The item is a set of 4pcs battery adapter converter cases, which are specially used to connect three AA batteries together for replacing a large D battery. Can convert any size AA battery to a size D battery.
eBay
EVE 15Ah~314Ah 3.2V lifepo4 battery Cell DIY 12V 48V Home Energy Storage Battery Prismatic Phosphate Lithium Ion Batteries
Aliexpress UK
Hard Battery Organizer Storage Case: This battery organizer is widely compatible with various shapes of batteries, suitable for AA, AAA, C, D, 3V, 9V, batteries, and battery testers. Premium Durability: Made from lightweight yet highly sturdy EVA material, this case is splashproof and shock proof.
eBay
2-50pcs EVE 26V ICR 18650 Battery 2550mAh CDR 7.5A 3.6V Flat Top Battery Rechargeable Lithium-ion Cell For DIY Battery Pack
Aliexpress UK
The item is a set of 4pcs battery adapter converter cases, which are specially used to connect three AA batteries together for replacing a large D battery. Can convert any size AA battery to a size D battery.
eBay
Original Molicel P50B INR 21700 Battery 50A High Power Lithium-ion Battery 5000mAh 3.7V Rechargeable 21700 Battery Flat Top Cell
Aliexpress UK
Convert any AA battery to a D battery. Made of ABS, durable and solid. Load 3 AA batteries (maximum) for more capacity. Compatible With: All types of AA batteries. 5 x Battery Converter (Batteries are not included).
eBay
VariCore 26650A Li-ion Battery 3.7V 5000mA Rechargeable batteries Discharger 20A Power battery for flashlight E-tools battery
Aliexpress UK
This AA to D battery adapter connect three AA batteries together for replacing a large D battery. Option to use 1 AA, 2 AA or 3 AA for more capacity. Batteries are not included. Colour: White.
eBay
Original 18650 batterie 3,7V 4200mAh wiederaufladbare liion batterie für Led taschenlampe batery litio batterie + USB Ladegerät
Aliexpress UK
Available in red or black battery not included
eBay
EEMB LIR2050 Rechargeable Battery With Charger(optional) 3.7V 2050 Lithium Ion Battery Lithium Cell Coin Batteries
Aliexpress UK
Type Battery tray. Factory colour Black. Suitable for battery size D. Dim (L x W x H) 107 x 71 x 28 mm. Width 71mm.
eBay
LIR1620 Batteries 3.6V Rechargeable 1620 Battery Charging Replace CR1620 Button Cell Battery for Watch Toys Remote Controller
Aliexpress UK
Battery holder for 3 x D batteries moulded in black thermoplastic, suitable for a wide range of applications.
eBay
100% New Original 18650 Battery 3.7V 2000mAh 18650 Rechargeable Battery High-current for Flashlight Batteries for 18650 Battery
Aliexpress UK