Folks,
There have been a number of concerns raised regarding the charging circuit used in the Nanovna.
A number of forum members also wanted to know what other batteries might work in the unit.
I've commented previously on how to re-use existing mobile/cellphone/tablet/radio batteries and I have done so on many of my projects.
As an avid follower of the various projects on the Instructables.com website, today's Instructable's newsletter came with yet another person's take on re-using these cells.
As always, due to the unique properties of lithium batteries, care must always be observed.
**Please address any questions to the author of the article on the Instructables website.
