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I guess this is just a small rant... Kind of seems a bit ironic; while chatting with a vendor the other day and they said this: So how do I know they are not selling used or lower capacities just because they say they are an honest seller?!? It seems like every vendor advertises 'New' and...

I was looking online tonight and found a 200AH battery with 180-190AH Capacity. What?!?! Which totally makes no sense. It is clearly advertised as a 200AH battery, but the specs tell a different story. I wonder if this is becoming a trend. B200AH Product parameters: Product Name: Lithium...

I have 8 Calb 200 AH cells that I received earlier this year (bought on AliExpress) and I recently purchased a DL24P capacity tester. The plan is to capacity test each cell as I suspect they are actually grade B cells that were sold as grade A cells. I used the batteries this summer in my...

I was searching the other night for a simple 4s active balancer on Aliexpress to add to a new battery build and I came across one vendor that mentioned their board would make a small "high pitched sound" while it was running and they made it sound like that was a feature. To me that screams...

I am doing some research on upgrading to Lifepo4 batteries for my camper to replace a set of 105AH AGM group 31 batteries (210AH total). I would like to be around double that when I am done (~400AH). So I was considering buying individual cells and making a 4s2p battery, but looking at the...