When I went to school, re-chargeable batteries with energy density > 100 Wh/kg were but a dream, and packaging did not include foil wrapped flat cells with aluminum foil flexible terminals. Yay progress! I'm hoping someone who has actually engineered with these things can give me a hint, link, pointer, or somesuch.
I have a medium-heavy load to supply for a longish time, so I'm building myself a big, re-chargeable battery. I purchased four of these 3.2V 10Ah cells: http://www.all-battery.com/32v10ahlifepo4lithiumironphosphaterechargeablebattery.aspx And a ready-made charge/discharge/protection controller: http://www.all-battery.com/protectioncircuitmodulefor3cellslifepo4batterypack-2.aspx
However, while the batteries come with "must read instructions before use," the link on the web site just links to a data sheet that talks about charge/discharge rates, but nothing about actual hook-up. What kind of connections would be best to use for these? I don't particularly think I should solder stranded copper wire to aluminum foil tabs, but I suppose I could if that's what it takes. Are there ready-made connectors/clamps that will work for these? Also, to build the 12.8V pack, can I stack these zig-zag, and literally wrap the +/- terminals together for a wide contact area? If so, how do I secure that?
Also, the company that sells them is only a 15 mile drive away (although it took FedEx 3 days to deliver the package!) so worst case, maybe I can just ask them. Unless they only have sales here, and all the engineering speaks Chinese only...