How Does the FIFISH Complete a Tough Task Under the Ice? | FIFISH V6 Underwater Robot

No matter how tough the environment is, the FIFISH can answer the call. With the capability to operate in temperatures as low as -10 °C, the FIFISH V6 is equipped to handle a multitude of harsh and challenging physical conditions.
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[@user-gy6fi8vh1v]

Great video, many thanks! Can you, please, tell me how much time Fifish V6 will be able to work at very low temperatures (2-12 degrees Celsius, 6 degrees Celsius on average). We plan to work in coastal marine waters from boat at 10-20 meters depth, 1-2 knots speed, with episodic photo and video shooting and taking measurements with laser pointer. Going to use "Distance control" feature to keep constant distance from bottom.
Manufacturer advertises "run the underwater drone up to 3 knots for up to 4 hours on one single charge". I suspect for cold waters operating time and workload outlined above operating time will decrease to as little as 1 hour. Am I right on that?
Motors and Battery Maintenance Guide
by Qysea explains that operator needs to soak and clean
V6 with clean fresh water after
every dive. We can not do this cleaning on our small boat unfortunately. So we will have to return to land base station to clean V6 with fresh water. And only after this cleaning, as Qysea documentation explains, we can recharge battery.
This makes our survey very inefficient: 1 (?) hour ROV operation - run to land base station - clean - recharge - back to survey where we left - another 1 (?) hour ROV operation - ....
Can you, please, correct me I am wrong with all these assumptions. Are there any workarounds to increase survey productivity (ROV operation time per day).
Thanks!

[@QYSEA-FIFISH]

My friend, can you share your email address with me? we can send more details about it.

[@QYSEA-FIFISH]

we can provide onshore power charging technology to solve this issue. if you want to know more details, please don't hesitate to contact me by email at [e-mail].