02-02-2017, 11:32 PM
Well I'm not an EXPERT on batteries, but I have stayed in a Holiday Inn Express! 
Every AGM battery I've ever seen is sealed. There is no way to add water or acid. The nice thing is they work in any orientation with no leakage. Since they aren't venting all the time from caps like you saw in the video, there is pretty much no corrosion either. A very nice benefit. Keeps the terminals and battery tray, etc. nice. I'll never have a flooded cell in my bikes or cars anymore.
Here is a Wiki on them: https://en.wikipedia.org/wiki/VRLA_battery

Every AGM battery I've ever seen is sealed. There is no way to add water or acid. The nice thing is they work in any orientation with no leakage. Since they aren't venting all the time from caps like you saw in the video, there is pretty much no corrosion either. A very nice benefit. Keeps the terminals and battery tray, etc. nice. I'll never have a flooded cell in my bikes or cars anymore.
Here is a Wiki on them: https://en.wikipedia.org/wiki/VRLA_battery
