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Hey guys, What's the story on the Made-In-China dot com online store, any better than Alibaba? Advantages? Disadvantages? Seems like almost the exact same sellers as the Ali sites. Any good stories? Bad stories? Please share if you did business with them...

I heard from a friend that he bought pre-made drop in Lithium batteries, and they claimed their cells were MADE IN THE USA! I'll find out in a sec what brand they are, but he was adamant that was the case. Edit: the company is called Lithium Battery Power. Pretty generic name but big website...

For those of you that have test equipment, can you tell me the how's and why for certain configurations? I'm making 125Ah 12v lead replacement lithiums for marine use and leaning towards the configuration manufacturers use like that Ionic just because they know more than I do. For instance...

Haven't seen a lot written on Graphene lithium iron phosphate cells, but I've seen them on the market, and they boast higher energy capacity, extremely high cycle life and lighter weight than regular LifePO4. Anyone tried them? Are these old or new news? Are they worth a shot? The price is so...

I was chatting with a popular supplier of LifePO4 cells to members of this forum, and said I was looking to make an car/marine replacement starting battery, mainly deep cycle use, running navigation, depth electronics, pumps and such, and she said she'd talk to her engineer. He told her I should...

Ok so my last post sucked. Was just too wordy and got no response. Here's a summary of what I'm looking for: I'd like to 'DIY' two different LifePO4 batteries with bluetooth iOS iPhone control, so like lead-acid replacements in these capacities; 1. One for deep-cycle use (group 27 lead...

My question will help many others, I'm sure, that are in the same boat; Will's vids convinced me it'll be super simple to build my own LifePO4 power storage, not for solar, but for my fishing boat. I like the idea of DIY, learning, and using top quality parts compared to the 'cheap' drop-in...

My question will help many others, I'm sure, that are in the same boat; Will's vids convinced me it'll be super simple to build my own LifePO4 power storage, not for solar, but for my fishing boat. I like the idea of DIY, learning, and using top quality parts compared to the 'cheap' drop-in...