WirelessMike

http://line6.com/support/page/kb/_/live-sound/relay-digital-wireless/relay-g10-faq-r808: Q: How long does it take to charge the battery? A: On average, a transmitter with its battery in a discharged state has given the following results when tested: 15 minutes of charging gives at least 1 hour of run time 30 minutes of charging gives at least 2½ hours of run time 3½ hours of charging gives at least 8 hours of run time