The testo makes this spare battery for the testo 865s-872s thermal imager, to extend the operating time of the instruments and use this lithium-ion rechargeable battery as a second battery.
It is black in color and weighs just 55 g
This item is Lithium cell / battery product (or contains Lithium cells / batteries) which needs to be shipped by sea freight. There will be extension of lead time (around 90 days) for global stock.