Well John Blankenship, did you find any answer on the qestions I asked? All that I’ve find (typing not only what you’ve suggested, but a little bit more thorough reaearch) are links to stores where to buy. It seems that there is no kind of manual for that battery, even for charger, not to speak about battery pinout and other things that might actualy lead to constructive conclusion. What I’ve found out so far is that these batteries would not charge on standard 14,4v li-ion NP-1 charger (charger is not “recognizing” the battery), and it seems that it is so because of different number and placement of battery contacts. What I want to know is would LBA500 power Zaxcom devices with NP-1 slot? If you have found that information on internet, would you be so kind to share it here, because mr. Google doesn’t work that way where I’m from. That information would be useful not only for me, but also for many others because Sennheiser just started to make these replacement batteries (meant to power their speaker LSP500 pro in a first place), and it would be nice to know if we can use them for our purposes, especially knowing that supply of NP-1 type batteries are pretty low here in Europe. Also if anyone had any experience using Sennheiser LBA500 battery with any type of gear we usually use in our location sound arsenal, please share? Thanks!