Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
The problem with the "electronic" ones is that they dont like either voltage spikes or reverse polarity. Now the reverse part can only happen by fitting the wrong battery or simply getting it wrong BUT i have seen, more than once, both done.The voltage spike is far more common due to old and poor connections/ looms.Personally i will use the original type until i cant get one