What happens if you want to go battery-powered? I've invested a fair bit of time & money (nearly £200) over the last couple of weeks in experimenting, so I thought I'd best start sharing some of what I've learned. WHAT I'VE GOT I've ended up with two possible solutions: 1. PJB Briefcase (the original, not the 'Ultimate' version) powered by a newly-bought Lucas battery at the spec recommended by the PJB manual. This was easily found and cost £19.45 new through eBay. I've h