UpBright AC/DC Adapter Compatible with Dolphin SPF1010R SPF1212R SPF-1010R SPF-1212R 12V 12000mAh Lead Acid Battery WaveSync Dual 10" Portable Rechargeable Party Speaker Power Supply Cord Charger PSU - Dolphin SPF1010R 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 AC / DC Adapter Compatible with Dolphin Model SPF1010R SPF-1010R 12V 12000mAh 144Wh DC12V 12Ah 12 Volt 12000 mAh 12 Volts 12 Ah 12VDC Lead Acid Battery Pack WaveSync Dual 10" 10 Inch Loud Deep BASS 4100W Portable Rechargeable Party Speaker Class 2 Switching Power Supply Cord Cable PS Wall Home Charger Mains PSU Compatible with: Dolphin Model SPF1212R SPF-1212R 12V 12Ah 12000mAh 144Wh Lead-Acid Battery WaveSync Dual 12" 12 Inch Powerful Sound & BASS 5100W Portable Rechargeable Big Party Speaker Power Supply. ⚠️!!!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.