D W Posted January 22, 2018 Report Share Posted January 22, 2018 I ran across these Dewalt AA Laser battery packs on Ebay (image source is Melbourne Tool Sales on Ebay). Wouldn't it be great if manufacturers sold battery packs like these that you put your own 18650 cells into. All the protection electronics would be in the pack, with just the batteries being removable. This would allow you to either charge the pack on the usual charger, or, remove the cells and charge on a standard AA/18650/26650 battery charger. Cells could be removed and put into another manufacturers pack. I'm sure there are many problems with this including cell movement, connection quality, temperature monitoring, dust, water etc. If an effort was made i'm sure some of these could be avoided. 1 Quote Link to comment Share on other sites More sharing options...
HiltiWpg Posted January 22, 2018 Report Share Posted January 22, 2018 You realize they make more on consumables than the tools, right?Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
D W Posted January 22, 2018 Author Report Share Posted January 22, 2018 (edited) 2 hours ago, HiltiWpg said: You realize they make more on consumables than the tools, right? Sent from my iPhone using Tapatalk Yeh I understand that, and I guarantee the manufacturers will never do something like this. Unless, perhaps there is a major worldwide shortage of lithium, or something causes their production cost/sale price to soar so high that they see a decline in tool sales because people can't afford the batteries, then maybe they might consider doing it to get tool sales back up (a massive unlikely hypothetical scenario!). I'm not really talking the economics of it all, just merely throwing up an idea to think about. A third party could make it happen (please, someone out there do it ) Edited January 23, 2018 by D W added more Quote Link to comment Share on other sites More sharing options...
BMack37 Posted January 23, 2018 Report Share Posted January 23, 2018 Neat idea but you want a battery like we have now. Look at how some guys treat their power tools, an easy open battery pack will be dropped from a roof onto concrete open and spill the cells everywhere and everyone on the jobsite will call them junk. Quote Link to comment Share on other sites More sharing options...
D W Posted January 23, 2018 Author Report Share Posted January 23, 2018 5 minutes ago, BMack37 said: Neat idea but you want a battery like we have now. Look at how some guys treat their power tools, an easy open battery pack will be dropped from a roof onto concrete open and spill the cells everywhere and everyone on the jobsite will call them junk. The fastening mechanism would definitely have to be better than the one in the photo. Quote Link to comment Share on other sites More sharing options...
rcarnes911 Posted January 23, 2018 Report Share Posted January 23, 2018 Sounds like a big headache, you will end up with tons of loose batteries all over the placeSent from my Nexus 6 using Tapatalk Quote Link to comment Share on other sites More sharing options...
D W Posted January 23, 2018 Author Report Share Posted January 23, 2018 1 hour ago, rcarnes911 said: Sounds like a big headache, you will end up with tons of loose batteries all over the place A 15 cell pack would be a nightmare! A pack like this for 3 cell M12 and Bosch 12V would be almost manageable. The bottom lid mechanism could be a cap that screws off. There's a huge problem of putting cells into the same pack that have different charge levels. 1 Quote Link to comment Share on other sites More sharing options...
Tug Posted January 23, 2018 Report Share Posted January 23, 2018 You'd need to have some idea of what you're doing when it comes to choosing cells for your pack, but other than that this could definitely work. Quote Link to comment Share on other sites More sharing options...
m.k Posted January 24, 2018 Report Share Posted January 24, 2018 The main problem with this would be letting people cope with unprotected Li-Ion cells. Just look at all these e-cig guys that put unprotected 18650 in the same pocket with their keys. Further annoying would be the no doubt higher price. You would have to have all time cell voltage monitoring because you could put non-matched cells in there, the contacting would be non trivial etc. But i have to say the concept is interesting 1 Quote Link to comment Share on other sites More sharing options...
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