UpBright 15V AC/DC Adapter Compatible with NYNE B7 B8 Punch B6 NYNEB7 NYNEB8 NYNEPUNCH NYNEB6 Portable Bluetooth Media Player Speaker 7.4V 2600mAh Lithium-ion Battery 15VDC Power Supply Cord Charger - NYNE B7 B8 Power Supply

• World Wide Input Voltage 100-240VAC 50/60Hz OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection) Tested Units. In Great Working Condition. UpBright 30 days Refund. 24 Months Exchange. UpBright New Global 15V AC/DC Adapter Compatible with NYNE B7 B8 Punch B6 NYNEB7 NYNEB8 NYNEPUNCH NYNEB6 Portable Bluetooth Media Player Speaker 7.4V 2600mAh 7.4VDC 2.6Ah Lithium-ion Li-ion Liion Battery 15VDC 15.0V DC15V +15V 15 Volt 15 Volts 15 V 15 VDC Switching Power Supply Cord Cable PS Wall Home Charger Mains PSU ⚠️!!!Tips: Rechargeable batteries don't last forever, the average battery last 1 to 3 years. If the battery is old/dead, it will not accept a charge. But not charger's problem. If you're not sure whether battery or charger is dead or not. You must have a volt meter in order to tell whether or not a charger is working.