This is fantastic, great job. Definitely alleviates one of my hesitations in building a DIY pack, which was the soldering process (for those of us without spot welders).
When I came across your video, I was thinking... FINALLY - I love it, and just ordered a few of them to put together a pack with my 18650's I have been harvesting from laptop batteries. I am looking forward to creating a power pack "without" ruining cells by soldering them. I say ruin because I am getting better with soldering but would be too long on the battery with my iron causing too much heat to the cell. I have an even better idea, but don't have the finances to create it... Thanks for creating the lego set of battery pack creation ;)
Very clever and exceptionally well presented! Thank you for creating this product and this video. Is there an amp limit on the magnetic/press connection? I have noticed that some pack builders like Tesla have micro fuses soldered to their cells. How do you approach this aspect of pack building?
Thanks! The amp limit per connection is limited by the power output of the cell- a 4.2 volt fully charged cell of 3.4 amp hours at 1C puts out just 14 .2 watts- easily handled. I would love to incorporate cell level fuses into the product and am open to ideas as long as it would not compromise the ability to simply take apart a pack for repairs. I have never seen a modern cell have an internal short. I have seen modern cells that are somewhat less than their advertised amp hours. If a parallel string of cells is charging too quickly, and also discharging too quickly, a cell is weak. With BatteryBlocs the parallel string can be simply unbolted, the cells tested, and the weak one replaced. Given the two likelihoods, it seems that the ability to assemble and disassemble is more valuable than a fused cell... But that's just my opinion ; )
Hi Rafael, Glad you like BatteryBlocs. You can go to my website, www.batteryblocs.com and get prices and stuff. Email me from the website if you have any questions.
Shawn, love your instruction but I'm confused, in both this vid and "How to use plastic fence post covers as cases for BatteryBlocs" you hold up a 10P 5S assembly and refer to it as having a 36 volt output. Surely I'm missing something.
