The device in question is a Bluetooth 4.0 Battery Monitor that is resold under many brands, and which by itself would seem to do just what it is said to do, from monitoring a battery to running ...

Fuel isn’t exactly cheap where he lives, so he wanted a way to monitor his ... to a smart phone via a Bluetooth module. The whole circuit is powered from the boat battery using a DC adapter.

Usually, these units are monitors or analyzer or diagnostic system used as standalone instruments in a lab or as part of an OEM UPS, battery power supply, or other energy storage system. Portable / ...

Bluetooth trackers let you monitor the location of whatever they ... You can easily remove and replace the AirTag’s battery when it runs dry. It’s estimated to last about a year.

There's also a Bluetooth battery tracker available to monitor battery status on the user's phone. XS Power is a newer automotive battery brand, and one that's made its mark in the industry with ...

We recommend opting for a Bluetooth speaker with a battery life of no less than 10 hours. A growing number of the best Bluetooth speakers will even double as battery packs, providing extra charge ...

or a Bluetooth transmitter for your TV, we’ve tested them and have recommendations. Use this tiny, battery-powered Bluetooth receiver to pair wired headphones with a phone that lacks a headphone ...

While all the models here offer strong features and superb value for money, the best Bluetooth speaker overall is the Sonos Move 2. While hefty, it packs a battery that will last up to 24 hours ...

Executive Editor David Carnoy has been a leading member of CNET's Reviews team since 2000. He covers the gamut of gadgets and is a notable reviewer of mobile accessories and portable audio ...

The best Bluetooth speakers are a tech essential ... We evaluate these factors alongside battery life and value for money when we're testing to find the best options. For those seeking a rugged ...

The steepest and rarest discounts on Apple products, bestselling skin care, the most-wanted appliances and much more for ...