GARMIN ForeAthlete 225J I used this watch until about two years ago. Back then, the battery wouldn't die even after running for about 6 hours, but I haven't used it since, so I don't know how long it lasts now. The battery is a consumable item, so I cannot provide any guarantees. The band's strap broke, so I replaced it with a third-party one. When the watch doesn't respond well during charging, adjusting the connection point will allow it to charge. This is an old model, so it shows signs of use. There may be scratches and dirt that are not visible in the photos. Please purchase only if you are not concerned about these. Returns, refunds, and exchanges are not possible to prevent product substitution. Packaging is minimal and recycled. Additional Information: After a full charge, the power turned off after approximately 7 hours and 50 minutes of measurement. However, this was indoors, so the GPS was not active. This time is not guaranteed as it depends on the measurement conditions.