Sleeves and spacers turn AA or AAA batteries into C- or D-cell

Keep a variety of devices charged and ready for use with Replacement 2/3 AAA NI-CD Batteries, 120mAh. Crafted with nickel-cadmium, they can last for up to 15 hours. They come in size AAA with 1.2V. These solar rechargeable batteries are durable and can be used in lights, RV appliances and much more. They come with four to a pack.

Alpine Corporation Replacement 2/3 AAA Ni-CD Batteries - 120mAh

Homemade Emergency Battery Adaptors/spacers - or What to Do With

Eurocard Connectors

Materials and Processes: EBL D size washers are made of high quality non-toxic ABS plastic, and durable materials extend battery life Safe and

EBL D Size Battery Adapters, AA to D Size Battery Spacer Converter Case Use with Rechargeable AA Battery Cells - 4 Pack

How to convert AA or AAA battery into C or D type battery

EBL C Size Battery Adapters, AA to C Size Battery

Squeezing The Juice Out Of Some AA Batteries

Battery Eliminator - AAA Wired / Active Cell - fake AAA battery

Adapters

8 Slot LED Battery Charger Suitable for AA/AAA C / D Rechargeable

AA to C Adapter

Sleeves & Spacers - OVEREADY

Is there a way to use AAA batteries temporarily where AA batteries

Cells are a plastic adapter with dummy core. Cores can also be removed and AA cells can be installed.These are Dummy cell or adapter only NO batteries

D cell, C cell, AA cell, Dummy battery spacer, Adapter, converter.

AA and AAA On/Off Battery Holders - Keystone