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"Max charge voltage: 14.6A"

Mine is undoubtedly one of the fake ones but has served me well over the years. It is a little off on the voltage though, I'll give calibrating it a try.

I got one of those iMax B6 chargers, I may do that at some point.

Never said empty. Heard bottom balancing, especially LiFePo, is better but that doesnt mean empty, it means 3.2v per cell. In this case it'd be 2v per cell as SLA shouldnt be drained past 50%. Im constantly checking the voltages etc, will make sure it's good don't worry thanks for the concern.

"I managed to get 4 of these for 40$ so I'm using it with 1 panel as a secondary 24v side-system." They all had the same voltage so i went with it. Heard bottom balancing is better. Ive had em out there for only 4 days now, will continue to keep a close eye on them. Im obsessed with checking...

I will keep that in mind, thanks for the tip.

Im just gonna let my MPPT do it's thing and hope it doesn't explode. In full sun its gonna be 7a 24v with 2 sets of 2 batteries in parallel so will be exceeding the "initial current" rating by 1a.

Okay I'll let these batteries become test subjects to this fast-charging until I take the plunge on these LiFePo4's. https://www.ebay.com/itm/174615393607

I think it can mean gel, flooded, and AGM. Mine is AGM I think, it doesnt say. Heres the box. I managed to get 4 of these for 40$ so I'm using it with 1 panel as a secondary 24v side-system.

Gonna take that as a yes. YOLO

Can I charge a 20ah SLA at 7a?

Building it yourself is always cheaper if you're up to the task but might be better to have it prebuilt if you're going for a first-time large system.

I suggest following what Will is saying. Charge slowly, discharge slowly, keep in optimal temperatures, don't overcharge, don't overdischarge. Set voltage lower to get more cycles but lower capacity, do what works for you. He is speaking truth in that video. He provides an interesting chart...

This measures DC current https://www.ebay.com/itm/402802628522

More amps = bigger wire More distance = bigger wire Volts are less of a concern in that regard. Here's a chart I'd say for less 5a you can go with 22awg Less than 10a you can use 16ga 10-20a definitely at least 14gauge

Saw your post on reddit. Glad you were able to figure it out. Best of luck to you

High drain lowers the amp hours so instead of 150ah it actually can output more than that if drained slower.

No, thanks though...

https://www.ebay.com/itm/224479760762 Im sure its a scam, the same battery is going for >150$ more from this link. Only item with 0 feedback, thats a red flag if i've ever seen one. https://www.ebay.com.au/itm/303695214031 If cells are ~200$ for 100ah then I'll just stick with those.

Oh so 100ah LiFePo4 for 200$ is unlikely to be a scam as long as it doesnt include a BMS and case? Thats great thank you so much for the info. How about this?

Amazing. Im seeing all these deals on ebay and now I think every one of them is a scam. https://www.ebay.com/itm/194163245539 https://www.ebay.com/itm/254892503698

More fakes? https://www.ebay.com/itm/363389026775

Where the heck did you find that? Don't hold out on us!

How does shipping work with a group buy?

A pwm in the meantime is better than nothing. Tracer is best bet for MPPT imo. If you want really cheap, there's this. https://www.ebay.com/itm/142491542813 Although 30a Tracers are going for 90$ https://www.ebay.com/itm/324068705554 And 40a for 110$ https://www.ebay.com/itm/284307814681

I appreciate you looking out for me and will take your advice. There was another TGTBT battery on there https://www.ebay.com/itm/164883650066 but has since sold. Copied and pasted description and pictures. Apparently "5 sold" of the one I got before I bought the "last one". Seems like a scam but...

Ive gotten amazing deals before. Yes feedback is good but only 15 reviews so im not sure what to think. If I dont get the item i get a refund, simple as that. Usually ebay holds the money until it's delivered as well.

SriLanka automatically = scam? I figured if they were scammers they would have been banned after 7 years.

Not that chart, this one. I usually do 60-70% but might do 50% from now on.

I did that and also asked if it was new or used, he said new. It wasnt a multi-item listing.

Ebay. Ive been scammed before and always got refunded on high price items no problem. Hopefully thats the case this time. Idk how to get to the link but here's the seller https://ebay.com/usr/lakmthar

Just ordered it. Cant get the link but heres the description I figured it could be a scam so I plan to test the capacity right away. Am I reading it wrong or is it just misleading? Says relative capacity is higher for 0-10% SoC. I know the recommended is not 0%, just clarifying the chart...

Should I store at 0-10% SoC as the chart suggests? New question, I just bought this "New" "100Ah" "LiFePo" battery for 200$. What's an inexpensive way to discharge test the capacity?

Okay so temperature makes the biggest difference and as long as its at or below 25c(77f) it will do well. How do they do in 10c(50f)? And between 30-70% charge (~13.0v-13.2v according to this chart below) is basically the same. One thing I'm curious about that chart though is it says...

I've heard anywhere between 3 and 10 years if stored properly. Ive heard anywhere between 2000-12000 charge cycles. This doesnt add up as 5,000 cycles which is consistently mentioned equals over 13 years. Assuming everything is done properly with quality batteries... 1. How long do they last on...