BlueROV-3: Fathom-S Tether Interface Board Set and Batteries

Fathom-S Tether Interface Board Set is for connecting the fathom and camera chip.

https://www.bluerobotics.com/store/electronics/fathom-s-r1/

 

Finished this step:

Searched the type of the battery.

Ask on the forum:

Is the LiPO batteries safe for BlueROV? If the battery is put into the water tight enclosure, will it be damaged by the vapor inside the enclosure?

I heard that LiPO batteries are combustible and are easy to catch on fire. So do I need to use NiMH batteries instead?

Thanks for any answer.

Answer 1:

Here’s a safety guide to using LiPO batteries, well worth reading:  https://www.horizonhobby.com/pdf/EFL-LiPoSafetyWarnings.pdf

Fromwhat I’ve read (and I’ve not had this happen to me) the greatest risks of starting a fire with LiPO batteries is during charging and if there is a shortin the wiring.  If you use a proper LiPO battery charger, don’t over-charge (charging for too long) and don’t charge too quickly (set the charger for too many Amps) you’re not likely to ever have a problem.

Yes, LiFePo4 and NiMH batteries offer a greater level of safety.

Ask on the forum:

I want to use a NiMH battery, but for days I have not found any proper one. Some NiMH batteries have the unsuitable voltage, and the other NiMH batteries have the unsuitable ports.

So is there a specific type that is suitable for BlueROV(six T-200 thrusters)? A link will be better.

Answer 2:

I’ve been buying all my batteries from Hobby King.  An alternative to NiMH isLiFePo4, if you can afford them.  They are a little bit bigger and considerably more expensive than LiPO, but worth considering

http://www.hobbyking.com/hobbyking/store/__218__85__Batteries_Accessories-LiFePo4.html

Answer 3:

Imho is the best alternative instead of Lipo cells.

SanyoNCR18650GA 3500mAh – 10A

Ok, you have to configure it to your needs but since they can handle up to 10A I get more capacity at almost similar weight. I even use it in my UAV and love it. As well they can be charged with a standard Lipo charger and are far less dangerous.