Hi - I am looking for appropriate battery chemistry to be used in a LoRa tracking device for wild turtles. The turtles spend some time in the water and can dive to a depth of about 10m. Although the tracker is in a waterproof enclosure, I want to avoid a catastrophe such as an explosion if there is a water leak. I purchased several Li-SOCl2 (Lithium Thionyl Chloride) 14500 batteries for use this spring but recently was told that Li-SOCl2 is not safe to use if there is any chance of water exposure. Is this a valid concern and if it is can someone suggest appropriate battery chemistry for my use case? The output voltage must be between 3.6 and 5.5 V and capacity ~2000 mAh. Lighter (preferably < 40g) is better and it doesn’t need to be rechargeable.
Thanks in advance,