Amazon.com: Tyrone ER14250 Battery [ 1/2 AA Size ][ 10 Pack ][ LS 14250 3.6V 1200 mAh Lithium Non Rechargeable ], Batteries Compatible for Dog Watch Fence Collars and Some of Baby
Amazon.com: EBL Universal 18650 Battery Charger for 3.7V Lithium ion Rechargeable Batteries 26650 22650 18650 18490 18350 17670 17500 16340 (RCR123) 14500 and 1.2V Ni-MH Ni-CD Rechargeable C AA AAA Batteries : Electronics