This is our recommended direct replacement for the Samsung 30Q

Battery Specs:

• Capacity - 3000mAh (3.0 Ah)
• Maximum Continuous Discharge - 20A
• Nominal Voltage - 3.6V/3.7V
• Fully Charged Voltage - 4.2V
• Cell Size - 18650 (18mm x 65mm)
• Terminal - Flat-Top
• Protection - Unprotected