Amazon.com: DURNERGY 12Pcs 2/3AA Size Batteries NIMH Rechargeable Battery 1.2V 650mah Button-Top Battery (0.59 * 1.18 inch, 2/3AA, Shorter Than AA and AAA) : Health & Household
Amazon.com: PKELL NIMH 2/3AAA Battery 1.2V 400mAh Rechargeable Battery Button Top (5pcs)(They are not AAA Size Batteries) : Health & Household
10pcs 2/3 Aaa Battery 400mah 1.2v Nimh 2 3 Aaa Rechargeable Batteries Flat Top For Solar Light Toys - Rechargeable Batteries - AliExpress
Amazon.com: PKCELL 1.2v 400mah 2/3AAA NiMH Rechargeable Battery with Button Top (20)(Not Full Sized AAA Batteries) : Health & Household
Amazon.com: ULTRALAST ULNMH413AAASL 1/3AAA Solar Rechargeable Battery - NIMH 1.2V 150mAh, Replacement Small Batteries for Outdoor Garden Solar Light Fixtures - Recharge Up to 1000 Times, No Leak Design - 4-Pack : Health & Household
Amazon.com: (10-Pack) 1/3AAA 1.2V 150mAh Ni-MH Battery (Button Top) Replacement for Solar Lights Battery, Outdoor Solar Garden Art Light Battery, 1/3AAA-150NM-NT, GP-17AAAH, Sanyo N-50AAA, GP 1/3AAA-170NM : Health & Household