The Wagan 2177 cigarette lighter adapter AA battery charger charges 2 AA or AAA rechargeable batteries from your cars cigarette lighter.  Also works perfect with Sunlinq solar panels to charge AA and AAA batteries through the cigarette lighter adapter. 

Features:

• Works great with Solar Panels to charge your AA and AAA batteries.
• LED charging indicator
• LED flashing while charging non-rechargeable or bad batteries
• Reverse polarity protection
• Fast charging time: 2.5 hours
• Adjustable tab for adapting to charging AA or AAA batteries
• Batteries not included