It is used to cover and test the electrolyte density of a battery. Sufficient solution must be present in the battery cell for the float level to rise. Fast and accurate battery state testing. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
eBay
9.6v 700mah NI-CD Rechargeable Battery For Rc toys Cars Tanks Robots Gun NICD Battery AA 700mah 9.6v Battery Pack with USB cable
Aliexpress UK
Battery Load Tester: This floating ball battery tester features professional-grade construction and glass housing for durability; Car battery cell tester includes a durable rubber bulb and a flexible tip for accessing hard-to-reach cells.
eBay
TERANTY 3S LiPo Battery RC Battery 11.1V 1500mAh 1800mAh 2800mAh 45C Replacement Battery for RC Car Airplane Helicopter Boat
Aliexpress UK
The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. Material:Plastic+Glass+Rubber.
eBay
2--10PCS CR1632 Battery 3V Lithium Coin Cell High Capacity Long Lasting For Car Key Fob Remote Starter Button Batteries
Aliexpress UK
It is used to cover and test the electrolyte density of a battery. Sufficient solution must be present in the battery cell for the float level to rise. Fast and accurate battery state testing. Simple and easy to use.
eBay
1PCS/LOT CR2412 2412 Button Battery Coin Cell 3V Lithium Battery For Car Key.
Aliexpress UK
Endee Heavy Duty Battery Hydrometer Set Classic Cars Rare Item Antique. Looks all good except for some plastic gone brittle as can be seen in the last few pictures. Please check pictures for better idea or before buying. Collection welcome if collecting cash on collection if possible. Check out my other items. Thanks for looking.
eBay
3V CR1620 Panasonic battery button battery suitable for watches, car audio speakers, scales, shavers DL1620 ithium cell
Aliexpress UK
The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
eBay
Lancol Micro 500 12V Car Battery Tester 40-3000 CCA Lithium Battery Test Lead Acid Battery Analyzer LED Display with QR Code
Aliexpress UK
1 Tester. First, remove the filler cap from the battery. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
eBay
18650 Sodium Battery 3V 1500mAh SIB Rechargeable Cell 3000+Cycles NA-ion Batteries for Energy Storage E-Bike Scooter Toy Cars
Aliexpress UK
Accuracy: High-precision, easy-to-read pointer scale. Durability: Made of high-quality plastic and rubber materials, the antifreeze tester easily tests the freezing and boiling points of coolants in aqueous solutions; the large rubber bulb and tubing easily draw into a small plastic container.
eBay
7.4V 1400mAh 14500 lithium-ion battery 7.4V electric toy battery water bullet gun RC car truck boat toy drone accessory battery
Aliexpress UK