[Jeremy]

Firstly, I am not your "mate", to the very best of my knowledge we have never met or become acquainted.

Secondly, you came here asking for advice. Some of us with first-hand experience took the time to both try and help you and point you in the direction of further useful information.

Finally, you chose to draw a conclusion on a product without personal experience of it and without having taken the trouble to weigh the balance of published opinion. You then decide that it is OK to publish that ill-considered conclusion, in firm terms, without considering the negative impact it may have on the vendor.

If you took the time to read through the ES thread, then you would not find "many posts about these batteries cutting out" at the maximum current that you wish to use. You will find many people using them on fairly high power installations and singing their praises, particularly those who have the newer BMS.

You seem intent on rubbishing a perfectly acceptable product, from a decent seller, without the benefit of evidence. I happen to think that is unfair and a little unreasonable.

If you want to pay a lot more money, then fine, just go ahead and by a stack of LiFeBatt or A123 cells. These are the best available, are well proven (at least in the case of the A123 cells) and will undoubtedly deliver extremely high currents if required (check out the Killacycle to see what A123 cells will handle). They will cost a great deal more money (around £450 for 60 off A123 cells) and will require the development of a BMS and charging system at additional cost, but will probably deliver a couple of hundred amps if needed.

Jeremy