Amazon.com: Synergy Digital 2-Way Radio Battery, Compatible with Motorola KEBT-650 2-Way Radio Battery Combo-Pack includes: 2 x SD2W-H1004 Batteries : Electronics
BATTERY FOR MOTOROLA DTR550 - 3.6V / 1880 mAh / 6.8 Wh / Li-Ion
PolarCell Battery for Motorola C330 with 800mAh - buy now!
MOTOROLA CLS Replacement Lithium-Ion Battery PMNN4497 - The Home Depot
Tacoma Screw Products | Motorola PMNN4434 3.6V Li-Ion Battery for Two-Way Radio
Motorola 53964 High Capacity Battery is compatible with DTR410 / DTR550 Digital license free business radios. Makes a great a spare or replacement battery.