Recent content by desmond007

Yes, i also will undercharge the battery to 80/90% to prolong life cycle, but my question is does CC/CV actually hurts the battery? If somone undercharge the battery to suppose 90% using CC/CV charger, will it actually damage the cell?

Hi As long as I remember about battery charging technology I knew that CC/CV is the safest charging technique for charging Li-ion batteries. Now I suddenly read about this. https://qnovo.com/why-is-charging-with-cccv-bad/ A company named qnovo who built some technology for big guys like Sony...

I think Li-ion 18650 cells usually get empty at around 2.75. So 2.75*13=35.75. My charger is 48V. So what you think how much it can put in? 50%? What is the equation to calculate? I have only written on my charger that it's 48v 4A. Nothing else I know about it. I don't know if its CC/CV or not...

Hi, I'm making a li_ion battery pack of 48v (13s10p) with BMS. So the charging voltage should be 13x4.2=54.6v. I have a VRLA battery charger which is about 48v 4A. So my questions are 1. Can I charge the lion pack with it? 2. If yes then will it damage the battery over time? 3. Will it...

Hello all, Thanks for all the information. Yes I was thinking about the same. First I need to create parallel group and then connect in series. So the best thing is I need to use a 54.6v charger cc/cv charger and after full charge the battery pack will be 54.6v. Now the question is this is...

1. But there in BMS I can see that voltage is increasing step by step, like 24v, 36v, 48v. If I create a 48v stack first and then connect 10 of them in parallel then how the voltage will be step by step like any generic BMS? 2 & 3. As I can see that 26C standard charge rate is 0.5C(1300mA), and...

1. But for this BMS, I need to first take 10 cells in parallel and then connect them in series, right,? 2. Yes I need to first ask the seller what is the max input voltage and ampere for that BMS. If it supports, will 5A differ the longevity of the battery? 3. Clear one of my confusion...

Howdy, Thanks for your reply. I'm little confused about the half of the battery higher charge rate. It's better I attach an image for it. I will use a CC-CV charger to charge it, maybe something like...

Hi there, I'm fairly new here, also new to this subject, so some suggestions about creating a battery pack will be highly appreciated. My goal is to create a 48v 26ah battery pack. For this, I'm using Samsung 26c 18650 cells. The specs are below. This is because it's a 2600mah battery I'm...