Fit Battery Model: C/D/Aa/Aaa Battery. Easy to Install: the Battery Holder Is Snap-in Design, No Screws Are Needed. Tough Material: Using Tough Material, High Strength, Good Toughness, Not Easy to Crack.
eBay
Original LSRC GT8 Drone Battery 3.7V 1300MAh Battery For GT8 RC Quadcopter Replacement Battery GT8 Accessory Parts
Aliexpress UK
Wide range of testing, including C, AA, AAA, D, N, 9V(6F22) batteries and 1.5V buttons. The upgraded battery tester can be used without the use of button batteries(if you receive the upgraded battery tester, you do not need to install the battery).
eBay
21700 Battery 4800mAh 3.7V Lithium Ion Battery Rechargeable Battery for Flashlight DIY Electric Scooter Solar Light（1-10pcs）
Aliexpress UK
A universal battery tester capable of testing most of the popular dry cell types under actual load conditions. Tests PP3 (9 V), AAA, AA, C, D, 4SR44 (6 V), 1.5 V button cells. Tests PP3 (9V), AAA, AA, C, D, 4SR44 (6V), 1.5V button cells.
eBay
100V-240V Portable Li-ion Battery Mini Compact Charger for Milwaukee 18V Lithium Battery Replacement for M18 18V Battery Charger
Aliexpress UK
Universal Button Battery Checker Tester AA AAA C D 9V. Checks power level of all 1.5V & 9V batteries. 9V: PP3, MN1604, 6F22, 006P. AAA,for HP16, MN2400, R03. Note:AAA battery not include. AA, HP7, MN1500, UM3.
eBay
Waterproof 12V Battery 40Ah 30Ah Rechargeable Battery 12v 18650 Lithium Batteries for Electric Sprayer Children's Car Stall Camp
Aliexpress UK
Energizer Alkaline Power have a great resistance to leakage .
eBay
VTET new 18650 lithium battery 3500mAh 3.7v 25A INR18650 MJ1 high-power electric tool battery 18650 rechargeable battery+charger
Aliexpress UK
Universal Battery Tester – Multi-Size Battery Checker (AA, AAA, C, D, 9V & Button Cell). Easy-to-Read Display: Clear color-coded indicator (Good / Weak / Poor). Check the indicator level on the display.
eBay
Hard Battery Organizer Storage Case, Battery Organizer Carrying Bag Holder Holds Batteries AA AAA C D - (only Box)
Aliexpress UK
With Wire 3W 10V 300mA. With Wire 1.2W 3V 400mA. With Wire 1W 6V 180mA. 3W 10V 300mA. With Wire 0.24W 2V 120mA. With Wire 1.9W 6V 320mA. 0.37W 3V 125mA. ● Material: epoxy resin + Conductive copper strip+ Solar cells + PCB base plate.
eBay
18650 Battery Storage Case Organizer Hard Battery Container Holder Case for Battery Storage Boxes
Aliexpress UK
Wide range of testing, including C, AA, AAA, D, N, 9V(6F22) batteries and 1.5V buttons. The upgraded battery tester can be used without the use of button batteries(if you receive the upgraded battery tester, you do not need to install the battery).
eBay
Battery Adapter Converter for Makita 18V Lithium Battery to for Bosch 18V Li-Ion Power Tool Accessories(NO Battery )
Aliexpress UK