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 > Your search for posts made by 'phemens' found 156 matches.

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RE: Converted to Lithium-Ion be careful.

Thanks for the link, interesting point on reconditioning.
phemens 09/13/19 05:44pm Truck Campers
RE: Converted to Lithium-Ion be careful.

Sure, and getting up in the morning and putting on pants brings a risk of falling and breaking your neck. As with any other technology, risk will never be 0, but needs to be measured in context. 7 reports of battery packs over several 100,000 laptops. Bet that there were more issues with someone getting injured because they were physically hit by a laptop than that. I have LIFePO4 batteries in my 5er. Guess what, I also have 100's of pounds of LP in canisters. Funny how no one constantly brings that up...
phemens 09/13/19 11:27am Truck Campers
RE: Electrical Upgrade Made Easy

Nice! I did the same with lithium batteries and a Samlex unit. You'll be very happy with the performance no doubt.
phemens 09/06/19 11:51am Truck Campers
RE: 2 6v batters VS 2 12v

It might also depend on your use case. I initially started with a bank of 6v Trojan T-125's, but wasn't satisfied with the voltage drop on heavy inverter draw. I switched to Rolls-Surrette high capacity 12v (210AH) to help mitigate that issue for me.
phemens 09/04/19 07:51am Class A Motorhomes
RE: Bus Bars - 150A rated ok?

Woah - I don't plan to do each battery individually, not sure how that floated up... I have a full time job already ;) My batteries are all individually wired to the bus, where they take their charge (either from solar when camping or charger when at home), no paralleling, etc. That's why I was asking if there was any significant impact of having different wire gauge for the 5th battery.
phemens 08/29/19 10:38am Tech Issues
RE: Bus Bars - 150A rated ok?

the 600 amp bars seemed a little bit overkill - 4 of them would pay for another battery! So far I've not seen a draw over 230 amps on the inverter, so I think 250 should be fine.
phemens 08/28/19 04:03pm Tech Issues
RE: Bus Bars - 150A rated ok?

For amperage I can draw max 100 amps per battery, in parallel that gives me 500 amps theoretical. Max draw from the inverter is about 250 amps (excluding very short duration peak 6000 watts but I'll never reach that with any equipment I'm currently carrying).
phemens 08/28/19 12:31pm Tech Issues
RE: Bus Bars - 150A rated ok?

well, the fat cables are already sunk cost, and with Lithium the voltage isn't really a factor. I don't have any long wire runs, my longest cable is the one from the bus to the inverter and that's 2 feet (vs. 1.5 feet for each of the batteries). No business case there for me ;)
phemens 08/28/19 11:41am Tech Issues
RE: Bus Bars - 150A rated ok?

Interesting product. Unfortunately for us poor canucks the shipping cost exceeds the product cost.... https://skycraftsurplus.com/pub/media/catalog/product/cache/c9e0b0ef589f3508e5ba515cde53c5ff/20-awg-dlo-2-kv-black-blk-20-awg-rp5878_1.jpg height=500 width=500 DLO Diesel locomotive cable https://skycraftsurplus.com/20-awg-dlo-2-kv-black-blk-20-awg-rp5878.html It is the best quality cable I have ever used. Notice the multi sheathing. The outermost layer may be a much as 10-times tougher to cut or abrade than the stuff West Marine or Genuine Dealz, sell. The inner layers are water and gas-proof. Acid proof, chemical proof. I use RED shrink tubing to ID positive cables. DLO cable is black. The tin plating is three times as thick as what's on, Anchor Wire Rope stranding for best ampacity. And Skycraft sells it at 50% off. But 30' is the minimum purchase of 2/0 size 3/0 rated terminals highly recommended because 2/0 won't fit. Way too tight. Far and away better cable than simple welding cable which has sheathing that has no cut or abrasion resistance. Skycraft is in FL. The wire ships from a west coast warehouse.
phemens 08/28/19 10:49am Tech Issues
RE: Bus Bars - 150A rated ok?

Ordered 2x Blue Seas 250A 4 post (for distribution), and 2x Blue Seas 250A 6 post for batteries. No more weak links (putting aside the human factor ;)
phemens 08/28/19 10:43am Tech Issues
RE: Bus Bars - 150A rated ok?

Yes - all batteries separate to bus. If I can scrounge up the 2/0 I will, but I know I have some lengths of 4/0 readily available, and all the lugs, so if I can avoid buying I will.
phemens 08/28/19 10:02am Tech Issues
RE: Bus Bars - 150A rated ok?

I'm ok for the 5 in parallel, yes, mfg confirmed. I know only the inverter needs the 4/0, which it does. To clarify, my question is: in real-world situation, is there any significant impact in having one battery wired to the bus with 4/0 where the other 4 are all 2/0 (all wire lengths being equal, only variance is gauge) Ok, I will bite the bullet on the higher amperage bus bars
phemens 08/28/19 09:46am Tech Issues
Bus Bars - 150A rated ok?

Have 500AH battery (LIFePO4) and a 3000 watt Samlex inverter. Wiring is all going through bus bars. I made an order to get new ones, received Blue Seas 4 post rated at 150 amps. I thought I had ordered rated at 250 amp. Question is, do I really need to go to 250 amp (return and re-order) - what's my risk? Real world high draw use is occasional microwave, coffee maker, etc. Other question is, I originally had 4x100 AH batteries all wired with 00 gauge welding wire. To add the new 5th one (bought within a few months of the others), I have some spare 0000 wire to make the cable (all wiring from batteries to bus bar is same length), ok to use or do I really need to find some 00 to make everything uniform?
phemens 08/28/19 09:15am Tech Issues
RE: Traveling through Canada with Dogs

Good point on the dog food. We clipped out the label and ingredients list (making sure to show country of origin mfg) and taped it to the dog food containers that stay in the RV.
phemens 08/23/19 02:52pm RVing in Canada and Alaska
RE: Traveling through Canada with Dogs

When we cross into the US (and back), they may ask for vaccination papers. They may also ask at the campground (they do at some US state parks, but I’ve never been asked at a Canadian one).
phemens 08/22/19 04:29pm RVing in Canada and Alaska
RE: inverter power cables cca or ofc

I've yet to see an inverter at 1500 watts or above that didn't have lug terminals
phemens 08/20/19 09:38am Tech Issues
RE: inverter power cables cca or ofc

What type of power cables can be used for battery connections to 1500 watt inverter? CCA or OFC I use welding cable. I attach my own ends with a hydraulic crimper but most welding stores will attach lugs for you. Welding cable is much easier to run, nice thick insulation very fine stranded wire so it is easy to route. you can get colors but I just get black and then attach red shrink wrap on the ends. Compare 4/0 welding cable to std variety 4/0 battery cable. you'll immediately see the advantage to welding cable. For my 1000W inverter I use 4/0 welding cable. what thickness should be used for about 10-15 feet run for a 1500 watt inverter? I know it should be as close as possible to batteries but just for convenience, hoping to put further away with a thicker wire if possible. I keep my 3000 watt inverter about 2 feet from battery bank (not wet cell), and I use 4/0 welding cable as mentioned. That will be tough to run 15 feet as you want, I'd look at a way to get it closer and the if needed run 120 AC from there (much easier). Anything less than 4/0 and I don't think you'll like the voltage drop, unless you're keeping the draw to something other than microwave/coffee maker/etc.
phemens 08/20/19 06:18am Tech Issues
RE: Voltage drop on inverter

So in amongst all that, how do you shut off the Li bank at home at 80% SOC, and run on just the converter for 12v? Does your co-pilot have to read you the check-off list? Lol, no checklist required. The battery mfg confirmed that it's fine to keep the SOC above 80% (even at 100%) for a few weeks at a time. Right now when at home I have the charger set to kick in at 12.8V (which will almost never happen), and the solar controllers are kept on. The RV is stored in a pretty shaded area, so the batteries top up during the day but not fully and at night the parasitic draw on 12V (I keep extra 12v accessories on to help out) draws them down enough to exercise them properly. While camping that's not an issue since we regularly draw down to ~ 80% overnight.
phemens 08/14/19 12:47pm Tech Issues
RE: Voltage drop on inverter

I don't think I'd have room for all that anyways :) My storage bay is already pretty cramped with all h heavy gauge wiring as it is. The fuse off the battery bus would be a couple of inches max, no worry there. I can put the battery cut-off on either pos. or neg., I was always 'told' to put it on the positive side, but the possibility of shorting pos. battery to frame wasn't something I had considered (I do have battery post covers on all connections).
phemens 08/14/19 11:38am Tech Issues
RE: Voltage drop on inverter

I still think a "circle" bus would be best, with the feed taken from the center of the disk and the 5 batteries equally spaced around the perimeter. I think that's what I'm doing in essence, if all the cable lengths are the same that's what it works out to, if the diagram doesn't make that explicit.
phemens 08/14/19 10:56am Tech Issues
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