Yep that one at £72 delivered incl VAT is decent. No secondary threaded terminals though and those handles will start hurting pretty quick carrying with one hand (a single chunky handle is better if transporting by hand)
As far as future requirements go... I use inline fuses, battery clamps
http://www.vehicle-wiring-products.eu/VWP-onlinestore/battconns/photo/b167n.jpg
and (not ideal but) 16A click JB's
http://www.tlc-direct.co.uk/Products/TLCT100C.html
wired 1jb (3 terminals...48A) for each cable. Make up fused leads as required. Have also used 'outdoor' flex connectors.
http://www.tlc-direct.co.uk/Products/TLRC3.html http://www.tlc-direct.co.uk/Products/TLRC3.html
but seems wrong as I think they have a standard pin pattern so could be misused, also rated lower even though they seem more substantial than the 16A click's.
Plug-and-play, no hassle in the field (especially if it IS a field!), no chance of croc clips making a poor connection under high load or getting dislodged. Add and remove loads easily without disturbing other gear. No temptation to piggy-back croc clips as the clamp is fully covered (but get one with dual terminals anyway...only crimp, crimper, and spanner required to add something on-the-fly, or a high load like an inverter. Clamps come off easily for transport, storage etc (or set up split charge (one relay) wiring in your van (if you have one) and clamp it in there when not in the field - i've switched my interior lights, power (12 sockets) and stereo circuits over to avoid accidental main battery drain and stereo switching off when you switch off the engine (switch in cab)). You can also recharge your main battery from the leisure one if you do manage to drain the main one by accident.
The problem with click jb's is the lack of cord grip but this can be improved with a bit of improvisation.
Couldn't find a cheapish alternative for a plug & socket arrangement. Obviously ones that could be plugged in to standard 230/400v outlets would be unsuitable.
Worth getting one of these, very handy and you don't even have to get your voltmeter out to keep an eye on battery condition
http://www.halfords.com/webapp/wcs/..._productId_839075_langId_-1_categoryId_165489
Chop off the plug and wire to battery via preferred distribution method. It has mounting clips underneath.
A piece or pieces of plywood gives you something to mount things to and provide a flat surface if needed outdoors. You could get more elaborate with enclosures, and rain is a factor (got any spare umbrella's lying around?) but bits of ply suffice if weight etc if a factor.