Hey guys,
Was wanting to ask if Sena 20s has the internal circuitry to limit the charging amperage to only accept the optimal number of amps without excess degradation of the battery. Reason I'm asking, I've been charging my Sena 20s using a USB 2.0 port on my computer which puts out 5v/0.5A. However, I was wanting to see if it's safe to charge the Sena 20s using a USB 3.0 port which outputs 5v and a maximum of 5A. I also have a portable battery bank that output 5V/1A and 5V/2A and was seeing if the Sena 20s can be charged safely using the portable battery bank without degrading the battery healthy performance.