DPV research
- Thread starter jsignaigo91
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A leak detector is on my DPV Wish List for the same reason I enjoy the leak detector on my camera housing - because I can establish negative pressure inside the hull long before I splash, then be pretty confident that I have no leaks BEFORE I splash.
Waiting until I see it starting to sink seems way inferior to checking seal integrity before getting in the water. If I have a slow leak and start driving as soon as I splash, I might not notice until it has taken on a fair bit of water. Being under way really tends to mask buoyancy issues until you stop.
Jon Nellis
Contributor
Yes, The Warp Core layers are UN38.3 tested in both configurations (4P2S & 8P1S) which is why they can legally fly on passenger aircraft and be shipped without full Class 9 Dangerous Goods declarations with the batteries inside the DPV, when the layers are electrically disconnected. Even the Genesis 2.2 and 3.2 can fly in passenger checked baggage with 18 layers of 95wh each inside and I have done just that before. PTB designs require the batteries to be removed for shipping or hand carried in carry-on baggage when traveling, as the wiring inside the DPV connects the packs, which puts them over the 100/160Wh limit. Per FAA and IATA regs, two or more batteries packs that are electrically connected are considered one battery for determining capacity.
Cheers,
Jon
Hi Jon, I don't see anything on your website that explains these two configurations.
Why are there two battery configurations?
Is the battery config something that the user could/would change between, or is it part of the build done at the factory and changing would mean sending it back for rewiring?
Jon Nellis
Contributor
Jona Silverstein
Contributor
There are others who have make vacuum testers for their DPVs and I know of 1 that has been done for the BT.
Currently I'm finishing up one for the Sierra, as DX no longer makes them and we like to perform vacuum tests after shaft seal replacements.
When I have time, I have plans to make one for the BT that in theory will be similar to the smart-slice in that you could take it diving. Or just one for bench testing...
Thanks, but I actually look at that and the Owner's Manual document before I posted.
I don't even see mention of 4P2S or 8P1S in either document.
I thought maybe one was the 2.1 core and one the 2.2 core(?), but then I thought it would be something like 8P2S and 8P1S. As you can tell, I'm not entirely up to speed on what those terms mean. I figured 4P2S meant the same number of cells as 8P1S, just arranged differently with respect to parallel versus serial. And, being the same number of cells implies that we're not talking about a 2.1 core versus a 2.2 core (which would have twice as many cells).
