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This item: theeasyhomelife 4 X Pack Dummy Battery AAA 3a Size Placeholder Cylinder Conduct Conductor Electric Current False Reduce Voltage Not Real Batteries Spacer
$8.99$8.99($2.25/Count)
Get it as soon as Sunday, Mar 31
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Sold by Etsfmoa Direct and ships from Amazon Fulfillment.
theeasyhomelife 4 X Pack Dummy Battery AAA 3a Size Placeholder Cylinder Conduct Conductor Electric Current False Reduce Voltage Not Real Batteries Spacer
theeasyhomelife 4 X Pack Dummy Battery AAA 3a Size Placeholder Cylinder Conduct Conductor Electric Current False Reduce Voltage Not Real Batteries Spacer
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theeasyhomelife 4 X Pack Dummy Battery AAA 3a Size Placeholder Cylinder Conduct Conductor Electric Current False Reduce Voltage Not Real Batteries Spacer
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.
These are awesome - very well made, especially at this price. These blanks are exactly the size of AAAs and 10440s, fit in the same storage case, and when used add no voltage or amperage. A 10440+any number of these is equal to just the 10440. Two AAAs+any number of these is equal to just the two AAAs. Fantastic product.
Perfect "batteries" to take the place of same sized actual batteries to enable you to use Li-Ion and Li-FePo4 replacements. Many remotes and other devices run on about 3 volts and are set up to use 2 non-rechargeable batteries of 1.5 volts apiece in series to supply the 3 volts. Li-Ion and Li-FePo4 batteries are slightly more than 3 volts for a SINGLE battery. Thus, one Li-Ion or Li-FePo4 battery will easily power a device that is set up to use 2 non-rechargeable batteries. But what do you do about the other slot where a battery is supposed to go in your device??? You could run a jumper wire across and solder it... but that requires some real time and effort. Putting a dummy battery works just fine. If you understand the difference between batteries in "series" and "parallel" this should all make sense to you. If not, you might read up on it. But if your device uses 2 or 4 batteries and they are either put in end to end, or are alongside each other facing opposite directions, then they are probably wired in series and you can use a half and half mix of these and rechargeable Li-Ion or Li-FePo4 batteries to run it.
I use 2 of these in series with 2 10440 Li-ion cells in R/C cars like Radioshack X-Mods and Kyosho Mini-Z, which were designed to run on 4xAAA (alkaline or nimh). The voltage increase helps performance, and using only two cells (coupled with two of these dummy cells) allows me to balance the weight on the cars as well.
I bought these because I have several two AAA cell lights, and I wan to run them on 10440 Li-Ion rechargeables. I have tested with one light already, and it works great. Apparently the 4.2 volt Li-Ion is close enough to the 3 volts of the two AAA cells to not cause any problems. Caution: This is not recommended by any manufacturer that does not explicitly state that 4.2 volts is an acceptable input. Experiment at you own risk!
The dummy cells themselves are very well built. After examining them closely, all I can say is that they appear to be actual 10440 cells, just without any insides, and with a direct connection between the two ends. The positive end even has vent holes.
Just a warning to anyone needing these. They seemed perfect until I tried to insert them into my battery case. They are too long and would not fit. I measured a regular AAA battery and it is 44.1mm long. These are 44.6mm long so they are 0.5mm too long. They may fit in some battery compartments but not in any of mine. They are definitely overpriced for what they are but I needed them and paid the price.
Their attention to the quality of their service is amazing. They provided me with 4 AA dummy batteries as soon as they noticed that I received the wrong product. The batteries were of excellent quality. They allowed me to fashion a system replacing the batteries with a system powered by a plug-in adapter, without making any modifications to the unit. Their product and service were so good that I am going to propose an addition to their product line which I believe will prove to be useful to many customers.