Cheap Battery for Siemens SL45 at Brightmobile.com with fast Shipping
Even though the 5510 was revolutionary, it technically wasn't the first phone with an MP3 player. The Siemens SL45 introduced this feature almost 4 months before, in August 2001! : r/vintagemobilephones
SL45 Solar 10W/15W/20W/25W/30W LED Street/Parking Lot Light (With Pole)
Streamlight Litebox SL-45 Bottom Battery Rubber Seal Lot of 2 | eBay