Connecting shark shield to FF battery...

A quick update….

I sealed the questionable wires with liquid electrical tape and it seemed to be waterproof. I tested it yesterday on the water, and it’s still not working. At this point, I think the voltage difference is the most likely cause. So my next step will be to add a voltage regulator to my battery box to get it down from 13+ to 11.1v, as that’s what the battery pack was rated.

Stay tuned….

It looks to me like this voltage regulator will work:

https://www.amazon.com/gp/product/B07JZ2GQJF

There are 2 slightly different versions available. Does anybody know of any reason to choose one over the other?

I just picked that one because it had a digital readout...

I just picked that one because it had a digital readout...

It's highly rated and looks like it should work. I'm just confused as to why there are 2 different versions that seem to be almost the same:

DC 6-30V to 0.5-30V
and
DC 6-32V to 1.5-32V

The second one is slightly cheaper, so I'll get that one...

A quick update….

I sealed the questionable wires with liquid electrical tape and it seemed to be waterproof. I tested it yesterday on the water, and it’s still not working. At this point, I think the voltage difference is the most likely cause. So my next step will be to add a voltage regulator to my battery box to get it down from 13+ to 11.1v, as that’s what the battery pack was rated.

Stay tuned….

Bummer. Before your converter arrives, can't you test it by run down your battery to within the 3s Lipo range? I'm very surprise that the SS is so picky about the voltage. I will test out my version "B" by disconnecting the battery and run it from a 4s LifePo to see if behaves the same as yours.

If your old battery pack is still functional, you might want to connect it back to see if your SS functions again. It is possible that you somehow fried your SS during the upgrade.

Bummer. Before your converter arrives, can't you test it by run down your battery to within the 3s Lipo range? I'm very surprise that the SS is so picky about the voltage. I will test out my version "B" by disconnecting the battery and run it from a 4s LifePo to see if behaves the same as yours.

If your old battery pack is still functional, you might want to connect it back to see if your SS functions again. It is possible that you somehow fried your SS during the upgrade.

I have a LiFePO4 battery, and it's basically a constant voltage until it shuts down. I was going to try the batter that was in the SS, as it was capable of running it for a while, but have not yet figured out how to charge it...

I have a LiFePO4 battery, and it's basically a constant voltage until it shuts down. I was going to try the batter that was in the SS, as it was capable of running it for a while, but have not yet figured out how to charge it...

Your SS battery pack is 12.6v fully charged. It's not that difficult to get your 4s LifeP04 battery is running at 12.8v nominal. I don't think it'd be too difficult run it down to below 12.6v. If you were closer to Union City, I have many ways to charge your battery. You can even borrow my SS battery. In a crunch, if you can connect your SS pack to a 12v wall wart power supply, it will charge your battery to a usable voltage.

Got the voltage regulator yesterday and I set it at 11.1v, since that's what the SS battery pack had written on it. There's also an amp adjustment, but I don't understand how to set that--if anybody has suggestions, LMK.

I installed the voltage regulator inside my battery case, and hope to be able to test this new setup OTW on Friday.

If this doesn't work, the only other thing I can think of is that using the charge port for input is causing a problem. I can put that back the way it was and use a different method to feed the power, but I'm hoping that won't be necessary...

From the freedom 7 manual

Seems like a lot of amps.. I thought sharks can detect the smallest amount  of Electromagnetic

Fixed*

550 mAmps = 0.55 amps

Added a zero ur welcome

The input from the charger to the SS is .55 amp, but the SS is drawing less than that from from battery. If you work backward from a 2000mah battery, and I know the SS would operate for 8hrs or more, then it means the SS is drawing ~0.25 amp from the battery (but I know it's not drawing a constant amount). Also, looking at that PCM on the battery pack, you know it can't handle that much current. So, I think if you set 1 or 2 amp max on your Buck Converter output, that should be enough.

This is sounding like a broken record.

I tried it on Monday, and it didn't work. I took it all apart and disconnected the wires from the charging port, and added a new connector. Hopefully, I'll get a chance to try it on Friday--if so, I'll report back. But, I'm starting to think the SS is broken, although I'm not giving up just yet...

One quick question.

On the specs that SlackedTide posted, under "output current" it says "150A pulses (approximate)". I thought just a few amps was enough to kill a person, so can it really be generating 150A? I've touched it a few times, and it's unpleasant, but I survived...

This is sounding like a broken record.

I tried it on Monday, and it didn't work. I took it all apart and disconnected the wires from the charging port, and added a new connector. Hopefully, I'll get a chance to try it on Friday--if so, I'll report back. But, I'm starting to think the SS is broken, although I'm not giving up just yet...

Easy way to test it. Fill a 5 gallon bucket with water. Add salt and mix. You should be able to get the salinity up high enough for it to work.

I have done this in the past to test mine.