[Marvin]

You don't need to spend £90 for a decent power supply, 13.8v 20A output PS is enough, even for my 1/8th batteries (6.1A charge at 25.2V). Something like:

• This power supply is £36.99, has up to a 20A output, at 13.8V and has a single set of output connectors.
• This one is exactly the same, only it's £44.99, as it has two sets of output connectors.