Wahoo has launched a new heart-rate monitor, the TRACKR, with a rechargeable battery offering a claimed 100 hours of active battery life.Heart-rate monitors, including Wahoo's existing TICKR, typically use a coin-cell battery which needs to be replaced once expired, but the TRACKR moves to a lithium-ion battery charged via a proprietary port on the rear of the pod.Wahoo says the TRACKR solves long-standing consumer, environmental, performance, and safety pain points associated with HRMs by eradicating the use of coin-cell batteries. Regardless of that, training with a heart-rate monitor remains a cost-effective and relatively simple way to use data to guide your riding, compared to a power meter (even if the latter offers more advanced metrics).The pod itself has an IPX7 waterproof rating, and offers ANT+ and Bluetooth connectivity across multiple devices, including bike computers and the usual array of popular cycling apps with HRM integration, such as Zwift and Strava.Wahoo says the TRACKR uses a new "non-invasive side closure". - Wahoo FitnessWahoo says you can connect up to three Bluetooth devices simultaneously.The pod measures 6.15cm x 3.05cm x 0.95cm and uses a redesigned chest strap with what Wahoo describes as a non-invasive side closure. The claimed weight for the pod and strap is 51g.The Wahoo TRACKR will cost 79.99 / $89.99 / 89.99 / CA$119.99 AU$149.95. Wahoo says it will be accompanied later this year by a newly-branded range of TRACKR accessories and sensors.