1 x AAA battery can replace AA battery to use. Small size, easy to carry.
eBay
5/10Pcs Battery Storage Battery Case Battery Holder Rack Holder Case Suitable for Makita/Bosch/dewalt/Milwaukee 18V Devices
Aliexpress UK
Item Type: AA Battery Case Holder. (Batteries are not included.). Usage Scenario: This battery case can fit 6 AA batteries, then equivalent to NP F970 batteries, suitable for LED video light panels, displays.
eBay
5PCS Holder Battery Storage Rack Wall Mount Electric Holder For Makita 18V BL1840 Li-ion Battery Bracket Fixing(NO Battery )
Aliexpress UK
The Battery Storage Box Case Holder is a practical solution for storing and organising AA, AAA, and 18650 batteries. Its design as a storager box and holder case makes it a convenient accessory for all your electronic devices.10 Slot Plastic Hard Container Case Battery Storage Box For AAA/AA/18650 Battery Organizer Accessories.
eBay
Nohon 1.5V Original Rechargeable Battery AA 3600mWh AAA1300mWh With Charging Case for Clock Video Radio Game Camera AA AAA
Aliexpress UK
Options format: Code, Battery Type and Holder Quantity, Connector Compatibility. 5 x Battery Holders. Note: batteries not included. C1208-1: 58mm length x wide 63mm x 30mm high. C1202-8: 52mm length x wide 24mm x 25mm high.
eBay
Battery Holder for Milwaukee 12V Battery Wall Mount Dock Holder Fit for 48-11-2401 48-11-2402 48-11-2410 48-11-2411 Battery
Aliexpress UK
For sale AA, 18650 and PP3, 9V battery storage cases. 1 piece of battery box (batteries not included). WHAT'S IN THE BOX?.
eBay
5 Pcs Battery Storage Battery Case Battery Holder Rack Holder Case Suitable for Makita/Bosch/dewalt/Milwaukee 18V Devices
Aliexpress UK
9V DC Connector. AA Battery Holder. Holds 10 x 1.5V AA Batteries. United Kingdom.
eBay
Battery Storage Battery Case Battery Holder Electric Power Tool Holder Bracket for Bosch 18V for Makita 18V Devices
Aliexpress UK
Are you looking for a battery conversion box switcher?. What more, this is a high power, lightweight battery conversion box switcher. Small item with great use, the battery buckle provides you an excellent performance.
eBay
AIPEKE 1.5V USB AA 4200mWh Lithium AAA and AA Rechargeable Batteries with 4-in-1 USB Cable for Flashlight Toys Camera
Aliexpress UK
Descriptions: The case can hold 3 x AA batteries, and provide 4.5V power for your device. Made of Plastic material, lightweight, convenient to carry. Incorporates screw fixing holes Perfect for Soldering /Connecting. Be used as a perfect external power source. Battery is not included here! Screws are not included here ! Note: Please do not separate, maintain, or refit the product.The wires are thin, and the structure of this product is only fit for very small current load, DO NOT connect it to a load that will cause large current, stop using this product if the wires are hot.
eBay
NI-CD AA Rechargeable Battery 1.2V 700mAh Rechargeable 500times AA Nickel Cadmium Children's Music Toy Accessories
Aliexpress UK