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I have plenty of charging capacity in my panels. That's never been an issue. My problem has always been charging capacity through the conext inverter/charger when on AC power. My generator is undersized for one thing, and then the conext is limited to 90 amps of charging, which really isn't...

Still experimenting with the Conext SW 4024 charger settings for my new LifePo batteries. 2 Chins 24v 100 Ah in parallel. Max charge current per battery of 50 amps. My AC power is supplied by a 4500 running watt generator that can only supply 19 amps on propane. Yes, I know now that this is...

Solar is my primary charging source, but in this long stretch of heavy overcast I need to use the generator from time to time. I'll bump it up to 90 amps. Thanks. That should shorten my generator run time and save me some expensive propane.

I have two 100 Ah 4 volt Chins LifePo batteries and need to charge them safely from my Conext SW 4024 inverter. Each battery is rated for maximum continuous charging current of 50 amps. They are connected in parallel via bus bars. Do I set my inverter charge setting to 100 amps max? (I really...

do you have a second charge controller or a switch to go between the two different batteries?

By the way, my Midnite Solar e-panel which mates with my Conext SW came with the Midnite Solar 500A shunt installed for the battery negative cable. It even has a negative battery bus bar mounted on it too...

I was using Peukert's law to evaluate my Lead Acid. That's what pushed me over the edge to dump them for LifePo.

Wow. You have a LOT of Ah's. My lead acid (which are going away) only has 360 Ah (rated) times 50% at best - which I never really got since they were damaged by overcharging until the fourth tech support was able to find the problem with the inverter/charger temperature correction setting...

Looks like the Whiz Bang Jr is the best overall solution. I like my Classic 150. The WBJ will eliminate all the guess work in trying to understand the state of my battery bank. I had seen this product in the past, but never understood what it was for. Wish I had known earlier as it would...

I have my two new Chins LifePo 24v, 100 Ah batteries installed and ready to make the final switch over from the AGM lead acid as soon as I have a sunny day to be able to top off the LifePo's. I didn't spend the extra $$ for the smart batteries, so I have no blue tooth or any other way to access...

I'm grateful for the expert guidance on this forum, or I'd be calling the power company to hook me up about now.

I'm in central Montana up against the east side of the Rockies. Very rural. I've been trying to find a solar expert I can pay just to come out and advise me, but no one wants to be bothered with that. Everything in Montana is at least a full day's drive away. There's no such thing as a free...

What I keep coming back to is that I believe the Kilovault batteries were damaged. The system went live the end of June 2021. Everything was great - then short, cloudy winter days came along and I needed to start using the generator to supplement. I carefully checked all the settings based on...

Current setup is lead acid AGM. I'm about to install LifePo - of course, settings will have to change.

Meant to state that Absorb charging is 28.2v

This is helpful. So, would a sunny winter day in the Northern plains with temps in the high 40's be considered "normal"?

Each pair of panels is in a series. the three pairs wired in parallel to the combiner box - that's what I was trying to say in poor shorthand. The reason I'm asking is that I'm in the process of replacing my AGM batteries with LifePo. The AGM do not hold a charge. At dusk, they will drop to...

I've been through the manual many times, but am not sure I'm interpreting the Classic 150 status output correctly. I have six 420W Q panels. Three series pair. Total rated output should be around 2500 watts at 48 volts DC going to the Classic. My battery bank and inverter are 24 volt. Today...

I am installing two 24v 100 Ah Chins LifePo batteries to replace an AGM battery bank. Each battery has its own internal BMS, but are not smart batteries (no blue tooth). I am connecting these to the e-panel with bus bars (rather than daisy chaining). I've been watching some videos about the...

Thanks: This clears up some questions. Since this is my main residence, the batteries are in continual use and get charged daily. (I'm single and have animals, so I never travel anymore.) If there is not enough sun, I run the generator. I've become accustomed to keeping a close eye on the...

Thanks. My strong suspicion is that these batteries were damaged during several weeks of overcharging before the vendor tech support, the battery manufacturer tech support and the inverter tech support could come up with the correct value for temperature compensation by the inverter. Ever...

Thanks for the detailed reply, but to be honest, this is all over my head. I just ordered a pair of 24v 100Ah Chins LifePo batteries. They each have their own BMS. I'm not a technical guy and don't have the knowledge background, time or money to get into the detailed testing and tweaking...

Last question (I think) for LifePo. I've read that it's important to fully charge new batteries before putting them under load. I don't have a stand alone charger - just the solar charger or the inverter charger. I suppose I could pick a sunny day, disable the inverter (so no load would be...

I just checked Chins-US website. The 200Ah 24v is no longer listed. The 150ah 24v is shown as "Sold Out"

I have 2500 watts of solar at 48v (50 amps). Classic 150 charge controller set to the proper configurations. I'm in the northern plains of central Montana. Rare to have a day with such heavy overcast that I get no solar. Better than 50% days with clear skies. Sun hits the panels horizon to...

I wanted to order the 200Ah 24v, but it is "Not Available" at this time. Hasn't been for awhile now. Must be popular.

Thanks This was really helpful. The reason I'm going to LifePo is that the 380Ah of Lead Acid should be adequate, but is NOT. My solar array is barely sufficient to fully charge the batteries in the best of conditions: Long sunny days in July. With these short winter days, the batteries never...

I'm looking at purchasing two Chins 24v 100Ah LifePo batteries and noticed that the Ah capacity rating is based on a 5 hour rate (0.2C), compared with the typical 20 hour rate for lead acid. I came across something suggesting that with lithium, there really isn't much difference between C/5 and...

Thanks Steve: That helps. My generator feeds 240v into the Conext SW inverter. Running on propane, that "30 amp" outlet only delivers 19 amps max. AC. I just need to set the inverter/charger parameters correctly. If I'm understanding correctly, the standard charge rate is 30 amp per...

By the way. I know the voltage requirements, what I need to understand is the amperage requirements. Thanks

I'm new to LifePo. Looking to replace AGM batteries. I've discovered that my solar array and generator are both undersized for full charging of my AGM batteries. The panels are barely minimum for the BEST conditions. The generator only puts out 20 amps and I need 30. I'm doing a cost...

Thanks. This is good information. In the Chins, the only battery they seem to offer right now in 24 volt is a 100Ah (the 14v, 200Ah is out of stock), so I need two of those in parallel to get 200Ah. For the pump, it is a shallow well 1/2 HP 240 v pump (in a cistern - head is only about 8 feet)...

some more notes: last week I tore the battery bank apart and relocated it to the other side of the wall where I can insulate it better in an attempt to raise the temperature. At that time I checked the voltage of each separate battery. Within an hour of taking them off a five hour full sun...

Thanks I have the manual and have poured over it. It is pretty vague on temperature effects on charging/discharging. The only chart is Figure 7 in Section 4.2.2 the vertical axis is time and the horizontal axis is temp. This doesn't explain to me why the batteries instantly drop to 80% upon...

My application is an off-grid home in Montana. 2500 watts solar panels; Conext SW 4024 inverter; Classic 150 solar charge controller. Batteries are four AGM 12v 180 Ah - two series pair in parallel for 24v, 360 Ah. The AGM's are near end of life and I'm strongly considering LifePo. I want to...