MaxLLTo&trade; 2A DC Car Power Adapter Charger Cord For Sirius Stratus SV4 TK1 SV5 TK1 XM Radio 2A DC Car Power Adapter Charger Cord For Sirius Stratus SV4 TK1 SV5 TK1 XM Radio This charger connects your XM radio/dock/cradle to vehicle lighter power jack for power charging. Input: 12v - 24v. Output: 5V, 2000mA max. ( fit current 2000mA and below ) With IC circuit inside and LED light indicator for preventing overcharging and for short circuit protection. Compact design: light in weight, about 3 ounces. Package includes: 1 unit of car charger.