UltraFire 2600mAh 3.7V 18650 Li-ion Rechargeable Battery Without Prote
UltraFire 1800mAh 3.7V 18650 Li-ion Rechargeable Battery Without Prote
Amazon.com: 14 Slots 18650 Battery Case with Carabiner, Water-Resistant and Shockproof Battery Storage for 14 x 18650 Battery, 18650 Battery Organizer Box : Electronics