Manufacturer | Alltrade Tools, LLC |
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Brand | Powerbuilt |
Model | Computer Memory Keeper |
Item Weight | 2.08 ounces |
Product Dimensions | 0.88 x 2.75 x 8.63 inches |
Country of Origin | China |
Item model number | 648539 |
Is Discontinued By Manufacturer | No |
Manufacturer Part Number | 648539 |
Special Features | Lightweight |
Voltage | 12 Volts |
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96% positive over last 12 months
Powerbuilt 648539 Computer Memory Keeper
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Return this item for free
Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
Learn more about free returns.- Go to your orders and start the return
- Select the return method
- Ship it!
Purchase options and add-ons
Brand | Powerbuilt |
Special Feature | Lightweight |
Voltage | 12 Volts |
Model Name | Computer Memory Keeper |
About this item
- For maintaining voltage continuity to engine computer, clock and radio memory when vehicle battery is disconnected
- Retains radio presets, ECM codes and learned procedures up to four hours
- Plugs into vehicle's cigarette lighter outlet
- Maintains voltage continuity to engine computer, clock and radio memory
- Retains radio presets, ECM codes and learned procedures up to four hours
- Plugs into vehicle’s cigarette lighter outlet
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Top Brand: Powerbuilt
Product Description
For maintaining voltage continuity to engine computer, clock and radio memory when vehicle battery is disconnected. Retains radio presets, ECM codes and learned procedures up to four hours. Plugs into vehicle's cigarette lighter outlet. Uses 9-volt battery (not included).
Product information
Technical Details
Additional Information
ASIN | B004BW9J1Y |
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Customer Reviews |
4.3 out of 5 stars |
Best Sellers Rank | #619 in Computer Memory |
Date First Available | November 5, 2010 |
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Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the ease of use, value, and settings of the internal memory. They mention that it's a great time-saving little gadget, and is the best idea for the best price. Customers also appreciate that all settings are retained. However, some customers have mixed opinions on performance.
AI-generated from the text of customer reviews
Customers like the value of the internal memory. They mention that it's a great idea for the best price, an inexpensive investment, and a good product for pro and DIY techs. They also appreciate the quality materials and workmanship.
"...So this was a very good, inexpensive, investment and I strongly recommend it (at least for older cars).As always, your mileage may vary." Read more
"...Works well, cost is very reasonable. Highly recommended." Read more
"...was impressed that this little tool actually works; and the price is quite reasonable. Five smiles..." Read more
"...the memory keeper, the battery connector broke making it useless for any future projects So, either do not disconnect the 9 volt battery from the..." Read more
Customers find the internal memory to be easy to use. They mention that it is a great time-saving little gadget, and a convenient tool to have where the battery plugs in. They also appreciate the compact design and the fact that it can save a lot of time resetting everything. Overall, customers are satisfied with the ease of use of the product.
"...No need to reset anything. This is the best $8 I ever spent on Amazon!" Read more
"Great tool. I used it on my 2005 4runner...." Read more
"Simple to use effective and if you haven't got your radio codes a must have battery backup device just, plug this in and this will have enough power..." Read more
"The design is really compact and handy, Its a handy device that can be kept anywhere in your car pending when you'll be needing it...." Read more
Customers like the settings of the internal memory. They say that all settings were retained, and redoing the settings was unnecessary after changing vehicles. They also mention that the radio settings were just fine, and the window settings were all remembered.
"...This little device worked like a champ and redoing the settings was unnecessary after changing both vehicle batteries...." Read more
"...Replaced the battery took about an hour and my radio settings were just fine...." Read more
"...After installing new car battery, radio presets were lost. 9v battery was down to 8.3 v. Maybe 2hr is too long a time...." Read more
"...I was very happy that I did not lose any radio settings or computer settings.Pros: Worked as advertised...." Read more
Customers are mixed about the performance of the internal memory. Some mention that it worked like a champ, saved settings when changing battery on car, and was a very good investment. Others say that it did not work at all in their vehicle.
"...So this was a very good, inexpensive, investment and I strongly recommend it (at least for older cars).As always, your mileage may vary." Read more
"Doesn't work on Toyota,Most likely not going to work on import makes . Will update if find out this work on certain make and model." Read more
"...Plugged this in (with a 9 volt battery) and it worked great!" Read more
"...This device has a diode built into it to prevent that.Works well, cost is very reasonable. Highly recommended." Read more
Customers are mixed about the quality of the internal memory. Some mention it's a great backup device, while others say that it failed to maintain memory settings and might not save all stored info.
"...It's light weight and stores away easily." Read more
"...Have better understanding of why some users report unit failed to maintain memory settings...." Read more
"Saved car memory when swapping batteries." Read more
"Great assist to maintain memory during battery change..." Read more
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Then I saw this Powerbuilt 648539 computer memory keeper, and when I saw the price, I figured, "why not?" I couldn't believe the low price and had initially wrongly assumed that it would be a piece of junk - but I thought I'd give it a try anyway - and I'm glad that I did!
Using just a 9V battery, I plugged it in - and then changed out my car battery. Everything was kept in check and I didn't lose anything - no combinations, nada. So this was a very good, inexpensive, investment and I strongly recommend it (at least for older cars).
As always, your mileage may vary.
Be sure to test the socket you're plugging this into first to make sure it's "live" BEFORE you disconnect the car battery; if not, just set your key (or "start" button) to the Accessory position, then plug the Memory Keeper in prior to disconnecting the battery.
Also, before I bought this, I had wondered why I needed it, and couldn't I just attach a 9 volt battery to the car battery cables? The reason you can't is that the car battery will "over-charge" the 9 Volt battery and possibly risk an exploding battery! This device has a diode built into it to prevent that.
Works well, cost is very reasonable. Highly recommended.
Don't waste your money. Thank god I had the foresight to go in and write down all 60+ of my settings beforehand.