Homebuilt ROVs Forum

I've decided to go the AC topside, DC ROV route. When I get everything set up, I'll post back regarding how it works. I'm going to try out the cheapest AC/DC powersupply I could find: http://www.SuntekStore.com/dc-12v-12-5a-150w-switching-power-supply-regulated-transformer-.html $20, free shipping, ...

Yes if you want the same ground connection as topside. No if u dont. if u use a metal frame on your ROV as ground. if you use this option be sure to switch off all power before the rov exits the ocean. then its grounded any more=) That's an interesting idea and I'm getting pretty interested in the ...

sorry mate's if this is a rookie qestion :? why not use AC 110 or 230? Only bad thing with AC as I see it is the power source topside. It's expensive to buy a inverter 12/24V DC to AC. But a cheep gasoline powered generator would to the trick. And a AC to DC power supply for the rov is easy, cheap ...

SoakedinVancouver wrote:Better arcing capabilities, 4 times the charge time, 4 times the expense...

I'm not sure I understand this. I would just use the house the bank on my boat (comprised of two 90amp deep cycle batteries) -- it's charged by the engine and shore power when at the dock.

Also be careful with the amp ratings on the step-up you posted. The step-down was 10A, but the step-up is only rated for 3A which is less than most single bilge pump motors pull under load. If you are running 3 pumps then 12A+ is not out of the question. I was wondering about this but sort of assum...

I'm still trying to figure out how I want to power the ROV I'll be building. I'm concerned about having batteries on board for a number of reasons. I also plan a 200' tether because my underwater camera already has a 200' cord, but I don't want to be dragging around a massive power cable. I'm wonder...

I'm planning to run my ROV with 2.5 amp thrusters (4) with onboard power. I've looked at a number of NiMH battery packs in the 6-10 Ah range, and they are fairly pricey (approx $180 - $250). I found a pack of 12 D NiMH batteries for $90 . I'm thinking about just putting 10 of those in a tube, fillin...