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When you buy a product containing lithium, its best to always keep an eye on it, This little batt checker will tell if each batt. is equally charged,what each volts is, and the cumulative voltage of the 2,3,or4 batts. with a red numeric display and a loud beeep.
Verified purchase: Yes | Condition: New
It works really well for such a cheap price. You can set a low voltage threshold, it comes set at 3.3V but I've changed mine to 3.5V. When one battery gets that low it will beep VERY LOUD.
Verified purchase: Yes | Condition: New
Does the job needed at a really inexpensive price. Boy is the 'on' alarm load when you connect to a battery. You certainly know you are connected.
Verified purchase: Yes | Condition: New
Smart little unit that provides a visual for current levels and and audible warning when the battery is low. Recommend.
Verified purchase: Yes | Condition: New
It functioned perfectly for a few days, but then failed to accurately display its information. Now of very limited use.
Verified purchase: Yes | Condition: New