What could be the suitable power supply forCerulean Omniscan 450 FS Imaging Sonar, is LiPo battery 11.1 V, 5500 mAh 35C suitable for it?
Hi @Adel,
From the technical details on the product page, the Omniscan 450 requires a ≥10V power supply, with at least 10W of output capacity.
Assuming your battery’s discharge rating is trustworthy, 35\text{C} \times 5500\text{mAh} \times 11.1\text{V}, which works out to around 2100W of output capacity, which easily covers the required 10W, so no issues on that front.
A 3S (nominal 11.1V) LiPo battery is generally not recommended to be discharged below 3.3V/cell, which is 9.9V. If you’re a little conservative with your discharge amount (and carefully monitor the battery voltage) then you could use a 3S battery, but a 4S (or higher) battery may be easier to manage, because its minimum recommended discharge voltage would still be within the range of the required supply voltage of the sonar.
I’ve never tried it, but I would be very surprised if the Omniscan stopped working at 9.9V!
Fair enough. If the battery is dedicated to the sonar then that may be an acceptable risk, although if it is also powering motors and the like then there could be lower dips if/when the motors are rapidly engaged.