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Apex RC Products 2 Pack Lipo Battery Voltage Checker Alarm LED 1-8 Cell 1655

4.6 4.6 out of 5 stars 647 ratings
$9.99
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Purchase options and add-ons

Brand Apex RC Products
Power Source Battery Powered
Style Handheld
Color Black
Item Weight 0.05 Pounds

About this item

  • Package Contains 2 Voltage Checkers
  • Voltage Checker & Low Voltage Alarm All In One
  • Works on 1-8 Cell Lipo Batteries with JST-XH Balance Lead
  • Extra Loud Alarm!
  • Reads Individual Cell Voltage & Total Pack Voltage

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Apex RC Products 2 Pack Lipo Battery Voltage Checker Alarm LED 1-8 Cell 1655

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Product Description

Apex RC Products is a company of radio control hobby enthusiasts that creates and carries products we use ourselves. All of our products are high quality at a great value.

This checker will work on almost any 1-8S lipo battery. It reads individual cell voltages, and whole pack voltage.

There is also a low voltage alarm that will sound when the pack gets too low. The alarm voltage can be set by pressing the button on top of the unit. The voltage the alarm will sound is adjustable between individual cell voltages of 2.7v and 3.8v in .1v increments (3.3v is the default).

It can be used in the model as an alarm, or on the bench as a voltage checker. A very handy tool to help prevent the over discharging of lipo batteries.

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Customer reviews

4.6 out of 5 stars
4.6 out of 5
647 global ratings

Customers say

Customers like the performance, quality and value of the electric circuit testing device. They mention that it works well, is handy and comes in handy while out bashing or racing. They appreciate the ease of set up saying that the instructions are attached to each checker. Opinions are mixed on the alarm.

AI-generated from the text of customer reviews

48 customers mention44 positive4 negative

Customers are satisfied with the performance of the battery monitor. They mention it works well, it saves all their lipos, and it's accurate.

"...If your cell voltage comes back up, the beeping stops. Works awesome...." Read more

"Works well to monitor total and individual cells while RC is in use. I’ve used it in buggies,boats,and planes...." Read more

"...its small and works great. only issue i have had is cant get the beeper turned off, it is quit loud when you first plug it in. then it is quite...." Read more

"This little alarm works incredibly well. It is easy to set the desired voltage and once a cell gets to that voltage, the alarm is LOUD...." Read more

32 customers mention29 positive3 negative

Customers are satisfied with the quality of the electric circuit testing device. They mention that it is very handy for a quick check of their lipo batteries, and a great tool to have. They also say that it comes in handy while out bashing or racing, and perfect for keeping an eye on their voltage. Customers also say the voltage alarm is great to have, especially for boats and planes.

"...These testers seem as if they are very well made, but again, I know little about this type of product...." Read more

"...I’ve used it in buggies,boats,and planes. Voltage Alarm is great to have especially for boats and planes...." Read more

"Perfect for keeping an eye an your lipo's voltage...." Read more

"This is a combination device, it can read the cell voltage of lipo batteries, the final reading showing all combined cell is the most accurate, the..." Read more

14 customers mention14 positive0 negative

Customers appreciate the value of the electric circuit testing device. They mention it's cheap insurance for battery power level and a voltage warning buzzer.

"...I'm hard of hearing and I can hear it in my rc car. Good price especially for 2. Nice for peace of mind." Read more

"...The pin set are spaced for larger connectorsAre they worth the price? Well...yeah, I think so. Happy flying." Read more

"...The are inexpensive so I buy them often and hand them out to my friends at the flying club." Read more

"...Quite inexpensive, so plan to buy more than you need, keep the best, and throw away the duds. Weighs 8.35 grams, less than two nickels...." Read more

10 customers mention10 positive0 negative

Customers find the electric circuit testing device easy to set up. They mention that the instructions are attached to each checker so they can't forget how to configure it. They also say that it informs them when they need to land due to battery power.

"Easy to set up and use. Nice loud alarm in it. I'm hard of hearing and I can hear it in my rc car. Good price especially for 2...." Read more

"These little jewels are on every plane I fly. Easy to set, they inform me when I need to land due to battery power level...." Read more

"This little alarm works incredibly well. It is easy to set the desired voltage and once a cell gets to that voltage, the alarm is LOUD...." Read more

"...I'm kinda new to the Lipo stuff and these are simple to use. I like the big display, loud alarm and simple alarm setting. Works great!!!" Read more

7 customers mention7 positive0 negative

Customers like the portability of the electric circuit testing device. They mention that it's smaller than other battery checkers, handy, and fits in the storage box.

"...I love them because they and smaller than some other battery checkers...." Read more

"this little guy is a must have for anybody running lipo batteries. its small and works great...." Read more

"...The alarm is loud enough to hear 10 ft. away. They are small and lightweight which would make them useful to monitor battery when a drone was in..." Read more

"I like the portability, versatility, and convenience of these Lipo battery voltage checkers. A real bargain!" Read more

32 customers mention22 positive10 negative

Customers are mixed about the alarm. Some mention it's well built, and the alarm is loud enough to hear from very far away. However, others say that the sound is low, and it doesn't stop beeping if the voltage drops.

"Easy to set up and use. Nice loud alarm in it. I'm hard of hearing and I can hear it in my rc car. Good price especially for 2...." Read more

"...] Great product, the LEDs are very bright and the low voltage alarm is LOUD!..." Read more

"Accuracy is fair at best on a 4s lipo, but terrible on a 6s. Alarm sound is low on one of the two...." Read more

"...Now I don't over discharge my batteries. The low volt alarm is plenty loud." Read more

Best accessorie ever
5 Stars
Best accessorie ever
This is a must have item when flying. I get more flying time because I know exactly when I need to land. Instead of guessing. Love it!!
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Top reviews from the United States

John W.
5.0 out of 5 stars Works great.
Reviewed in the United States on February 19, 2024
Verified Purchase
Easy to set up and use. Nice loud alarm in it. I'm hard of hearing and I can hear it in my rc car. Good price especially for 2. Nice for peace of mind.
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The Belds
5.0 out of 5 stars Works great, no false alarms
Reviewed in the United States on June 2, 2022
Verified Purchase
This is a great tool for knowing when you’re li-po battery voltage is getting low. The alarm does NOT stay on if your voltage dips below the set point momentarily. If your cell voltage comes back up, the beeping stops. Works awesome. I’ve got cars that go into low voltage cutoff way too early so I put the ESC into NiMh mode and use one of these instead. Just ziptie it or use double sided tape to fasten to your chassis and plug in your balance connector to the meter. Set your alarm to 3.4v and you’ll enjoy much more runtime without risking damage to your batteries. So worth the $10 for 2 of these. I’m ordering another pair.
4 people found this helpful
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Ushan_DeLucca
4.0 out of 5 stars Great product, but needs work
Reviewed in the United States on August 18, 2016
Verified Purchase
The media could not be loaded.
 Great product, the LEDs are very bright and the low voltage alarm is LOUD! Only problem is in my pack I received, the two read different voltage with the same battery. Checking a fully charged 7.4 v 2000 mah lipo one reads 7.85 volts and the other reads 7.79 v. I'm not sure which one is correct untill I go get a multi meter

UPDATE- just got a multi meter and the one that was reading 7.4v was off by a lot.wondering if seller might replace the faulty one, as i cant use it accurately
3 people found this helpful
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Toro22
5.0 out of 5 stars Fantastic product
Reviewed in the United States on March 31, 2024
Verified Purchase
I run these with my RCs. Now I don't over discharge my batteries. The low volt alarm is plenty loud.
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C. Stewart
5.0 out of 5 stars Read on
Reviewed in the United States on December 30, 2020
Verified Purchase
First-off, I know little about this type of item.
I purchased 2 of these and big surprise, they both work. These testers seem as if they are very well made, but again, I know little about this type of product. They have a heavy/solid well built feel, and the alarm is quite loud. I have not tried this yet, but the plan was installing one of these testors during flight in hopes of hearing the low battery alarm. As for how they work, I have tested several different types of batteries and the only complaint is that these do not work well when testing the single cell batteries that have smaller connectors. The pin set are spaced for larger connectors
Are they worth the price? Well...yeah, I think so. Happy flying.
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2Armor
5.0 out of 5 stars Great device for Lipo batteries
Reviewed in the United States on September 13, 2020
Verified Purchase
Works well to monitor total and individual cells while RC is in use. I’ve used it in buggies,boats,and planes. Voltage Alarm is great to have especially for boats and planes. Can hear beepers a solid 100 yds plus away on boat or plane giving time to get back before cutoff. I set mine for 1.6 volts per cell particularly in aircraft without telemetry. Only issue I have is mostly on my 4s and 6s jets, the beeper sometimes goes off under full throttle climbs (inrush) as voltage temporarily drops below set value and stays on even though cell voltage returns higher after the inrush burst.
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Bobby Kimbrough
5.0 out of 5 stars Cheap insurance for battery power level.
Reviewed in the United States on July 10, 2023
Verified Purchase
These little jewels are on every plane I fly. Easy to set, they inform me when I need to land due to battery power level. The are inexpensive so I buy them often and hand them out to my friends at the flying club.
One person found this helpful
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William F. Nagle
3.0 out of 5 stars Voltage alarm
Reviewed in the United States on August 31, 2023
Verified Purchase
Accuracy is fair at best on a 4s lipo, but terrible on a 6s. Alarm sound is low on one of the two. Haven't checked if alarm shuts off once voltage sag comes back up.
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