
The TK Electronics MR2200 Portable for Teachers Coaches typically requires 4-6 hours to fully charge its , according to the product manual. You'll know it's time to charge when the amplifier is on, and the LED appears dim RED. To charge, power off the voice amplifier, plug the power adapter into the charge socket on the amplifier, and then plug it into a power outlet with a voltage between 110v and 240v. The LED will flash between RED and GREEN while charging. A solid GREEN LED indicates a full charge. Charging time might vary depending on the voltage. To maximize battery life, it's best to charge the battery after it's completely drained. The battery is designed to last 2-4 years before needing replacement. For replacement batteries or additional support, contact TK Products, LLC.


