Leisure Battery time to replace again

Soon comes around again don't it. Another few years and the installed leisure battery just does not hold charge as it used to (in spite of every good intention of giving what I think  is a regular charge up even through the winter) fair enough ,over the years since 2004 that  I have enjoyed  the Nuevo , this will be my third one .  
Mine is the under seat original Nuevo sited 85ah compartment that very incoveniently restricts sizing and possible replacement to the one size of battery.   

Looking at the Banner 85ah 95551  (some suppliers describe it as 72/85ah ?? don't know why, and some describe it as maintenance free ? ) the descriptions extoll  'thicker plates' - 'lasts up to three times longer' than other batteries on the market ?) 

Can't immediately decide if its worth paying £35  extra  at £100.00 for the Banner as opposed to another  offered 'standard' battery  that I have had in the past at £65.00  (you could buy 2 of those for £30 extra)

Anyone had experience please of Banner Leiusure Batteries some have said they need regular topping up but this particular 95551 is described as maintenance free and that would obviously be better in the under seat location in the Nuevo ?

Banner are often recommended and have passed leisure battery tests which allow them to be listed on the NCC (Caravan) website. Many batteries sold as leisure batteries are no better than standard car batteries so, yes, they are a superior product with thicker plates etc. but this is only really of benefit if you are regularly using your motorhome off grid without mains hook-up. If you are always on EHU then a cheaper product is probably just as good.

Buy the Banner, write the date on it when you install it and if it doesn't last three years complain and if it lasts five years swap it before it fails.
Unless you need to have the battery connected or the van is powered throught the winder then disconnect the battery and make sure the top of the battery is so clean you coukd eat you dinner off it and you probably won't need to look at it over the winder period.
I have a fun car and it's off the road at the end of October and not back on the road until the beggining of April and it's fired first time every year.  It has a batry isolation switch and it has had it's battery changed every fifth year mid way through the summer.

Yep, think I will go the extra £30 squid then.  What a good idea writing the installation date on it, why didn't I think of that (too bloomin obvious probably!!)   I will sort out a more regular charging regime particularly in winter and see how long it lasts in comparison to the cheaper alternatives.  
We often take advantage of an EHU (if it's there on any CL say) but on the other hand always enjoy being self sufficient without being a restriction if its a really nice site.   
Is it me or over recent years both of the principle Clubs sites seem to be getting too 'organised' and crowded at peak times  (rules when to arrive when to go ) some I think are obsessed with regular grass manicuring etc.
Its up to the individual of course were they wish to stay but we prefer the large selection of CLs as a first chioce combined across both the clubs hands down.