Lithium Ion Polymer Battery - 3.7V 500mAh | TinyCircuits.com
3.7v Aa Li-ion Rechargeable Batteries 14500 Li Ion Battery 400mah 500mah 600mah 800mah - Buy 14500 Li Ion Battery,Soshine 14500,14500 Li-ion Battery 3.7v Product on Alibaba.com
Lithium Ion Rechargeable Battery - 18650 - 3200 mAh - 3.7 V – GuardDogSecurity
10 Pack Garberiel 18650 Battery 3.7V 3000mAh Rechargeable Batteries For Flashlight Headlamp etc. - Newegg.com