Of the 13 countries I have sailed - Thailand/Malaysia was the worst for me. I have a 1m piece of pointed 15mm copper rod bolted to 12mm copper cable (used for 700v street power-lines) I hoist the rod with my spinnaker halyard to be 3 ft above the mast and throw the end of the wire into the sea with 10ft extra submerged. Any lightning hitting me Will hit the copper lightning rod and run straight down the straight wire cable (lightning doesn't like turning corners - so best you keep a straight path for it to follow.

Her husband explained things much better. I like that long cord, it's what I must have

Useful.i could have learned more if she'd explained the freezing department and fridge one

What do you use for a regulated power supply. Interested in buying one.

You are obviously a smart man..... I'm learning about lithium for my camper now, time to replace the lead acid battery. Only using one battery thinking about the lithium....My converter/charger is not for lithium..... 2013 camper....

Can’t see a link to the bank manager 😢

Good info, but too much blather. Respect your viewer's time, get right to the point! This 13 minute video should have been no more than 4 or 5 minutes. Try rehearsing/scripting/editing your comments before you record. Your channel will grow if your videos are short and to the point.

Here is my senario. I have 4 matching 12v 200ah battries. I just got a EG4 48v all in one inverter i plan to stack the 4 12v into a 48v. Ok heres the question. I was planning to buy the EG4 48v rack battry....id like to hook that 48v battry bank to it. Thoughts?

Clark, I enjoy you and your wife's videos very much. I'm not a boater, but I have a van that I've been trying to build an emergency a/c system for. Just something to blow cool air when it's really hot at night. My evaporator and condenser are all plumbed-in, but the system doesn't work very well. I've tried standard 110v window ac compressors and refrigerator compressors, as well as the little 12volt Danfoss type compressors. But they either draw too much power or are too under powered. I've been working on this thing for two years now, and can't get it to work. I think it all comes down to the right compressor. Can you recommend a one to try? Thanks very much. I'd appreciate any advice you have.

That is what we also use on boats what philippines ropes that are made with nylon are really strong we use different colors and how will the anchor and the boat how big the rope and chain

Love it guys! I'm retiring to my Roughwater 33 in Western Mexico in November and I plan to check my optima battery system and adding lithium batteries. I love your videos and I've been following AND learning for a few years now. Clark! You're my hero!😊

Beautiful watch. What is the name of your watch? I am trying to figure out what it will take to fund the purchase of a larger vessel at this point. I have not sailed for years. I did restore a 12 foot widgeon to start to build my sailing skills around Boston harbor. This will be a good winter project. Do you like St. Germaine liquor? I just made a bunch of it and I could send it to you if you feel comfortable with that. What books or internet resources do you recommend to start learning about wind power?

Hi Clark, my wife and I enjoy your videos! I have a Bristol 41.1 that we are moving to in December. I have the same engine, Yanmar 4JH5E, which has been great. Does the engine have anodes? I've tried researching online but haven't found a definitive answer. Keep the videos coming!

are the two diodes important on the shallco 300a that connect from the on and off terminals to the common terminal? the manual didn't clearly say how to turn the bi-stable relay off manually so I first wired the positive to the 86b+ terminal and the minus to the 85- common minus terminal through a momentary switch -- but this first blew up my 5A fuse, then my 10A fuse and then I tried without a fuse and it probably blew up the diode since I thought it just needed more current to actuate -- anyway the diodes look like they are shot but are they imporant? when I switched the negative/positive wires it actuates normally and I could turn the bi-stable relay off for finishing the installation

Why dont these car manufacturer just implemented this feature into the alternator. Just baffles me. This little featured could save the alter nator nd the lithium battery from degration prematirely.

How bout 18650 lifpo4 24v 16ah pack in series with lithium 24v pack icr18650 18ah series to make 48v 7s+7s

Clark - You may be right about the tariffs. In May I rebuilt the battery pack on my old electric lawnmower converting it from three 12 Volt 12 Ah SLA to three 12 Volt 12 Ah LIFEPO4 in the pack which cost $29 each so about $100 total with taxes, etc. Battery pack can now be carried with one hand and fully charged it provides three times the mowing capacity. The 36 Volt Lithium charger (really 43.8 volts) I went with charges the pack in about 1.5 hours which is nice too. BMS specs for the TCB Batteries are pretty good with hot and cold protection and allow for Pack Balancing even with up to 4 matching batteries in series (48 Volt pack). Today the New Stock TCB batteries in that size are almost $36 each for a price increase of $7 each since May so $108 plus taxes, etc instead of $87 plus taxes, etc which is still a good deal compared to buying a new SLA OEM Pack for around $300. The Lithium charger cost less than the OEM SLA charger which needed replacing anyways so that was also a win. BTW: Welcome back to Florida. Hopefully you didn't come home to much of a mold blossom to greet you. At least the rain we've been having might help you vet out any roof issues that might need attention before the next "BIG ONE". Best!

Looks like to me - you got it easy - lol !

"Mayday Relay" does not exist in the US??

Emily, thank you for the very informative video!

Legends! Great solution

Dear Clark! I want one too! Box of parts option 1, engineer too... but 3000$ ??

Instead of using a constant duty solenoid, does anyone make just a DPDT with centre off default, solenoid activated heavy current switch. or is that a bad idea

Clark, what's your opinion on mounting an fisherman's drum anchor on deck, one that spools up all the rode and chain.

Design your own battery.

I have bought 4 of the regular size 12v 100ah blue tooth batteries of this brand. All I have done so far is to charge them, run a discharge and recharge them. I have gotten from 105.73 Ah to 110Ah. So far so good. I will be setting them up in 48v configuration once I get a 48v inverter. I plan on buying more in the near future once I get a few more solar panels to keep the system charged. I like them so far.

Humn, take that watch off, don't make me come over there.

Thanks - as usual very helpful. You guys are great. Maybe consider doing a follow up cold temp test as the manual may be wrong? I would also like to know more about the issues with below zero temps and lithiums. I’m in Cape Town so cold is not an issue - but sometimes travel to the Kalahari desert where winter temps fall below zero. I would never have considered the problems this may cause.

Clark, I do not own a metal watch strap, so no worry about forgetting to take my watch off. I have a healthy fear of "Releasing the magic smoke", especially on me! Then again I'm a Mech. Eng.

Great content as usual. What is your evaluation of your battery chargers as I have just like it.

Thanks

Was the one you tested the Group 24 or Group 31 battery?

Another great review, love the way you do these. Almost did not recognise you. I have been running a couple of 12v 410Ah TimeUSB batteries on my boat, protected by one of your great devices. Unfortunately trying to get batteries of this size to fit the space, and delivery to Croatia, turned out to be a challenge, I initially tried Redodo, but they were out of stock with no indication of delivery time, and I needed to replace the old L-A ones which were virtually dead, so I could go sailing in May. So far they have been great, don't worry now about running out of power, and make full use of our inverter when cooking etc. We try to avoid using LPG on board. Like you I would love suppliers to stop using oversize containers.

So Siekon sent everyone free batteries 😮 to review. I'm not impressed 😢😢

Looks like a reasonable battery. It's too small for my RV but it might make a good battery for my trolling motor on my boat as I don't ice fish. Keep the good stuff coming.

Good info, I do wished that you did a cold test at 0. This to many in cold temps is so important as you said, so would having this battery at 0 and start to charge at 5 amps the BMS should shut off in a few minuets, that should not destroy the battery? Thanks!

Too bad you did not test the low temperature cut-off. I see batteries that claim low-T cut-off that don't, batteries that don't make any claim on low-T but actually do have it, and batteries that have typos in the specs. It would be easy to test. Also, I read that some manufactures (EVE, CATL, or LICHEN?) have claimed lower temp charging below 0C(maybe -5C?). It seems plausible as 0C is for water freezing and chemically LiFePO4 likely has a different phase change point. It would be a bit more challenging to test a below 0C cut-off but maybe with isopropyl in a freezer (some go to 0F) you could see the cut-off and see if the battery performs or dies. Could be an epic study! and lots of KZfaq views!

Great video, keep up the good work.

Marine How To recommends EPOCH batteries. That is all you need to know. The rest of this crap is just cheap cell, BMS and variable construction that has been proven. Testing like this only relates to the battery tested and the SAME battery next week can be better or worse. Kinda like Russian roulette.

Prowse has torn apart similar batteries, and the LTP is incorrectly programmed on the BMS. I wouldn't keep one of those on my bench to make a video, let alone test the charging on it 😂

Very valuable testing you are doing here :)

Oh you changed your publish date. Great video !

Hi Clark this is Gary on Moonlight lady we are presently in looper on and have a problem with our bank manager generation too. What acid dropped to 10 V and the lithium never kicked in. How should I troubleshoot this to resolve the problem. Thank you very much

Dude, you need to tuck your chest hair into your shirt. LOL. I know it is a windscreen of some sort.

I have a hybrid system, in my house. 2 sets of panels, 2 charge controllers , a flooded cell 6 pack and a pair of 200AH Renogy Lifepo. The panels point in slightly different directions, but all inputs go into a 2-breaker box, 1 breaker for each set. So, I jumped. a wire from the flooded battery panels to the other charge controller. The result is that while the lithium is charging, the lithium charge controller will show a quick drop in amps as the lead side gets a burst of amps until it hits 14.2, and then amps increase on the LI side and so on, acting like a PWM for the lead side, and having the benefit of larger input from all panels on the lithium side, bumping the 40 amp max limit more of the time than it otherwise would. Especially effective in overcast weather. It is experimental. Comments?

Your DIYs are great. Another DIY upgrade is to use a wireless remote winch control module for ATV Trucks and Jeeps. They cost under $20 on Amazon. I installed one back in 2016 which still works great. No foot switches needed or installed, but I do have a wired switch if needed.

Consider Japanese "+" drive screwdrivers. Not only do they fit perfectly with Japanese JIS screws, but they fit Western-style Phillips screws better than Phillips screwdrivers.

These batteries are on sale right now for 16 cents per Watt hour. Are they are good deal? Please comment if you get one and like it or don't. Let's share the knowlege. Amazon link: amzn.to/3KKVimK USE CODE SIEKON88 FOR 3% off until JULY 21, 2024 AT 11:59 PM PDT