18650 lithium ion battery pack 3.7V 2400mAh is high quality and safe
icr18650 3.7v 2600mah battery for Electronic Appliances - Alibaba.com
Akku 18650 3400mAh
4-Pack of ICR 18650 Blue Lithium-Ion Rechargeable Batteries - 3.7V 2600mAh | xUmp
Amazon.com: 1Pcs 18650 3.7v 4400mAh 1S2P Li ion Rechargeable Battery Pack with 2.0Pin JST-PH Connector 16.28Wh/4.4A, Blue, 6.6 x 1.8 cm (19.28Wh/4.4A) : Health & Household
Qixin Icr 18650 3.7V 1500mAh Li Ion Battery Cell 10c Power Tool Batteries - China 18650 Lithium Ion Battery, 18650 3.7V 1500mAh Li Ion Battery | Made-in-China.com