In Stock. Extech Thermal Camera Battery Li-ion Battery Fits Extech, Flir I7, I5 Infrared Camera, Flir 3.7v, 3400mah CS-EXT7XL $36.47 The quality and the performance of the products from Cameron Sino is literally amazing. Good quality is assured as the products are manufactured to a very high standard Its confusing we know, often due to certain data not being available this battery will fit models that we do not show in the current list. As this information comes to light we will... Add to cart