Battery Power Charger Adapter for Nokia Lumia 520 521 T-Mobile Lumia520 US Plug **AbleGrid Trademarked** We have the brand "ABLEGRID"!Brand new.In stock.Ship from CA. Package include:30 days Money Back Promised! 60 Days Free Exchange With Paid Return Label!360 Days Anytime Worry-Free Warranty!!Bid With Confidence!!! Nobody Beats Our Customer Services!!! Compatible with:Universal Wall Travel Charger for Cell Phone PDA Camera Li-ion Battery with USB Port Black,Mobile phones,Digital cameras,Mp3 Mp4 players, Hand held gaming devices, PDAs,Acer, Asus, Audiovox, BlackBerry, Casio, CECT, Dell, Dopod, Garmin, Handspring, Hitachi, HP, Compaq, HTC, i-mate, Kyocera, LG, MiTAC, Motorola, NEC, Nokia, O2 Xda, Palm, Panasonic, Pantech, Samsung, Sanyo, Sharp, Siemens, Sony Ericsson, T-Mobile Sidekick, Toshiba, UTStarcom Note: 1. Don not plug the charger into the wall outlet yet. 2. Align YIBOYUAN``s Connect pins with the contacts on your battery. 3. For batteries with more than 2 contact points, start with the two outer contacts(left most and right most contacts).4. Now slide your battery into YIBOYUAN``s pins.Make sure YIBOYUAN``s contact pins are touching the contacts on your battery. 5. "LED" light indicates good connection,you have setup the charger correctly for this battery.6. If the "LED" lights does not indicate good connection,slide to another battery connection.(not all batteries will work,this charges approx 90% all digital camera,cell phone and other msic batteries)&lt;br&gt; 7. Now plug the universal battery only charger into a wall outlet. 8. The Red light will light up when the battery being charged. If its not lighting its not charging! 9. The Blue LED light will indicate a fully charged battery.10.Totally dead batteries will not be seen or charged.