I thought I’d share a couple of updates with you on the 10Ah version of the DIY lithium iron phosphate power project.
I finally found an adequate heat shrink from suppliers in Germany (shop.lipopower.de) and 300mm wide, transparent film from an ebay seller. Both shops have various sizes. You remember I specifically wanted a clear heat shrink, so that I could show-off what’s inside. Why build something if nobody can see what you’ve done!? 😉
The heat shrink is really easy to work with, doesn’t require much heat, and can be easily formed or fitted around corners.
For those operators who wanted to have a QRO BMS for emcomm or high power field communications, I found the new BMS recommended by our friends at (shop.lipopower.de) It’s a Best Tech board in the 60A range.
Of course even a 20A BMS would have been fine, but I chose this one because I have other DIY projects coming up in the spring of 2018, adding 20Ah, 40Ah, and larger LiFePO4 Solar Generator class packs to our field communications arsenal.
This is more of a reminder for those of you who are going with a the QRO option. update the wire to your build accordingly. two small wire becomes a fuse, when enough current is applied. Here is a wire gauge calculator from Powerwerx that’s useful in this case.
Finally I’m going to add fuses to the plus and minus sides of the battery. Nothing has happened but I think it promotes the right safety methodology when showing people these DIY projects on the channel.
I didn’t case you’re viewing this blog post before having actually read or seen the series, here’s the playlist for the Portable Off-Grid Power for Ham Radio: