Support

Product Warranty: For warranty information about this product, please click here

Product Description

Protect Your Battery! SPARES - REPAIRS - UPGRADES GENUINE OEM Priority Start MPN 12-Volt-Pro-SP NO EXCHANGE REQUIRED ! Sells elsewhere online for MUCH MORE Save $$$ right here at GetThatPart ! About This Item Acquired from the US Government. Actual item from lot is shown. Used pull, inspected thoroughly. Actually may be new and unused - see pictures - but, we just don't know, so we are selling it as used. Only what is shown is included. Guaranteed functional and guaranteed for 30 days. Know What You are Buying We typically take the time to post actual pictures of the unit you are buying We also typically take the time to thoroughly test the units we are selling Buy with CONFIDENCE from a reputable seller with 10 Years experience DESCRIPTION Specially designed for Law Enforcement, Fleets, Utility, Emergency, and Security vehicles with multiple accessories. PriorityStart! is an automatic computerized on/off ?switching? system protecting battery voltage and starting power. If battery voltage drains below 11.7 volts when engine is off, it automatically disconnects the load. The battery voltage immediately recovers. TO START: just step on brake pedal, starting power is automatically reconnected. Designed to handle 1000 ?starting amps?. Often multiple accessories mimic ?engine run?. The Pro-Series is specially designed to handle multiple accessory loads, utilizing higher value electrical components to monitor ?engine run? when the engine is off. Pro-Series is successfully being used in vehicles with: 2 way/CB radios Radar Systems GPS Cell phones Computers Flashlight Chargers Mobile Equipment Dual batteries Hi-Amp Stereo Systems Mobile T.V PriorityStart is an electronic cut off switch. It will not charge or maintain a battery.

Customer Reviews

Top Customer Reviews

Verified Purchase
i purchased this for installation on a 96 suburban. i use this vehicle as a member of the local volunteer fire department and police reserves. My hope was that this would allow me to run my emergency led lights and radio equipment on a scene without the need to leave the engine running. It works perfectly. With the fire radio on and receiving, led strobes front and rear and the headlights and hazard signals on the system shut the power down at 1hr 15min. a quick flip of the head light switch and the truck started up just fine. i was a bit concerned if it would work for this purpose but it has performed perfectly.

installation can be a little tricky if you have short or tight battery cables but there is nothing "hard" about the install. i was installed in testing in less than 15min.

this product is great. i will be adding one to my daily driver as well.
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Verified Purchase
Update - Sept 2012 -- The Battery Protector - protected my battery

Wife tried to open up car, no power, she opened trunk with key, that put current to the battery protector, that put battery back on line, opened car, car started, worked like a champ.
This car has a tendency to not shut off a relay, somewhere in car, the battery protector worked, money well spent.
------------------------------------------

Installed item on car, so far working as advertised.
Have not had a problem with a battery drain yet, so can not say that item has protected the battery yet.
However I am sure it will, this car likes to surprise me every now and again.
Battery on this car is in trunk, and space is limited, was able to make it fit, in my case the cable being a few inches longer would have helped, but it is OK.
Seems to be quality product.
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Works great. I have had one for a couple of years. I have some kind of slow battery drain. It has always worked. Disconnect if you have to jump the battery.
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Verified Purchase
I couldn't believe our 2007 Honda van didn't turn off it's own head lights or interior lights!! And Honda wouldn't even sell us an upgrade module to fix this! So for 5 years, I've had to jump start, charge, and replace batteries in this thing CONSTANTLY!! I was so frustrated.... Then a friend told me about this device on Thursday... I ordered it that same day from BatteryMart (thru Amazon). The order quoted delivery in about a week.... It showed up on my door 2 days later, SATURDAY! I installed it in about 10 minutes, and immediately tested it. It worked perfectly!!!! No more surprise dead battery in the morning! THANK YOU BATTERYMART!!!!!!!
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I'm telling you... I haven't replaced a battery in 10 years... This product does not enhance the battery, it saves it! 1 dead battery = 1/2 life left (if the battery is new) BUY THIS! I have never had to sit there with a dead battery and think "AAA" or I wonder who has jumper cables" or "What am I gonna do?" While your sitting in a cold, empty parking lot waiting for help... With this, you simply hit the brake pedal or swith on the interior light and Instantly, you have power! I'm telling you... It's amazing! I first saw it in a Galls magizine (equipment for Emergancy Services), I tried it and man!!!!! I paid $100 for each of my two vehicals and it's saved me about 20 batteries... (not cause I leave stuff on, because of non- use)... Use it once and you saved your time, your saftey and YOUR MONEY!!!!!!!
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I have owned this little device for a year now and I cannot tell you how much I appreciate having it on my boat when I am sitting at a cove all day lblasting my stereo and drinking beer. I have an 18 ft. ski boat and because of the design, I am only able to have one battery onboard. So i got the biggest battery that I could fit and install the Priority Start to it. During the whole entire summer I was never left strained because of a dead battery. During 2 occasions the Priority Start shut off my electronics and allowed me to start up my boat right up. If you cannot have a dual battery system and want a piece of mind on the lake, buy this product. I know several anglers that swear but these things also.
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Verified Purchase
BMW X5. Installation had to go rear, right near battery, which meant mounting on spare tire wheel well and then buying a new positive cable to stretch from the battery to the Priority Start. Perhaps on cars with battery in front, not such a big deal installing.

Priority Start as disconnect battery only once I know of and that when car sat for an entire week.

Certainly rugged.

Recommend if you can tackle an installation job that might mean drill, cable, etc.
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Verified Purchase
The ProMax works great. I have not had to jump start the car or charge the battery once. It was easy to install.
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