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Understand that full charge is right about 3.5Vpc. My battery is a DIY with LFP cells from china - they were top-balanced when it was built, and remains so until pushed over about 13.5V - then one or more cells will reach full and begin to spike. As soon as charging terminates and it settles...

Perhaps the wrong size shunt? Connected on the neg side? Should not get hot unless over amped. I have one of those meters, has been fine.

Yes, just hook them up with proper wire and fusing and see how it goes. They'll either charge or they won't. LOL

I keep threatening to replace my epevers with victron stuff. More reliable and robust, better documentation, superior engineering.

Written by Chinese engineers. Sometimes does not translate to English very well. I don’t have all the answers, but I can tell you what I’ve experienced with my EPEver controllers. The controller needs a power source to operate, so it needs to be powered on first before connecting a PV array...

Getting gen 3 and roam in a couple of weeks for the motorhome. Setting out around campsite for signal good enough. Best Buy sells them now too. $150/mo is getting steep. Can suspend account when not traveling though. Keeping cable internet at the house for now - $50/mo for 300mbs with no...

Personally I like the idea of running a serperate circuit back to where you need power, and setup a terminal/fuse block to power things instead of cigar lighter which is limited to about 10A. Your Delta can be set for faster charging that way, and you can run multiple devices. XT60 plugs are...

SOK FTW.

Delta-Mini here…I do one or the other. It’s very portable, so I set it outside with the portable solar panels when solar charging. Put it where I need it for powering things. If I need/want to charge it with the cigar lighter then just plug it in. I limit to 8A for this. Or I can charge it...

A generator doesn't do any charging by itself. It draws from it's starting battery to start, then supplies 120VAC. I think most RV's have a converter/charger/12V center which does charge, but not generally the starting batteries. And most of them have a connecting solenoid that allows the...

For the hundred bucks or whatever, a victron orion will likely save you from having to replace your alternator. 100Ah is really very small for a house battery - my furnace blower pulls 10Ah running, so a cold night can pull 50-80Ah. I didn't notice if you had a 120VAC inverter. Connect your...

Seems reasonable. Are your current battery cables not big enough for the new current loads? If not, why not just replace them? Understand that a couple kw's may not be enough to run the whole coach? You might get a 15A load out of it. 200Ah of battery is really small - that means you might...

Unsub…SMH.

Not utilizing whatever solar power is available does not make sense to me. Top balancing is what you do when you build from cells. Balance charging can generally be implemented in bms above 3.4Vpc or thereabouts. And while 13.6 is technically a full charge for lfp, charging to above 14V is...

Dear lord… Anyway…I have a similar system that keeps motorhome starting batteries topped off and ready to go with a 100W panel and controller on two engine starting batteries for a 8.1L gas V8. It could easily power a dash cam. I like the black frame panels, and renogy makes a super cheap...

You have more in a suv that sits parked than I do in a Winnebago. I’m not getting the dash-cam thing. Enlighten? My cars park in the garage. [shrug]

Perhaps I misunderstood, but all this for a dash cam while the vehicle is parked? You can’t just plug it in?

Well, before we left it was running closer to $500. Just for power. Add for CNG and water, which was also getting expensive. And that’s with some stuff shut down. We moved to eastern Washington last September. Here Pacific Power is just under 10cents a kWh. CA was tiered, and we always went...

Did this on our 20yo Winnebago a couple of years ago…some general thoughts on the process and approach to the upgrades. Whatever watts you want to convert from 12 to 120 is about ten-times the amps. So a 2kw output or about 20A is going to pull up to 200A on your battery. If you’re using 90%...

They do - mounted it to the floor in the battery area. Inverter and charger are in there too. My tanks are all empty, water lines blown out and antifreeze pumped in. It can sit ‘till the temps come up to normal. I’m a bit surprised how many cars are just parked outdoors here with no freeze...

Late last year we moved from southern CA to Yakima WA. Oh dear it’s cold here - below freezing 24/7 for the past ten days. Last Friday it was -2 overnight. I didn’t really consider freeze-protection in an active way when I built my battery, but at least it got moved indoors to under the...

Identify the positive cable from the gen, it will likely be in the general area where all the cable arrive at the solenoids and batteries, and move the terminal to a post or circuit for the chassis/starting battery. An existing connector post may even have room on it. Or install a connector bus...

That makes sense. You don't want it bouncing all over the place in just seconds. I couldn't believe it just quit working, although that has happened to a few unlucky souls. :giggle: Trying to get help from them is hit and miss as far as I've heard around here. There's a language barrier...

Nothing sounds or looks out of the ordinary. And yes, if boost voltage is too high with any unbalanced cells, it's not uncommon for bms to terminate charge for over voltage. One cell can reach full charge and shoot up, shuts off all charging. I dunno, it should reboost when bus voltage drops...

Is the end of your graph after you power-cycle the controller? Looks like everything bumped back up. Are you disconnecting PV input before power cycling it? If your load is dropping voltage to 12.83 the controller should switch to the boost charging cycle, or at lease bump output to service the...

I'll take two. ;)

https://naturepowerproducts.com/products/215w-crystalline-solar-charging-kit/ Home Depot was selling them for $157 each. Not sure where you can get them now. Made in Vietnam. They are wired in series to a EPEver XTRA 30A controller. 230Ah diy lifepo4 house battery. EDIT: here's the build...

In 2-stage on the Meanwell, once the battery reaches the set max voltage charging terminates. It doesn't automatically restart the charge cycle if the battery drops - it has to be power-cycled. I have not studied the Victron programming, but they make good stuff, and the BT interface is really...

And there ya go...a ten-twenty year battery. (y) Just get a proper charger for it, cuz you don't want to trickle a LFP. Worth noting - the Meanwell chargers don't re-boost. Which might be fine if you're going to manually reset it when/if it gets used. I'm not that familiar with the victron IP...

Do people complain about Duracell batteries because they’re defective? Or because the user doesn’t know what they’re doing? Top battery brands: Crown Trojan Optima Oddessy Rolls surrette Lifeline Crown is a top pick - not so expensive but good quality and reputation. Trojan too. Optima is...

Amazon is a crap shoot. I had to go back to the beginning to review the application...wow three months ago and still deciding? You still need to decide your charging process for a standby application. For LFP I would pick one Will has reviewed with a positive result. For sump pump standby I...

LFP are best when cycled, but standby just fine. Virtually no self discharge. Ideal actually

Or half their rating -190Ah is about 85-90Ah useable. If you weight it down a lot the voltage will sag. Set cutoff 11.5 or something, or get more batteries. I had two GC’s, replaced them with 230A lifepo for at least double the useable capacity. ?

You can only use half the rating, maybe 70% with agm or gel. Plate sulfation is less with those. Check their weight - usually gc’s have a lot more lead in them, and are much more durable, more cycles. It is common for campers to replace failed marine/rv 12’s with the golf carts - they way...

You don’t. It would be a high capacity charger. FLA’s off-gas when charged. They need to be vented out. For inside you need sealed - SLA, GEL, AGM. Or lifepo4. ? Last time looked, Sam’s had Duracell gc2’s for$105. ?