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There was a surplus company here in SoCal selling brand new in sealed box 100 amp Renogy Smart Lithium batteries for 300.00 then 325.00 . I bought two of them and have had zero problems so far. They’ve been installed in my trailer for about 3 months now. A friend of mine picked one up too and...

Hello all, Ive got several lithium ion packs made of 18650s. Occasionally they will go offline due to being at or below the minimum voltage per the BMS. At this point they will not take a charge either. If I read the voltage on the output side of the BMS it’s essentially 0 volts. On the Input...

I asked Wil the same question after the review of the smart battery but he wouldn’t answer the question.

I had a similar issue. What I found is don’t press and hold the activation button. Press and release it quickly one time. Thats all it took for me. Also, make sure you are using the correct port. Initially the button should be a dim blue. Once activated it is brighter. I also bought the remote...

Nope, I bought two of them and they gave me a price break for buying several items. They are in factory sealed boxes. Not labeled “AGM“ I picked them off of the pallet myself. Opened them up to inspect them before I bought them. They have some cool stuff there. (While supplies last). I picked...

Does anyone know if these will work in any orientation? Might be a neat project for a window a/c unit. Don

I recently picked up two of them NIB one for 300 and the other for 325. They work fine.

Just to add to this, I purchased a radio from a Chinese manufacturer. The radio had a lot of problems and the software to program it was terrible. I gave an honest review stating all of the problems I had encountered. I received a rather colorful response from the Chinese seller asking me to...

Do a search on this site. https://diysolarforum.com/threads/what’s-inside-of-an-aims-12v100ah-lifepo4-battery-have-a-look.4230/ I would recommend a different vendor based upon my experience.

Had a similar problem with my battery. Different brand but was a failed BMS. I replaced the BMS and now it’s fine.

Actually not, mine failed in 6 months and they wouldn’t return phone calls or emails. They did not stand behind any kind of warranty. I ended up repairing the battery on my own by replacing the BMS and new case. Once I opened it they would not do anything. That part is understandable. I spent a...

You might want to search this site and look at some of the reviews. https://diysolarforum.com/threads/what’s-inside-of-an-aims-12v100ah-lifepo4-battery-have-a-look.4230/ and here...

Thanks everyone.. that helps to understand.

If the battery pack already has a BMS why do I need an SCC? Isn’t the purpose of the BMS to protect the battery from over charge and over discharge? In the past I have used a regular bench power supply to charge battery packs with a BMS. I did not have a CV CC supply. I have used a Harbor...

Check out this link. It might answer some questions. http://www.offroaders.com/technical/12-volt-wiring-tech-gauge-to-amps/

The only pics I have are in my previous post about “What’s inside of an Aims 12v100amp battery”. I was able to zoom in on a pic and they are using 32700 and what I believe were 32650 together. Not 26700 or 26650.

I believe there’s a couple in my AIMS 12v100 amp battery. There were two different types of cells in it. If I remember right there was the 700s and the 650s. I thought it was a bit odd.

Is lithium ion synonymous with lithium iron phosphate or Lifepo4? The label on the battery is lithium ion. Their fine print call it lithium-ion phosphate. Model No. KS300 Battery Type Lithium-ion phosphate (LiFePo4)

Mine was never exposed to direct moisture or hose during the time I owned it. Even during rain showers the battery stayed dry from what I could see. I did check it once or twice. Some on this group have suggested a phenomenon they call ”pumping” whereas the cells as they heat up during usage...

I have my battery mounted on my trailer frame in a group 27 covered case. It is not directly exposed to rain or inclement weather. Here in SoCal we do get occasional high humidity but nothing like Florida. As far as Aims goes, I’m impressed you are able to reach them. They flat out refused to...

I think it’s a wait and see game. Bioenno has been around awhile and has a good product line. Not saying BB doesnt. I’m just not sure these batteries will make it ten years. No matter who the manufacturer is. My Aims battery was about 6 months old. When it finally died they wouldn’t respond to...

Thank You for that.

Thank You Steve. That makes sense. Seems odd they would mix the two in the same pack. Don.

Hello all, Im in the process of rebuilding my Aims 12v 100ah battery that failed a few weeks ago. I noticed the most of the batteries in it are labeled as 32700. I also noticed some that were 32650. What is the difference in these two batteries? I was a bit surprised to see that. I was able to...

Wow, that’s great that they don’t charge tax.

Thanks for that. I want to seal it up as best as I can. The last one failed due to moisture getting inside the case, causing condensation and shorting out the BMS. Talking to one of the other dealers he informed me it could have been caused by the filler ports on the top of the case were not...

Bioenno makes a good product and is less expensive than BB. I‘ve had excellent service with their products from solar charge controllers to lifepo4 batteries. I had a bad experience with Aims and would not recommend them. I was talking to Kevin (the owner at Bioenno) the other day about the...

Hello all, Im going to rebuild my Lifepo4 12v100ah battery pack. My previous battery died and the company will not warrant it. I opened it up and found the BMS has failed due to moisture. I’ve ordered a new BMS and would like to find a new empty case for it as well. I found one on EBay buy they...

Not a bad idea but the case would be huge. It wouldn’t fit the group 27 case.

Thanks. not sure how to resolve this issue. I’m now curious if each manufacturer that uses this case style is going to end up with the same problem? I would imagine it was an oversight during the design process.

Hard to say. I received emails from them today. Never did hear back via phone messages I left.

@tictag I would focus on getting it replaced under warranty (and yes, I know that you've opened it but I'm quite sure they would not want those pictures splashed around the Internet!) but you can buy active dehumidifies designed for such small enclosures. They are like the size of a 50p piece. I...

That’s interesting. But that also brings up a concern for everyone. If this is a common problem, that means it’s a potential flaw in all of these batteries designed in this way. Why are we not hearing or seeing this from everyone that owns these batteries? Perhaps the manufacturers need to add...

Hello again all, Some might have seen my rants about my issue with the AIMS battery I bought last year. Its Only about 6 months old and it started to give me problems late last year. Last week it died completely. After several phone messages and an email asking for support without any response...

Thank you for that. I will attempt to contact them today with that address.