They're obsolete? Seems like their service life and durability is unmatched by any other battery technology. On 2013-01-03 4:13 PM, Michael Klein wrote: > Hello, >=20 > Nickel Iron is an obsolete rechargeable battery technology... many better > available alternatives out there.. >=20 > check out *http://en.wikipedia.org/wiki/Nickel%E2%80%93iron_battery --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .