I just posted a web page on one of my sites that may be of interest to a few 
people on these two newsgroups.

Do you ever wake up and realise you forgot to charge your powerchair or 
scooter?

Do you ever wish that you could top up a powerchair in the middle of the 
day? In about 30 mins?

Or wish to be able to charge it while driving from your car?

Recently I bought a really good quality 30 amp mains charger that charges a 
set of powerchair batteries from flat to fully charged in about 1 hour 
effortlessly.  And also while I was at it a 5 amp charger that charges your 
powerchair while traveling by car or van. Both work great. Neither damage 
batteries and in fact both actually extend the life because the average 
level of discharge is lower than just overnight charging with the wimpy 5 
and 8 amp chargers supplied.

I dont sell anything and certainly these two chargers but do have links to 
the places that do if anyones interested.

And no they are not affiliate links either!

Just trying to help.

http://www.wheelchairdriver.com/inverters-chargers.htm