How long does the UHA-3 last on a battery charge?
Typical runtime is about 18 hours, but this depends somewhat on listening level and headphone impedance. back to the top How long does it take to charge the battery? On a typical high-power USB connection, the battery will charge from completely dead in about 3 hours. back to the top Is it OK to only partially charge/discharge the battery? Yes. In fact, Lithium-ion batteries tend to last longer when operated near full charge. In other words, you can leave the UHA-3 connected to USB continuously without degrading battery performance. When the battery voltage dips below a programmed threshold, the battery will automatically be recharged. back to the top How many charge/discharge cycles will I get from the battery? The Lithium-ion battery in the UHA-3 is rated for a lifetime of several hundred complete charge/discharge cycles. If you do not discharge the battery completely, this number will be higher. After several years of use, the battery may not hold as much charge as it did when it wa