Widely Compatible - Convert AA size battery to C size battery, compatible with all types of AA batteries. Economical Shell - Save cost on C batteries, this little adapter allows you to use a AA battery in any device that requires a regular C size battery.
eBay
For Microsoft Surface Pro X 8 7 6 5 4 3 Go Book to USB Type C PD Adapter Tablet Fast Charging Plug Converter Charger Adapter
Aliexpress UK
Can convert any size AA battery to a size C battery. Easy to use - just slide in the AA battery into the converter. Made from high quality, durable plastic, help AA batteries provide long power life.
eBay
4pcs AA To D Battery Box High Quality 3x AA To D Size Battery Adapter Converter Holder Switcher Case Box For Battery Storage
Aliexpress UK
Can convert any size AA battery to a size C battery. Easy to use - just slide in the AA battery into the converter. Made from high quality, durable plastic, help AA batteries provide long power life.
eBay
ORICO M2 SSD Enclosure NVMe NGFF 10Gbps PCIe M.2 SSD Case Portable USB C 3.2Gen2 Tool Free External Adapter with Metal Heat Sink
Aliexpress UK
✔️4x Powerlion AA to C Battery Adapters (Batteries not included). These high-quality adapters allow you to use standardAA batteries in place of C-size batteries, making them a cost-effective and convenient solution for household electronics, toys, flashlights, and more.
eBay
M.2 NVMe 2230 SSD Enclosure NVMe to USB Adapter 10Gbps USB 3.2 Gen2 USB C External Case Box for M2 2230 NVMe SN740/SN530/PM991a
Aliexpress UK
brand new and high quality Converted AA size battery to C size battery complicated, just the AA battery in the converter and it's the same as a C battery Perfect for electronics and emergency situations A gadget to keep close at hand, at home, at at the campsite, etc Battery not include Compatible With: all types of AA batteries Package Included: AA to C size battery adapter*2
eBay
ORICO Mini 2230 M.2 SSD Case NVMe Enclosure 10Gbps M.2 to USB Type C Transparent External Adapter NVMe Enclosure for PCIe SSD
Aliexpress UK
brand new and high quality Converted AA size battery to C size battery complicated, just the AA battery in the converter and it's the same as a C battery Perfect for electronics and emergency situations A gadget to keep close at hand, at home, at at the campsite, etc Battery not include Compatible With: all types of AA batteries Package Included: AA to C size battery adapter*2
eBay
Multi USB Type C to C 60W Charging Adapter Cable Kit USB C to Lighting Conversion Set USB A & Type C to Micro/Type C/Lighting
Aliexpress UK
AAA→AA/C: 1 AAA battery is converted to AA or C size (compatible with low power consumption devices). Modular structure: The adapter is embedded with a removable sleeve, and D/C/AA size switching is achieved by replacing the sleeve.
eBay
QGeeM USB C to HDMI Adapter 4K Cable, USB Type-C to HDMI Adapter Thunderbolt 3 4 Type C HDMI Adapter for Laptop MacBook Pro Air
Aliexpress UK
Quantity: 5pcs(Batteries not include). Product: Battery Converter Holder. Use For: AA to C Size Cell. Input Battery Type: AA. Whether large capacity or small capacity of the battery can easily put into.
eBay
Vention USB C to USB Adapter OTG Cable Type C to USB 3.0 2.0 Female Cable Adapter for MacBook Pro Xiaomi Mi 9 Type-C Adapter
Aliexpress UK