Battery Voltage Alarm
Battery Voltage Alarm
Battery Voltage Alarm
Battery Voltage Alarm
Battery Voltage Alarm

Battery Voltage Alarm



This battery tester is a combination low voltage alarm and a battery capacity indicator. Making you aware of the working state of your battery anytime to prevent overcharging or over discharging. 

OPERATION Plug your balance lead into battery as specified on the back of the alarm. The LED display will show cycle through the current cell voltage. The battery monitor alarm will keep buzzing when the voltage is below the set value; Pre-set value is 3.3 V, and you can change and save the voltage settings through the black button between 2 black electric horns.

MATERIALS The battery indicator comes with a clear LED display, from which you can clearly read the value of battery cell voltages, total voltages, lowest cell voltage, and remaining battery capacity.

STYLE  Compact size makes this convenient to fit batteries into your tight spaces. 


Shipping & Returns


FREE ground shipping on any order $100 and up shipped to the contiguous United States.

Barra Airguns ships only to consumers that reside in the United States with a physical address (no PO boxes).  Please email for inquiries about international shipping. 

In-stock merchandise will normally arrive in 3-6 business days (AK & HI add 7 days). Holidays may delay shipping. Shipping charges depend on destination and item weight.

It is your responsibility to know the laws in your state, county, and city and to fully comply with them.   Barra Airguns does not authorize that you may legally purchase, possess, carry or utilize air rifles, air pistols, pellets, or any other items, which you may order from Barra Airguns or one of its websites. 



If you are not satisfied with the original condition and/or performance of the item(s) purchased from a website of Barra Airguns you may return the item within 30 days from ship date for a refund or replacement. To qualify for refund or replacement, items must be returned in their original packaging with all tags and stickers attached. Once we approve your request, return unused items, in the original box with all accessories, warranty cards, owner's manuals, etc. within 30 days for an exchange or refund. You will need to put your boxed item in a separate box to ship so that the packaging it stays in mint condition. We will charge a restocking fee for any damaged packaging. 

Ship returns to Barra Airguns via UPS, FedEx or USPS Priority Mail for tracking/confirmation purposes. Use this address: Barra Airguns. 650 US-412 Siloam Springs, AR 72761

Returns without the complete original packaging may not be accepted. 

Shipping and handling is non-refundable except in the case of defective merchandise shipped within the United States. Shipping for returned merchandise should be pre-paid. 

Please allow 2-4 weeks from the date we receive the return for credit or refund. We assume no liability for loss or damage of returned packages. We recommend you purchase insurance from your shipper. Returning merchandise nullifies your ability to take advantage of any promotions or rebates that may be associated with it. 


Customer Reviews

Based on 5 reviews
Thomas Butler
A Must Have for Lipo Batteries

This inexpensive battery voltage alarm is easy to use and a must have to get good battery life. It also shows the current state of charge of each battery cell. Five dollars these days hardly buys anything let alone an electronic device, making it, IMHO, quite a bargain.

Michael Hunter
Battery voltage alarm

Nice to know where battery voltage is at,if battery is good or not.Was just thinking about shooting today,now that weather has cleared up for now.Was thinking about 2 more speed loaders,2 more magazines.Would like to get another black friday deal,and maybe some free swag for doing surveys?maybe getting another charger?

William Johnson
Great air gun !!!

I have about 20 air guns . This has become my FAVORITE air gun.


Works great.

Bub Roe
Battery alarm

The battery alarm works great. I use mine more to check the battery than as an alarm. Good product!